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Buy Round Opal Gems

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0.64 ct Round Chocolate Opal, 6 mm From Ethiopia

Natural Chocolate Opal, Qty: 1 pc | 0.64 carat weight Chocolate Opal

0.64ct1 Piece
$ 21.12
6 mm
Item Description
Stone Type: Loose Chocolate Opal
Chocolate Opal Weight: 0.64 ct Chocolate Opal
Chocolate Opal Shape: Round Cabochon Chocolate Opal
Chocolate Opal Size: 6 mm Chocolate Opal
Chocolate Opal Color: Multicolor Chocolate Opal
Chocolate Opal Clarity: Translucent Chocolate Opal
Chocolate Opal Origin: Ethiopia Chocolate Opal
Chocolate Opal Treatment: Untreated
Chocolate Opal Quantity: 1
Chocolate Opal Certificate: GemSelect
Product Description:
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$ 19.73
6.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.81 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.9 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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0.84 ct Round Chocolate Opal, 8 mm From Ethiopia

Natural Chocolate Opal, Qty: 1 pc | 0.84 carat weight Chocolate Opal

0.84ct1 Piece
$ 27.72
8 mm
Item Description
Stone Type: Loose Chocolate Opal
Chocolate Opal Weight: 0.84 ct Chocolate Opal
Chocolate Opal Shape: Round Cabochon Chocolate Opal
Chocolate Opal Size: 8 mm Chocolate Opal
Chocolate Opal Color: Multicolor Chocolate Opal
Chocolate Opal Clarity: Translucent Chocolate Opal
Chocolate Opal Origin: Ethiopia Chocolate Opal
Chocolate Opal Treatment: Untreated
Chocolate Opal Quantity: 1
Chocolate Opal Certificate: GemSelect
Product Description:
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1.26 ct Round Cut Fire Opal, 8.1 mm From Mexico

Natural Fire Opal, Qty: 1 pc | 1.26 carat weight Fire Opal

1.26ct1 Piece
$ 44.10
8.1 mm
Item Description
Stone Type: Loose Fire Opal
Fire Opal Weight: 1.26 ct Fire Opal
Fire Opal Shape: Round Facet Fire Opal
Fire Opal Size: 8.1 mm Fire Opal
Fire Opal Color: Bright 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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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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$ 21.71
6.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.87 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.8 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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1.13ct1 Piece
$ 27.85
7.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.13 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.1 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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3.04ct (total)4 Pieces
$ 71.26
6.6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.76 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.6 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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5.36ct (total)4 Pieces
$ 150.08
8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.34 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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2.26ct (total)4 Pieces
$ 52.98
6.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.57 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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0.72 ct Round Cut Fire Opal, 6.9 mm From Mexico

Natural Fire Opal, Qty: 1 pc | 0.72 carat weight Fire Opal

0.72ct1 Piece
$ 25.20
6.9 mm
Item Description
Stone Type: Loose Fire Opal
Fire Opal Weight: 0.72 ct Fire Opal
Fire Opal Shape: Round Facet Fire Opal
Fire Opal Size: 6.9 mm Fire Opal
Fire Opal Color: Bright 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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2.44ct (total)6 Pieces
$ 93.94
5.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.41 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 5.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 6
Opal Certificate: GemSelect
Product Description:
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6.07ct (total)4 Pieces
$ 186.96
8.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.52 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 8.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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6.46ct (total)5 Pieces
$ 198.97
7.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.29 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.9 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 5
Opal Certificate: GemSelect
Product Description:
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0.53ct1 Piece
$ 17.49
6.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.53 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.1 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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0.82ct1 Piece
$ 27.06
7.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.82 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.1 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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1.92ct (total)5 Pieces
$ 45.01
5.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.38 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 5.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 5
Opal Certificate: GemSelect
Product Description:
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0.44ct1 Piece
$ 14.52
5.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.44 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 5.1 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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0.89ct1 Piece
$ 21.93
7.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.89 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.1 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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3.19ct (total)5 Pieces
$ 74.78
6.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.64 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 5
Opal Certificate: GemSelect
Product Description:
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8.36ct (total)5 Pieces
$ 257.49
8.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.67 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 8.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 5
Opal Certificate: GemSelect
Product Description:
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3.61ct1 Piece
$ 80.07
10.6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.61 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 10.6 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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0.64ct1 Piece
$ 21.12
6.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.64 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 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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2.50ct (total)4 Pieces
$ 58.61
6.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.63 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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9.18 ct Round Black Opal, 15 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 9.18 carat weight Black Opal

9.18ct1 Piece
$ 275.40
15 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 9.18 ct Black Opal
Black Opal Shape: Round Cabochon Black Opal
Black Opal Size: 15 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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0.95ct1 Piece
$ 21.29
6.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.95 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.8 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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0.52ct1 Piece
$ 17.16
6.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.52 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.1 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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1.10ct1 Piece
$ 27.12
7.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.10 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.1 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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1.46ct (total)3 Pieces
$ 34.22
6.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.49 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 3
Opal Certificate: GemSelect
Product Description:
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5.36ct1 Piece
$ 134.00
12.4 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 5.36 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 12.4 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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1.95ct (total)4 Pieces
$ 75.08
5.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.49 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 5.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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1.05ct1 Piece
$ 25.88
7.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.05 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.1 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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0.85ct1 Piece
$ 21.34
6.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.85 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 6.7 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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0.64 ct Round Cut Fire Opal, 6.2 mm From Mexico

Natural Fire Opal, Qty: 1 pc | 0.64 carat weight Fire Opal

0.64ct1 Piece
$ 22.40
6.2 mm
Item Description
Stone Type: Loose Fire Opal
Fire Opal Weight: 0.64 ct Fire Opal
Fire Opal Shape: Round Facet Fire Opal
Fire Opal Size: 6.2 mm Fire Opal
Fire Opal Color: Bright 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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5.72ct (total)4 Pieces
$ 176.18
7.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.43 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 7.9 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 4
Opal Certificate: GemSelect
Product Description:
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2.04ct (total)5 Pieces
$ 43.47
5.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.41 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 5.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 5
Opal Certificate: GemSelect
Product Description:
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More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity.

Opal's fire was long thought to be the result of iridescence. However, with the advent of scanning electron microscopes, we now know that it is a result of diffraction.

Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs scale. Despite its frequent use in rings, opal is a poor choice for a ring stone; it is much better suited to earrings, pins, and pendants.

Major suppliers include Australia, Brazil, Mexico, and the US. Values are normally determined by the presence and nature of color flashes.

Round opal gemstones are available in singles, matched pairs and gem lots. Round opal gems fit various jewelry designs, whether they are used as center stones or accent stones. Choose from various round opal stones in calibrated sizes, including black opal, boulder opal, chocolate opal and opal doublets. Use the search filters at the top of the page to find the perfect round opal gems by size, carat weight, price or origin. The tick boxes will direct you to singles, pairs, lots, faceted gems or cabs.
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