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Buy 16 - 18 mm Boulder Opal Gems

(25)
16 - 18 mm Boulder Opal Gems Weight 16 - 18 mm Boulder Opal Gems Size 16 - 18 mm Boulder Opal Gems Clarity 16 - 18 mm Boulder Opal Gems Price 16 - 18 mm Boulder Opal Gems Origin
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Photos are of Actual Products for Sale

5.29 ct Fancy Boulder Opal, 17.4 x 12.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 5.29 carat weight Boulder Opal

5.29ct1 Piece
$ 26.45
17.4 x 12.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 5.29 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 17.4 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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7.88 ct Oval Boulder Opal, 16.8 x 11.6 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 7.88 carat weight Boulder Opal

7.88ct1 Piece
$ 39.40
16.8 x 11.6 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 7.88 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 16.8 x 11.6 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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11.24 ct Fancy Boulder Opal, 16.7 x 13.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 11.24 carat weight Boulder Opal

11.24ct1 Piece
$ 56.20
16.7 x 13.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 11.24 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 16.7 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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6.9 ct Fancy Boulder Opal, 16.1 x 12.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 6.90 carat weight Boulder Opal

6.90ct1 Piece
$ 34.50
16.1 x 12.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 6.90 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 16.1 x 12.5 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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6.16 ct Fancy Boulder Opal, 16.7 x 9.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 6.16 carat weight Boulder Opal

6.16ct1 Piece
$ 30.80
16.7 x 9.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 6.16 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 16.7 x 9.7 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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9.92 ct Fancy Boulder Opal, 17.4 x 15.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 9.92 carat weight Boulder Opal

9.92ct1 Piece
$ 49.60
17.4 x 15.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 9.92 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 17.4 x 15.5 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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6.1 ct Fancy Boulder Opal, 17 x 11.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 6.10 carat weight Boulder Opal

6.10ct1 Piece
$ 30.50
17 x 11.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 6.10 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 17 x 11.5 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Transparent 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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14.15 ct Fancy Boulder Opal, 17.9 x 14.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 14.15 carat weight Boulder Opal

14.15ct1 Piece
$ 70.75
17.9 x 14.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 14.15 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 17.9 x 14.9 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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11.57 ct Oval Boulder Opal, 17.3 x 12.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 11.57 carat weight Boulder Opal

11.57ct1 Piece
$ 80.99
17.3 x 12.3 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 11.57 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 17.3 x 12.3 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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9.46ct1 Piece
$ 66.22
17.9 x 12 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 9.46 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 17.9 x 12 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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5.28 ct Trillion Boulder Opal, 17.3 x 15.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 5.28 carat weight Boulder Opal

5.28ct1 Piece
$ 36.96
17.3 x 15.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 5.28 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 17.3 x 15.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Translucent 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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7.48ct1 Piece
$ 52.36
16.5 x 11.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 7.48 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 16.5 x 11.8 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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7.58 ct Fancy Boulder Opal, 18 x 9.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 7.58 carat weight Boulder Opal

7.58ct1 Piece
$ 37.90
18 x 9.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 7.58 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 18 x 9.2 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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14.37 ct Oval Boulder Opal, 16.4 x 13.1 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 14.37 carat weight Boulder Opal

14.37ct1 Piece
$ 100.59
16.4 x 13.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 14.37 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 16.4 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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8.06 ct Oval Boulder Opal, 16.8 x 11.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 8.06 carat weight Boulder Opal

8.06ct1 Piece
$ 62.06
16.8 x 11.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 8.06 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 16.8 x 11.8 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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12.73 ct Trillion Boulder Opal, 16.6 x 15.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 12.73 carat weight Boulder Opal

12.73ct1 Piece
$ 63.65
16.6 x 15.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 12.73 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 16.6 x 15.7 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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9.35 ct Fancy Boulder Opal, 17.6 x 14.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 9.35 carat weight Boulder Opal

9.35ct1 Piece
$ 46.75
17.6 x 14.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 9.35 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 17.6 x 14.2 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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12.53 ct Oval Boulder Opal, 17.8 x 13.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 12.53 carat weight Boulder Opal

12.53ct1 Piece
$ 62.65
17.8 x 13.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 12.53 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 17.8 x 13.7 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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10.97 ct Cushion Boulder Opal, 17 x 11.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 10.97 carat weight Boulder Opal

10.97ct1 Piece
$ 54.85
17 x 11.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 10.97 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 17 x 11.4 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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11.65 ct Round Boulder Opal, 17 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 11.65 carat weight Boulder Opal

11.65ct1 Piece
$ 81.55
17 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 11.65 ct Boulder Opal
Boulder Opal Shape: Round Cabochon Boulder Opal
Boulder Opal Size: 17 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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7.85 ct Fancy Boulder Opal, 16.4 x 11.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 7.85 carat weight Boulder Opal

7.85ct1 Piece
$ 54.95
16.4 x 11.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 7.85 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 16.4 x 11.8 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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11.36 ct Cushion Boulder Opal, 17.5 x 11.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 11.36 carat weight Boulder Opal

11.36ct1 Piece
$ 56.80
17.5 x 11.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 11.36 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 17.5 x 11.4 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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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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39.95 ct Drilled Sphere Boulder Opal, 17.6 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 39.95 carat weight Boulder Opal

39.95ct1 Piece
$ 199.75
17.6 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 39.95 ct Boulder Opal
Boulder Opal Shape: Drilled Sphere Boulder Opal
Boulder Opal Size: 17.6 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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7.81ct1 Piece
$ 60.14
16.4 x 10.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 7.81 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 16.4 x 10.5 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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Overall Rating -> 7 star ratings

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

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