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Buy Oval Shape 18x13 mm Gems

(11)
Oval Shape 18x13 mm Gems Weight Oval Shape 18x13 mm Gems Size Oval Shape 18x13 mm Gems Clarity Oval Shape 18x13 mm Gems Price Oval Shape 18x13 mm Gems Origin
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12.32ct Loose Onyx | 12.32 ct Oval Onyx, 18.2 x 13.3 mm From Sri Lanka, Photo A

12.32 ct Oval Onyx, 18.2 x 13.3 mm From Sri Lanka

Buy Natural Onyx, Qty: 1 pc | 12.32 carat weight Onyx

12.32ct1 Piece
$ 24.64
18.2 x 13.3 mm
Item Description
Stone Type: Loose Onyx
Onyx Weight: 12.32 ct Onyx
Onyx Shape: Oval Cabochon Onyx
Onyx Size: 18.2 x 13.3 mm Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Origin: Sri Lanka Onyx
Onyx Treatment: Dyed
Onyx Quantity: 1
Onyx Certificate: GemSelect
Product Description:
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12.12ct Loose Onyx | 12.12 ct Oval Onyx, 18.2 x 13.1 mm From Sri Lanka, Photo A

12.12 ct Oval Onyx, 18.2 x 13.1 mm From Sri Lanka

Buy Natural Onyx, Qty: 1 pc | 12.12 carat weight Onyx

12.12ct1 Piece
$ 24.24
18.2 x 13.1 mm
Item Description
Stone Type: Loose Onyx
Onyx Weight: 12.12 ct Onyx
Onyx Shape: Oval Cabochon Onyx
Onyx Size: 18.2 x 13.1 mm Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Origin: Sri Lanka Onyx
Onyx Treatment: Dyed
Onyx Quantity: 1
Onyx Certificate: GemSelect
Product Description:
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26.13ct Loose Spinel | 26.13 ct Black Spinel, 18.1 x 13.2 mm Oval Rose Cut From Thailand, Photo A

26.13 ct Black Spinel, 18.1 x 13.2 mm Oval Rose Cut From Thailand

Buy Natural Spinel, Qty: 2 pcs | 26.13 carat weight Spinel

26.13ct (total)2 Pieces
$ 86.23
18.1 x 13.2 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 13.07 ct Spinel
Spinel Shape: Oval Rose-Cut Spinel
Spinel Size: 18.1 x 13.2 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
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26.87ct Loose Spinel | 26.87 ct Black Spinel, 17.9 x 13 mm Oval Rose Cut From Thailand, Photo A

26.87 ct Black Spinel, 17.9 x 13 mm Oval Rose Cut From Thailand

Buy Natural Spinel, Qty: 2 pcs | 26.87 carat weight Spinel

26.87ct (total)2 Pieces
$ 88.67
17.9 x 13 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 13.44 ct Spinel
Spinel Shape: Oval Rose-Cut Spinel
Spinel Size: 17.9 x 13 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
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11.40ct Loose Onyx | 11.4 ct Oval Onyx, 18.2 x 13.3 mm From Sri Lanka, Photo A

11.4 ct Oval Onyx, 18.2 x 13.3 mm From Sri Lanka

Buy Natural Onyx, Qty: 1 pc | 11.40 carat weight Onyx

11.40ct1 Piece
$ 22.80
18.2 x 13.3 mm
Item Description
Stone Type: Loose Onyx
Onyx Weight: 11.40 ct Onyx
Onyx Shape: Oval Cabochon Onyx
Onyx Size: 18.2 x 13.3 mm Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Origin: Sri Lanka Onyx
Onyx Treatment: Dyed
Onyx Quantity: 1
Onyx Certificate: GemSelect
Product Description:
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25.08ct Loose Spinel | 25.08 ct Black Spinel, 18.2 x 13.1 mm Oval Rose Cut From Thailand, Photo A

25.08 ct Black Spinel, 18.2 x 13.1 mm Oval Rose Cut From Thailand

Buy Natural Spinel, Qty: 2 pcs | 25.08 carat weight Spinel

25.08ct (total)2 Pieces
$ 82.76
18.2 x 13.1 mm
Item Description
Stone Type: Loose Spinel
Spinel Weight: 12.54 ct Spinel
Spinel Shape: Oval Rose-Cut Spinel
Spinel Size: 18.2 x 13.1 mm Spinel
Spinel Color: Black Spinel
Spinel Clarity: Opaque Spinel
Spinel Origin: Thailand Spinel
Spinel Treatment: Untreated
Spinel Quantity: 2
Spinel Certificate: GemSelect
Product Description:
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16.77ct Loose Pietersite | 16.77 ct Oval Pietersite, 18.3 x 13.2 mm From Namibia, Photo A

16.77 ct Oval Pietersite, 18.3 x 13.2 mm From Namibia

Buy Natural Pietersite, Qty: 2 pcs | 16.77 carat weight Pietersite

16.77ct (total)2 Pieces
$ 73.79
18.3 x 13.2 mm
Item Description
Stone Type: Loose Pietersite
Pietersite Weight: 8.39 ct Pietersite
Pietersite Shape: Oval Cabochon Pietersite
Pietersite Size: 18.3 x 13.2 mm Pietersite
Pietersite Color: Black Pietersite
Pietersite Clarity: Opaque Pietersite
Pietersite Origin: Namibia Pietersite
Pietersite Treatment: Untreated
Pietersite Quantity: 2
Pietersite Certificate: GemSelect
Product Description:
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15.11ct Loose Nuummite | 15.11 ct Oval Nuummite, 17.7 x 13.5 mm From India, Photo A

15.11 ct Oval Nuummite, 17.7 x 13.5 mm From India

Buy Natural Nuummite, Qty: 1 pc | 15.11 carat weight Nuummite

15.11ct1 Piece
$ 66.94
17.7 x 13.5 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 15.11 ct Nuummite
Nuummite Shape: Oval Cabochon Nuummite
Nuummite Size: 17.7 x 13.5 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
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16.00ct Loose Nuummite | 16 ct Oval Nuummite, 18.1 x 12.8 mm From India, Photo A

16 ct Oval Nuummite, 18.1 x 12.8 mm From India

Buy Natural Nuummite, Qty: 1 pc | 16.00 carat weight Nuummite

16.00ct1 Piece
$ 70.88
18.1 x 12.8 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 16.00 ct Nuummite
Nuummite Shape: Oval Cabochon Nuummite
Nuummite Size: 18.1 x 12.8 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
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15.26ct Loose Pietersite | 15.26 ct Oval Pietersite, 18 x 13 mm From Namibia, Photo A

15.26 ct Oval Pietersite, 18 x 13 mm From Namibia

Buy Natural Pietersite, Qty: 2 pcs | 15.26 carat weight Pietersite

15.26ct (total)2 Pieces
$ 67.14
18 x 13 mm
Item Description
Stone Type: Loose Pietersite
Pietersite Weight: 7.63 ct Pietersite
Pietersite Shape: Oval Cabochon Pietersite
Pietersite Size: 18 x 13 mm Pietersite
Pietersite Color: Black Pietersite
Pietersite Clarity: Opaque Pietersite
Pietersite Origin: Namibia Pietersite
Pietersite Treatment: Untreated
Pietersite Quantity: 2
Pietersite Certificate: GemSelect
Product Description:
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11.12ct Loose Nuummite | 11.12 ct Oval Nuummite, 18.1 x 13.3 mm From India, Photo A

11.12 ct Oval Nuummite, 18.1 x 13.3 mm From India

Buy Natural Nuummite, Qty: 1 pc | 11.12 carat weight Nuummite

11.12ct1 Piece
$ 49.04
18.1 x 13.3 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 11.12 ct Nuummite
Nuummite Shape: Oval Cabochon Nuummite
Nuummite Size: 18.1 x 13.3 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
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Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated oval shapes, facet cut and cabochon gems available now in 18 x13 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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Overall Rating -> 10 star ratings

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