Calibrated 18 x 13 mm Oval Shape Natural Loose Gemstones: GemSelect

Item Description
Stone Type:	Loose Ametrine
Ametrine Weight:	17.33 ct Ametrine
Ametrine Shape:	Oval Facet Ametrine
Ametrine Size:	18.7 x 13 mm Ametrine
Ametrine Color:	Bi-color Ametrine
Ametrine Clarity:	VVS-VS Ametrine
Ametrine Origin:	Brazil Ametrine
Ametrine Treatment:	Untreated
Ametrine Quantity:	1
Ametrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Ametrine
Ametrine Weight:	10.95 ct Ametrine
Ametrine Shape:	Oval Facet Ametrine
Ametrine Size:	17.3 x 13.5 mm Ametrine
Ametrine Color:	Bi-color Ametrine
Ametrine Clarity:	VVS Ametrine
Ametrine Origin:	Brazil Ametrine
Ametrine Treatment:	Untreated
Ametrine Quantity:	1
Ametrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Ametrine
Ametrine Weight:	14.62 ct Ametrine
Ametrine Shape:	Oval Facet Ametrine
Ametrine Size:	17.4 x 13 mm Ametrine
Ametrine Color:	Bi-color Ametrine
Ametrine Clarity:	VVS-VS Ametrine
Ametrine Origin:	Brazil Ametrine
Ametrine Treatment:	Untreated
Ametrine Quantity:	1
Ametrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Ametrine
Ametrine Weight:	16.92 ct Ametrine
Ametrine Shape:	Oval Facet Ametrine
Ametrine Size:	17.5 x 13.4 mm Ametrine
Ametrine Color:	Bi-color Ametrine
Ametrine Clarity:	VS Ametrine
Ametrine Origin:	Brazil Ametrine
Ametrine Treatment:	Untreated
Ametrine Quantity:	1
Ametrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Ametrine
Ametrine Weight:	16.73 ct Ametrine
Ametrine Shape:	Oval Facet Ametrine
Ametrine Size:	18.6 x 13.2 mm Ametrine
Ametrine Color:	Bi-color Ametrine
Ametrine Clarity:	VS Ametrine
Ametrine Origin:	Brazil Ametrine
Ametrine Treatment:	Untreated
Ametrine Quantity:	1
Ametrine Certificate:	GemSelect
Product Description:

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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Selected Gemstones

Gemstones A-Z

Buy Oval Shape 18x13 mm Gems

17.33 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 18.7 x 13 mm

Natural Ametrine, Qty: 1 pc | 17.33 carat weight Ametrine

10.95 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 17.3 x 13.5 mm

Natural Ametrine, Qty: 1 pc | 10.95 carat weight Ametrine

14.62 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 17.4 x 13 mm

Natural Ametrine, Qty: 1 pc | 14.62 carat weight Ametrine

16.92 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 17.5 x 13.4 mm

Natural Ametrine, Qty: 1 pc | 16.92 carat weight Ametrine

16.73 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 18.6 x 13.2 mm

Natural Ametrine, Qty: 1 pc | 16.73 carat weight Ametrine

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