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Natural Opal for Sale, Certified Opals

Natural Opal for Sale - Certified Opals

Buy all types of natural Opal gemstones such as Australian Opal, White Opal, Fire Opal, Ethiopian Opal, Boulder Opal and more online. Our inventory of opal for sale comes in the whole rainbow of colors which include black, white, red, orange, multicolor and much more. Select unique single Opals, matched pairs or lots which are perfect for any type of jewelry such as rings, earrings, wedding bands, pendants and more. The large variety of colors, shapes and sizes makes it easy for every jeweler, designer and collector to find something suitable. All our Opals for Sale are natural which can be certified by well known gemstone labs like ICA Gemlab.
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Photos are of Actual Products for Sale
13.80ct Loose Opal | 13.8 carat White Opal, Oval loose Opal from Australia, Natural Untreated Gem, 23.3 x 11.2 mm, Photo A
Click for Product Video (688677)

13.8 carat White Opal, Oval loose Opal from Australia, Natural Untreated Gem, 23.3 x 11.2 mm

Natural Opal, Qty: 1 pc | 13.80 carat weight Opal

13.80ct1 Piece
$ 690.00
23.3 x 11.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 13.80 ct Opal
Opal Shape: Oval Cabochon Opal
Opal Size: 23.3 x 11.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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35.99ct Loose Boulder Opal | 35.99 ct Fancy Boulder Opal, 45 x 23.8 mm From Australia, Photo A
Click for Product Video (575226)

35.99 ct Fancy Boulder Opal, 45 x 23.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 35.99 carat weight Boulder Opal

35.99ct1 Piece
$ 107.97
45 x 23.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 35.99 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 45 x 23.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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1.42ct Loose Opal | 1.42 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Gem, 9.6 x 6.8 mm, Photo A

1.42 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Gem, 9.6 x 6.8 mm

Natural Opal, Qty: 1 pc | 1.42 carat weight Opal

1.42ct1 Piece
$ 46.86
9.6 x 6.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.42 ct Opal
Opal Shape: Pear Cabochon Opal
Opal Size: 9.6 x 6.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Opaque Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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1.66ct Loose Opal | 1.66 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 10.5 x 7.7 mm, Photo A

1.66 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 10.5 x 7.7 mm

Natural Opal, Qty: 1 pc | 1.66 carat weight Opal

1.66ct1 Piece
$ 46.48
10.5 x 7.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.66 ct Opal
Opal Shape: Fancy Cabochon Opal
Opal Size: 10.5 x 7.7 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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3.65ct Loose Cat's Eye Opal | 3.65 ct Oval Cat's Eye Opal, 11.4 x 8.1 mm From Madagascar, Photo A

3.65 ct Oval Cat's Eye Opal, 11.4 x 8.1 mm From Madagascar

Natural Cat's Eye Opal, Qty: 1 pc | 3.65 carat weight Cat's Eye Opal

3.65ct1 Piece
$ 18.25
11.4 x 8.1 mm
Item Description
Stone Type: Loose Cat's Eye Opal
Cat's Eye Opal Weight: 3.65 ct Cat's Eye Opal
Cat's Eye Opal Shape: Oval Cabochon Cat's Eye Opal
Cat's Eye Opal Size: 11.4 x 8.1 mm Cat's Eye Opal
Cat's Eye Opal Color: Cream Yellow Cat's Eye Opal
Cat's Eye Opal Clarity: Opaque Cat's Eye Opal
Cat's Eye Opal Origin: Madagascar Cat's Eye Opal
Cat's Eye Opal Treatment: Untreated
Cat's Eye Opal Quantity: 1
Cat's Eye Opal Certificate: GemSelect
Product Description:
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35.49ct Loose Cat's Eye Opal | 35.49 ct Oval Cat's Eye Opal, 24.7 x 17.8 mm From Brazil, Photo A

35.49 ct Oval Cat's Eye Opal, 24.7 x 17.8 mm From Brazil

Natural Cat's Eye Opal, Qty: 1 pc | 35.49 carat weight Cat's Eye Opal

35.49ct1 Piece
$ 88.73
24.7 x 17.8 mm
Item Description
Stone Type: Loose Cat's Eye Opal
Cat's Eye Opal Weight: 35.49 ct Cat's Eye Opal
Cat's Eye Opal Shape: Oval Cabochon Cat's Eye Opal
Cat's Eye Opal Size: 24.7 x 17.8 mm Cat's Eye Opal
Cat's Eye Opal Color: Yellowish Green Cat's Eye Opal
Cat's Eye Opal Clarity: Opaque Cat's Eye Opal
Cat's Eye Opal Origin: Brazil Cat's Eye Opal
Cat's Eye Opal Treatment: Untreated
Cat's Eye Opal Quantity: 1
Cat's Eye Opal Certificate: GemSelect
Product Description:
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1.25ct Loose Opal | 1.25 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gem, 9.3 x 7.2 mm, Photo A

1.25 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gem, 9.3 x 7.2 mm

Natural Opal, Qty: 1 pc | 1.25 carat weight Opal

1.25ct1 Piece
$ 31.66
9.3 x 7.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.25 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 9.3 x 7.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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19.94ct Loose Boulder Opal | 19.94 ct Marquise Boulder Opal, 36.4 x 16.3 mm From Australia, Photo A

19.94 ct Marquise Boulder Opal, 36.4 x 16.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 19.94 carat weight Boulder Opal

19.94ct1 Piece
$ 109.67
36.4 x 16.3 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 19.94 ct Boulder Opal
Boulder Opal Shape: Marquise Cabochon Boulder Opal
Boulder Opal Size: 36.4 x 16.3 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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1.80ct Loose Black Opal | 1.8 ct Oval Cut Black Opal, 11.3 x 8.5 mm From Ethiopia, Photo A

1.8 ct Oval Cut Black Opal, 11.3 x 8.5 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 1.80 carat weight Black Opal

1.80ct1 Piece
$ 45.45
11.3 x 8.5 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 1.80 ct Black Opal
Black Opal Shape: Oval Facet Black Opal
Black Opal Size: 11.3 x 8.5 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Translucent Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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20.30ct Loose Boulder Opal | 20.3 ct Fancy Boulder Opal, 25.5 x 16 mm From Australia, Photo A

20.3 ct Fancy Boulder Opal, 25.5 x 16 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 20.30 carat weight Boulder Opal

20.30ct1 Piece
$ 101.50
25.5 x 16 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 20.30 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 25.5 x 16 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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2.54ct Loose Opal | 2.54 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 11.9 x 8.6 mm, Photo A

2.54 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 11.9 x 8.6 mm

Natural Opal, Qty: 1 pc | 2.54 carat weight Opal

2.54ct1 Piece
$ 71.12
11.9 x 8.6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.54 ct Opal
Opal Shape: Fancy Cabochon Opal
Opal Size: 11.9 x 8.6 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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8.11ct Loose Boulder Opal | 8.11 carat Pear Boulder Opal, loose Certified Boulder Opal from Australia, Natural Untreated Gem, 22.1 x 13.8 mm, Photo A

8.11 carat Pear Boulder Opal, loose Certified Boulder Opal from Australia, Natural Untreated Gem, 22.1 x 13.8 mm

Natural Boulder Opal, Qty: 1 pc | 8.11 carat weight Boulder Opal

8.11ct1 Piece
$ 90.55
22.1 x 13.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 8.11 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 22.1 x 13.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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21.39ct Loose Boulder Opal | 21.39 ct Cushion Boulder Opal, 16.4 x 16.4 mm From Australia, Photo A

21.39 ct Cushion Boulder Opal, 16.4 x 16.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 21.39 carat weight Boulder Opal

21.39ct1 Piece
$ 164.70
16.4 x 16.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 21.39 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 16.4 x 16.4 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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1.84ct Loose Opal | 1.84 carat Marquise Cut Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 13.8 x 6.7 mm, Photo A

1.84 carat Marquise Cut Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 13.8 x 6.7 mm

Natural Opal, Qty: 1 pc | 1.84 carat weight Opal

1.84ct1 Piece
$ 64.40
13.8 x 6.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.84 ct Opal
Opal Shape: Marquise Cabochon Opal
Opal Size: 13.8 x 6.7 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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1.70ct Loose Opal | 1.7 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gem, 10.4 x 7.8 mm, Photo A

1.7 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gem, 10.4 x 7.8 mm

Natural Opal, Qty: 1 pc | 1.70 carat weight Opal

1.70ct1 Piece
$ 43.06
10.4 x 7.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.70 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 10.4 x 7.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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17.03ct Loose Boulder Opal | 17.03 ct Fancy Boulder Opal, 26.9 x 13.5 mm From Australia, Photo A

17.03 ct Fancy Boulder Opal, 26.9 x 13.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 17.03 carat weight Boulder Opal

17.03ct1 Piece
$ 93.67
26.9 x 13.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 17.03 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 26.9 x 13.5 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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2.45ct Loose Opal | 2.45 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 11.2 x 10 mm, Photo A

2.45 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 11.2 x 10 mm

Natural Opal, Qty: 1 pc | 2.45 carat weight Opal

2.45ct1 Piece
$ 68.60
11.2 x 10 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.45 ct Opal
Opal Shape: Fancy Cabochon Opal
Opal Size: 11.2 x 10 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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6.92ct Loose Cat's Eye Opal | 6.92 ct Oval Cat's Eye Opal, 14.1 x 11.6 mm From Madagascar, Photo A

6.92 ct Oval Cat's Eye Opal, 14.1 x 11.6 mm From Madagascar

Natural Cat's Eye Opal, Qty: 1 pc | 6.92 carat weight Cat's Eye Opal

6.92ct1 Piece
$ 20.76
14.1 x 11.6 mm
Item Description
Stone Type: Loose Cat's Eye Opal
Cat's Eye Opal Weight: 6.92 ct Cat's Eye Opal
Cat's Eye Opal Shape: Oval Cabochon Cat's Eye Opal
Cat's Eye Opal Size: 14.1 x 11.6 mm Cat's Eye Opal
Cat's Eye Opal Color: Medium Orange Cat's Eye Opal
Cat's Eye Opal Clarity: Opaque Cat's Eye Opal
Cat's Eye Opal Origin: Madagascar Cat's Eye Opal
Cat's Eye Opal Treatment: Untreated
Cat's Eye Opal Quantity: 1
Cat's Eye Opal Certificate: GemSelect
Product Description:
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23.40ct Loose Boulder Opal | 23.4 ct Oval Boulder Opal, 24.1 x 16.7 mm From Australia, Photo A
Click for Product Video (628053)

23.4 ct Oval Boulder Opal, 24.1 x 16.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 23.40 carat weight Boulder Opal

23.40ct1 Piece
$ 117.00
24.1 x 16.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 23.40 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 24.1 x 16.7 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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20.10ct Loose Boulder Opal | 20.1 ct Cushion Boulder Opal, 21.1 x 16.6 mm From Australia, Photo A

20.1 ct Cushion Boulder Opal, 21.1 x 16.6 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 20.10 carat weight Boulder Opal

20.10ct1 Piece
$ 100.50
21.1 x 16.6 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 20.10 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 21.1 x 16.6 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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26.43ct Loose Boulder Opal | 26.43 ct Oval Boulder Opal, 28.5 x 17.9 mm From Australia, Photo A
Click for Product Video (521759)

26.43 ct Oval Boulder Opal, 28.5 x 17.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 26.43 carat weight Boulder Opal

26.43ct1 Piece
$ 145.37
28.5 x 17.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 26.43 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 28.5 x 17.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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1.13ct Loose Fire Opal | 1.13 ct Round Cut Fire Opal, 8.1 mm From Mexico, Photo A

1.13 ct Round Cut Fire Opal, 8.1 mm From Mexico

Natural Fire Opal, Qty: 1 pc | 1.13 carat weight Fire Opal

1.13ct1 Piece
$ 39.55
8.1 mm
Item Description
Stone Type: Loose Fire Opal
Fire Opal Weight: 1.13 ct Fire Opal
Fire Opal Shape: Round Facet Fire Opal
Fire Opal Size: 8.1 mm Fire Opal
Fire Opal Color: Fire Orange Fire Opal
Fire Opal Clarity: Transparent Fire Opal
Fire Opal Origin: Mexico Fire Opal
Fire Opal Treatment: Untreated
Fire Opal Quantity: 1
Fire Opal Certificate: GemSelect
Product Description:
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5.89ct Loose Cat's Eye Opal | 5.89 ct Oval Cat's Eye Opal, 13.7 x 10.5 mm From Madagascar, Photo A

5.89 ct Oval Cat's Eye Opal, 13.7 x 10.5 mm From Madagascar

Natural Cat's Eye Opal, Qty: 1 pc | 5.89 carat weight Cat's Eye Opal

5.89ct1 Piece
$ 32.40
13.7 x 10.5 mm
Item Description
Stone Type: Loose Cat's Eye Opal
Cat's Eye Opal Weight: 5.89 ct Cat's Eye Opal
Cat's Eye Opal Shape: Oval Cabochon Cat's Eye Opal
Cat's Eye Opal Size: 13.7 x 10.5 mm Cat's Eye Opal
Cat's Eye Opal Color: Medium Brown Cat's Eye Opal
Cat's Eye Opal Clarity: Translucent Cat's Eye Opal
Cat's Eye Opal Origin: Madagascar Cat's Eye Opal
Cat's Eye Opal Treatment: Untreated
Cat's Eye Opal Quantity: 1
Cat's Eye Opal Certificate: GemSelect
Product Description:
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2.05ct Loose Black Opal | 2.05 carat Pear Shape Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 14.4 x 8.4 mm, Photo A

2.05 carat Pear Shape Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 14.4 x 8.4 mm

Natural Black Opal, Qty: 1 pc | 2.05 carat weight Black Opal

2.05ct1 Piece
$ 51.76
14.4 x 8.4 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 2.05 ct Black Opal
Black Opal Shape: Pear Facet Black Opal
Black Opal Size: 14.4 x 8.4 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Translucent Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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1.30ct Loose Black Opal | 1.3 carat Pear Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 10.2 x 6.9 mm, Photo A

1.3 carat Pear Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 10.2 x 6.9 mm

Natural Black Opal, Qty: 1 pc | 1.30 carat weight Black Opal

1.30ct1 Piece
$ 42.90
10.2 x 6.9 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 1.30 ct Black Opal
Black Opal Shape: Pear Cabochon Black Opal
Black Opal Size: 10.2 x 6.9 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Translucent Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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30.94ct Loose Boulder Opal | 30.94 ct Fancy Boulder Opal, 25.4 x 20.1 mm From Australia, Photo A
Click for Product Video (521754)

30.94 ct Fancy Boulder Opal, 25.4 x 20.1 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 30.94 carat weight Boulder Opal

30.94ct1 Piece
$ 170.17
25.4 x 20.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 30.94 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 25.4 x 20.1 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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16.81ct Loose Boulder Opal | 16.81 ct Fancy Boulder Opal, 28.8 x 13.1 mm From Australia, Photo A
Click for Product Video (628411)

16.81 ct Fancy Boulder Opal, 28.8 x 13.1 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 16.81 carat weight Boulder Opal

16.81ct1 Piece
$ 84.05
28.8 x 13.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 16.81 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 28.8 x 13.1 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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2.17ct Loose Black Opal | 2.17 carat Pear Shape Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 13.4 x 8.3 mm, Photo A

2.17 carat Pear Shape Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 13.4 x 8.3 mm

Natural Black Opal, Qty: 1 pc | 2.17 carat weight Black Opal

2.17ct1 Piece
$ 54.79
13.4 x 8.3 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 2.17 ct Black Opal
Black Opal Shape: Pear Facet Black Opal
Black Opal Size: 13.4 x 8.3 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Translucent Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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5.66ct Loose Black Opal | 5.66 ct Oval Black Opal, 15.6 x 11.6 mm From Ethiopia, Photo A

5.66 ct Oval Black Opal, 15.6 x 11.6 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 5.66 carat weight Black Opal

5.66ct1 Piece
$ 169.80
15.6 x 11.6 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 5.66 ct Black Opal
Black Opal Shape: Oval Cabochon Black Opal
Black Opal Size: 15.6 x 11.6 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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1.09ct Loose Opal | 1.09 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 11.1 x 6 mm, Photo A

1.09 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 11.1 x 6 mm

Natural Opal, Qty: 1 pc | 1.09 carat weight Opal

1.09ct1 Piece
$ 35.97
11.1 x 6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.09 ct Opal
Opal Shape: Pear Facet Opal
Opal Size: 11.1 x 6 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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10.94ct Loose Fire Opal | 10.94 carat Pear Fire Opal, loose Certified Fire Opal from Mexico, Natural Untreated Gem, 22.1 x 13.7 mm, Photo A
Click for Product Video (383093)

10.94 carat Pear Fire Opal, loose Certified Fire Opal from Mexico, Natural Untreated Gem, 22.1 x 13.7 mm

Natural Fire Opal, Qty: 1 pc | 10.94 carat weight Fire Opal

10.94ct1 Piece
$ 256.93
22.1 x 13.7 mm
Item Description
Stone Type: Loose Fire Opal
Fire Opal Weight: 10.94 ct Fire Opal
Fire Opal Shape: Pear Cabochon Fire Opal
Fire Opal Size: 22.1 x 13.7 mm Fire Opal
Fire Opal Color: Golden-Orange Fire Opal
Fire Opal Clarity: Transparent Fire Opal
Fire Opal Origin: Mexico Fire Opal
Fire Opal Treatment: Untreated
Fire Opal Quantity: 1
Fire Opal Certificate: GemSelect
Product Description:
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2.13ct Loose Black Opal | 2.13 ct Oval Cut Black Opal, 12.6 x 9.4 mm From Ethiopia, Photo A

2.13 ct Oval Cut Black Opal, 12.6 x 9.4 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 2.13 carat weight Black Opal

2.13ct1 Piece
$ 53.78
12.6 x 9.4 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 2.13 ct Black Opal
Black Opal Shape: Oval Facet Black Opal
Black Opal Size: 12.6 x 9.4 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Translucent Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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2.81ct Loose Opal | 2.81 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 12.6 x 9.1 mm, Photo A

2.81 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 12.6 x 9.1 mm

Natural Opal, Qty: 1 pc | 2.81 carat weight Opal

2.81ct1 Piece
$ 78.68
12.6 x 9.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.81 ct Opal
Opal Shape: Fancy Cabochon Opal
Opal Size: 12.6 x 9.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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15.88ct Loose Boulder Opal | 15.88 ct Cushion Boulder Opal, 23.1 x 12.2 mm From Australia, Photo A

15.88 ct Cushion Boulder Opal, 23.1 x 12.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 15.88 carat weight Boulder Opal

15.88ct1 Piece
$ 111.16
23.1 x 12.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 15.88 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 23.1 x 12.2 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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6.78ct Loose Black Opal | 6.78 carat Pear Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 16.8 x 14.4 mm, Photo A

6.78 carat Pear Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 16.8 x 14.4 mm

Natural Black Opal, Qty: 1 pc | 6.78 carat weight Black Opal

6.78ct1 Piece
$ 203.40
16.8 x 14.4 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 6.78 ct Black Opal
Black Opal Shape: Pear Cabochon Black Opal
Black Opal Size: 16.8 x 14.4 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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18.73ct Loose Opal | 18.73 carat Green Opal, Oval loose Opal from Brazil, Natural Untreated Gem, 23.3 x 12.9 mm, Photo A

18.73 carat Green Opal, Oval loose Opal from Brazil, Natural Untreated Gem, 23.3 x 12.9 mm

Natural Opal, Qty: 1 pc | 18.73 carat weight Opal

18.73ct1 Piece
$ 40.27
23.3 x 12.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 18.73 ct Opal
Opal Shape: Oval Cabochon Opal
Opal Size: 23.3 x 12.9 mm Opal
Opal Color: Yellowish Green Opal
Opal Clarity: Opaque Opal
Opal Origin: Brazil Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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Opals are thought of by many as the most beautiful and exciting of all gemstones. The fascinating play-of-color in which a rainbow of hues dances before your eyes is one of the true wonders of nature.

Opals are a unique gemstone in every sense of the word, from their crystal structure made up of millions of tiny spheres to their transparent, translucent or opaque bodies. They can be a single vivid color or a mix of all imaginable colors, have a light white background or a deep dark backing - the variety is endless.

Opal Colors

Describing the color of an opal is not simple. Some opals possess all the colors of the rainbow but never in regular lines or bands - more like an abstract painting or a random composition.

I will attempt to categorize opal colors as best I can.

We have the most common. White opals with a pale or light body tone upon which the kaleidoscopic colors will be displayed.

Then we have Black opals which have a dark body or background for the colors to contrast against in a dramatic manner.

There are also Fire opals which are generally all one color but the color is a vivid and intense hue often red, yellow or orange as the name may suggest.

The variety of opal colors is too vast to go into much detail but please read our article on Opals for more information.

Opal Species

The types of gemstones that fall under the name of opal are almost as endless as the colors they come in.

Just some of the more well-known ones are:

And we could go on and on!

Opal Price

As with most gemstones, it is the color of the opal that is the number one consideration when appraising its price.

Opals are such an irregular gemstone so there will always be different opinions about which is the most beautiful and we all have our own preferences but over the years certain trends have proved more valuable than others.

For example, an opal that has a dominant red color covering much of the gemstone surface will be very highly valued.

As a very general rule, as you move down the color spectrum from red and orange through green to blue the price lessens more and more.

The direction of the color is an aspect not found in many other stones. Because of the crystal structure of opals, some colors will appear clearer and brighter from one angle more than another.

Other factors have to be taken into account of course with color coverage, contrasts between the color and the background, color intensity and so on.

Carat Weight

Once an opal has been evaluated according to its color, intensity, play-of-color, coverage and so on it is given a price per carat to calculate the gemstone's total value.

Australian opals can be priced as low as $20 per carat all the way up to as much as $1000 per carat for the finest examples.

Fire Opals reach $15 - $100 per carat and Boulder Opals can be found at prices of $5 - $300 per carat depending on quality.

Treatments

Usually Opals are not treated other than by cutting and shaping the stone to capture the best color and pattern and then polishing it.

Some opals look better with a stark contrast between a dark background and a bright color up front. To his end smoke can be introduced into the gemstone's pores to darken the stone. For the same reasons, black opals can be treated with a sugar-acid solution.

A totally accepted form of treatment for opals is the doublet or triplet where a thin layer of opal is mounted onto a durable backing and sometimes given a clear top. This protects the very thin and fragile opal material.

All treatments received by any of our gemstones are clearly disclosed.

Where are Opals found?

Australia is the most famous source of opals with around 90% of the world's supplies originating there. Ethiopia has become a significant player in the Black Opal trade while Fire Opals are most often found in Mexico.

What jewelry is Opal suitable for?

Opals have a rating of 5.5 to 6.5 on Mohs hardness scale. This would normally make them a little bit fragile for many types of jewelry items and not suitable for daily wear.

However gemstones such as Boulder Opals and Matrix Opals are still attached to the durable rocks they formed in so are much tougher than the rating would suggest.

Opal couplets and triplets are also designed to be worn on a regular basis.

Large and striking opals cut into interesting odd shapes can help create wonderful and unique jewelry items, especially pendants, brooches and earrings where durability is not such an issue.

Birthstones and Anniversaries

Opals are the birthstone of October and would make an ideal gift for anyone who has a birthday in that month.

An opal is the traditional gemstone gift for the 14th wedding anniversary.

Read All

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