Calibrated 12 x 10 mm Cushion Shape Loose Natural Gemstones from G...

Item Description
Stone Type:	Loose Tanzanite
Tanzanite Weight:	7.98 ct Tanzanite
Tanzanite Shape:	Cushion-Cut Tanzanite
Tanzanite Size:	12.3 x 10.4 mm Tanzanite
Tanzanite Color:	Intense Violet Blue Tanzanite
Tanzanite Clarity:	VVS-VS Tanzanite
Tanzanite Origin:	Tanzania Tanzanite
Tanzanite Treatment:	Heated
Tanzanite Quantity:	1
Tanzanite Certificate:	GemSelect
Product Description:

Some people by gems by color or price, but for many, it is best to buy gems by size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated cushion shapes, facet cut and cabochon gems available now in 12 mm x 10 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 meant nor 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 around 0.3 mm or slightly higher even. This small variance can usually be accommodated for 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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