Calibrated 18 x 13 mm Octagon Shape Natural Gemstones: GemSelect

Item Description
Stone Type:	Loose Citrine
Citrine Weight:	15.19 ct Citrine
Citrine Shape:	Octagon Step Cut Citrine
Citrine Size:	17.9 x 12.9 mm Citrine
Citrine Color:	Medium Gold Citrine
Citrine Clarity:	VVS Citrine
Citrine Origin:	Brazil Citrine
Citrine Treatment:	Untreated
Citrine Quantity:	1
Citrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Apatite
Apatite Weight:	20.43 ct Apatite
Apatite Shape:	Octagon Facet Apatite
Apatite Size:	17.5 x 13.2 mm Apatite
Apatite Color:	Yellow Brown Apatite
Apatite Clarity:	VS-SI Apatite
Apatite Origin:	Madagascar Apatite
Apatite Treatment:	Untreated
Apatite Quantity:	1
Apatite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Citrine
Citrine Weight:	13.52 ct Citrine
Citrine Shape:	Octagon Step Cut Citrine
Citrine Size:	18 x 13 mm Citrine
Citrine Color:	Medium Golden Citrine
Citrine Clarity:	VS Citrine
Citrine Origin:	Brazil Citrine
Citrine Treatment:	Untreated
Citrine Quantity:	1
Citrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	15.58 ct Amethyst
Amethyst Shape:	Octagon Step Cut Amethyst
Amethyst Size:	18.2 x 13.4 mm Amethyst
Amethyst Color:	Medium Purplish Violet Amethyst
Amethyst Clarity:	VS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	14.44 ct Amethyst
Amethyst Shape:	Octagon Step Cut Amethyst
Amethyst Size:	18.5 x 13.3 mm Amethyst
Amethyst Color:	Deep Purplish Violet Amethyst
Amethyst Clarity:	VVS-VS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Kunzite
Kunzite Weight:	21.73 ct Kunzite
Kunzite Shape:	Octagon Step Cut Kunzite
Kunzite Size:	18.2 x 13.4 mm Kunzite
Kunzite Color:	Very Light Pink Kunzite
Kunzite Clarity:	VVS-VS Kunzite
Kunzite Origin:	Afghanistan Kunzite
Kunzite Treatment:	Untreated
Kunzite Quantity:	1
Kunzite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Citrine
Citrine Weight:	14.68 ct Citrine
Citrine Shape:	Octagon Step Cut Citrine
Citrine Size:	17.9 x 12.9 mm Citrine
Citrine Color:	Golden-Yellow Citrine
Citrine Clarity:	VVS Citrine
Citrine Origin:	Brazil Citrine
Citrine Treatment:	Untreated
Citrine Quantity:	1
Citrine Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Citrine
Citrine Weight:	11.88 ct Citrine
Citrine Shape:	Octagon Step Cut Citrine
Citrine Size:	17.8 x 12.9 mm Citrine
Citrine Color:	Medium Gold Citrine
Citrine Clarity:	VVS Citrine
Citrine Origin:	Brazil Citrine
Citrine Treatment:	Untreated
Citrine Quantity:	1
Citrine 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 Octagon shape / Emerald-Cut, faceted and cabochon gems available now in 18 x 13 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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Gemstone Information

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Overall Rating -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

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purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

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Selected Gemstones

Gemstones A-Z

Buy Octagon Shape 18x13 mm Gems

15.19 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 17.9 x 12.9 mm

Natural Citrine, Qty: 1 pc | 15.19 carat weight Citrine

20.43 ct Yellow Apatite, 17.5 x 13.2 mm Octagon Cut From Madagascar

Natural Apatite, Qty: 1 pc | 20.43 carat weight Apatite

13.52 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 18 x 13 mm

Natural Citrine, Qty: 1 pc | 13.52 carat weight Citrine

15.58 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.2 x 13.4 mm

Natural Amethyst, Qty: 1 pc | 15.58 carat weight Amethyst

14.44 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.5 x 13.3 mm

Natural Amethyst, Qty: 1 pc | 14.44 carat weight Amethyst

21.73 ct Loose Pink Kunzite, 18.2 x 13.4 mm Octagon Cut From Afghanistan

Natural Kunzite, Qty: 1 pc | 21.73 carat weight Kunzite

14.68 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 17.9 x 12.9 mm

Natural Citrine, Qty: 1 pc | 14.68 carat weight Citrine

11.88 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 17.8 x 12.9 mm

Natural Citrine, Qty: 1 pc | 11.88 carat weight Citrine

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