Gem Hut - Ametrine (Quartz) Gemstones

Ametrine (Quartz) Gemstones

Hardness

7.0 on the Mohs scale.
Occurrence

Bolivia, Brazil. Several suppliers have indicated that the ametrine mines have run out. Quality material is now very difficult to obtain.
Appearance

Quartz crystals that are part amethyst, and part citrine are called ametrine. Ametrine is found naturally, and is not the result of heat treatment or any other enhancement. Bi-colored quartz is similar, but is a combination of citrine and smoky quartz, or amethyst and colorless quartz.
Enhancements

Ametrine is not enhanced.

More information on gemstone enhancements.
Gemstone Family

Ametrine is a member of the Quartz gemstone family.

Ametrine

Ametrine Quartz	$ 289.99
QAM172	19.64 ct.
	18.9x14.7mm Emerald Cut
	Medium Dark
	Vivid Yellowish Orange
	Very Slightly Included
	[N] Not enhanced.
	One of a kind.
On two thirds. The other third is medium dark, vivid bluish purple.

Ametrine Quartz	$ 654.99
QAM209	35.34 ct.
	20.2x18.0mm Emerald Cut
	Medium
	Vivid Yellowish Orange
	Loupe Clean
	[N] Not enhanced.
	One of a kind.
On two thirds. The other third is dark, vivid bluish purple.

Ametrine Quartz	$ 49.99
QAM224	6.77 ct.
	11.8x11.0mm Emerald Cut
	Medium Light
	Strong Yellowish Orange
	Very Slightly Included
	[N] Not enhanced.
	One of a kind.
With medium light, vivid violet.

Ametrine Quartz	$ 59.99
QAM225	8.42 ct.
	12.2mm Emerald Cut
	Medium Light
	Strong Yellowish Orange
	Very Slightly Included
	[N] Not enhanced.
	One of a kind.
With medium light, vivid violet.

Ametrine Quartz	$ 44.99
QAM226	5.93 ct.
	13.3x9.4mm Emerald Cut
	Medium Light
	Strong Yellowish Orange
	Very Slightly Included
	[N] Not enhanced.
	One of a kind.
With medium light, vivid violet.

Ametrine Quartz	$ 29.99
QAM228	0.97 ct., 'AA' Grade
	6.8x4.9mm Emerald Cut
	Very Light
	Moderately Strong Purple
	Loupe Clean
	[N] Not enhanced.
	One of a kind.
Bicolor with yellow citrine.

Calibrated Ametrine

Specify size, shape and quality when ordering. Prices are subject to change without notice. Actual carat weight may vary from the average carat weight listed.

AA Eye clean, medium light purple and medium light golden yellow, little or no color zoning.

Ametrine		Quality	AA
Shape	Size	Avg. Weight	Price Each
Emerald Cut	7x5mm	1.10 ct.	$ 25
	8x6mm	1.60 ct.	$ 43
	9x7mm	2.35 ct.	$ 69
	10x8mm	3.35 ct.	$ 97
	11x9mm	4.55 ct.	$ 141
	12x10mm	5.90 ct.	$ 169
	14x10mm	7.30 ct.	$ 217
	16x12mm	11.60 ct.	$ 411
	18x13mm	15.60 ct.	$ 571

			AA
Antique Cushion Cut	9x7mm	2.00 ct.	$ 59
	10x8mm	2.95 ct.	$ 82
	11x9mm	4.05 ct.	$ 112
	12x10mm	5.35 ct.	$ 157

Ametrine (Quartz) Gemstones

Hardness

Occurrence

Appearance

Enhancements

Gemstone Family