• Hardness

  7.0.

• 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.

• Ametrine

  • Item #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	$ 289.99

  • Item #QAM202
    	31.99 ct.
    	18.4x16.7mm Emerald Cut
    	Dark
    	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	$ 709.99

  • Item #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	$ 654.99

• 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	7x5mm	0.74	$ 23
  	8x6mm	1.18	$ 40
  	9x7mm	1.86	$ 66
  	10x8mm	2.26	$ 95
  	11x9mm	3.01	$ 146
  	12x10mm	3.76	$ 182
  	14x10mm	7.17	$ 245
  	16x12mm	11.71	$ 465
  	18x13mm	15.24	$ 647
  Antique Cushion	9x7mm	2.00	$ 55

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Last updated May 26, 2010
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