• Hardness

  7.0.

• Occurrence

  Worldwide.

• Appearance

  Violet, lilac or mauve quartz is called amethyst. Amethyst is sometimes heat treated to form citrine. Amethyst crystals can form together with citrine crystals to form bi-colored quartz called ametrine. Amethyst is the birthstone of the month of February.

• Enhancements

  Occasionally heated to lighten color and/or to remove "smoky" components.

  More information on gemstone enhancements.

• Amethyst

  • Item #QAT118
    	0.43 ct. total
    	4.0mm Round Cut
    	Medium Light
    	Vivid Bluish Purple
    	Slightly Included
    	[E] Routinely enhanced.
    	Quantity Available: 8 pairs
    fair cutting
    Amethyst Quartz	$ 94.99/pair

  • Item #QAT242
    	0.71 ct.
    	7.0x5.0mm Oval Cut
    	Medium Dark
    	Vivid Bluish Purple
    	Loupe Clean
    	[E] Routinely enhanced.
    	one of a kind
    Amethyst Quartz	$ 19.99/pair

  • Item #QAT296
    	0.14 ct. total
    	4.0x2.0mm Marquise Cut
    	Light
    	Strong Bluish Purple
    	Loupe Clean
    	[N] Not enhanced.
    	Quantity Available: 5 pairs
    Amethyst Quartz	$ 20.99/pair

  • Item #QAT203
    	4.97 ct.
    	11.9x9.7mm Emerald Cut
    	Medium
    	Vivid Bluish Purple
    	Very Slightly Included
    	[E] Routinely enhanced.
    	one of a kind
    Slight color zoning.
    Amethyst Quartz	$ 129.99

  • Item #QAT213
    	0.42 ct. total
    	4.0mm Heart Shape
    	Medium
    	Vivid Bluish Purple
    	Slightly Included
    	[E] Routinely enhanced.
    	only one pair available
    Amethyst Quartz	$ 9.99/pair

  • Item #QAT214
    	0.81 ct. total
    	5.0mm Heart Shape
    	Medium
    	Vivid Bluish Purple
    	Very Very Slightly Included
    	[N] Not enhanced.
    	Quantity Available: 3 pairs
    Amethyst Quartz	$ 29.99/pair

  • Item #QAT305
    	7.03 ct.
    	12.0mm Hexagon Cut
    	Medium Dark
    	Vivid Violet
    	Loupe Clean
    	[E] Routinely enhanced.
    	one of a kind
    Amethyst Quartz	$ 289.99

  • Item #QAT318
    	33.68 ct.
    	27.4x14.2mm Briolette
    	Medium Dark
    	Strong Bluish Purple
    	Slightly Included
    	[N] Not enhanced.
    	one of a kind
    Pendant
    Amethyst Quartz	$ 7.99

• Calibrated Amethyst

  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.

  • AAA Dark, clean, little or no color zoning, good cut.
  • AA Medium dark, clean, little or no color zoning, good cut.
  • A Medium light, clean, little or no color zoning, good cut.
  • B Light purple, eye clean to slightly included, little or no color zoning, good cut.
  • A+ Medium purple, eye clean to slightly included, little or no color zoning, good cut.

  Amethyst		Quality	AAA	AA	A+	A	B
  Shape	Size	Avg. Weight	Price Each
  Round	1.5mm	0.01		$ 5		$ 3
  	1.75mm	0.02		$ 5		$ 3
  	2mm	0.02		$ 5		$ 3
  	2.25mm	0.03		$ 6		$ 3
  	2.5mm	0.04		$ 6		$ 3
  	2.75mm	0.08		$ 6	$ 4	$ 3
  	3mm	0.11	$ 8	$ 6	$ 5	$ 3
  	3.25mm	0.10		$ 7	$ 5	$ 4	$ 3
  	3.5mm	0.16	$ 9	$ 7	$ 5	$ 4	$ 3
  	3.75mm	0.19		$ 8		$ 5	$ 3
  	4mm	0.24	$ 10	$ 8	$ 7	$ 5	$ 4
  	4.25mm	0.28				$ 5
  	4.5mm	0.33	$ 11	$ 9	$ 10	$ 5	$ 4
  	5mm	0.43	$ 18	$ 14	$ 12	$ 6	$ 5
  	5.5mm	0.47	$ 24	$ 19	$ 14	$ 9	$ 5
  	6mm	0.78	$ 31	$ 23	$ 19	$ 11	$ 7
  	6.5mm	1.03	$ 42	$ 35		$ 13
  	7mm	1.24	$ 49	$ 39	$ 28	$ 14
  	8mm	1.78	$ 78	$ 64	$ 44	$ 20
  	9mm	2.73	$ 118	$ 98	$ 64	$ 36
  	10mm	2.69	$ 144	$ 121	$ 76	$ 56
  Oval	5x3mm	0.22	$ 10	$ 9		$ 5
  	6x4mm	0.45	$ 16	$ 13		$ 5
  	7x5mm	0.71	$ 23	$ 18		$ 8
  	8x6mm	1.18	$ 42	$ 33		$ 14
  	9x7mm	1.70	$ 64	$ 49		$ 20
  	10x8mm	2.50	$ 85	$ 64		$ 30
  	11x9mm	3.15	$ 112	$ 84		$ 39
  	12x10mm	4.46	$ 190	$ 144		$ 71
  	14x10mm	5.47	$ 259	$ 213		$ 95
  	14x12mm	7.18	$ 316	$ 259		$ 116
  	16x12mm	9.06	$ 578	$ 437		$ 151
  	18x13mm	13.24	$ 736	$ 557
  Pear	5x3mm	0.20	$ 10	$ 9		$ 5
  	6x4mm	0.34	$ 14	$ 11		$ 5
  	7x5mm	0.56	$ 22	$ 18		$ 7
  	8x5mm	0.75	$ 25	$ 19		$ 9
  	8x6mm	1.05	$ 32	$ 24		$ 11
  	9x6mm	1.13	$ 41	$ 31		$ 13
  	10x7mm	1.75	$ 53	$ 41		$ 17
  	10x8mm	2.04	$ 74	$ 59		$ 28
  	12x8mm	2.29	$ 105	$ 81		$ 39
  	13x9mm	3.54	$ 124
  	14x9mm	3.28	$ 181	$ 141		$ 58
  	14x10mm	4.42		$ 180		$ 76
  	15x10mm	5.53	$ 251	$ 193		$ 81
  Marquise	4x2mm	0.12	$ 11	$ 9		$ 5
  	5x2.5mm	0.15	$ 11	$ 9		$ 5
  	5x3mm	0.15	$ 14	$ 10		$ 6
  	6x3mm	0.19	$ 16	$ 12		$ 6
  	7x3.5mm	0.37	$ 20	$ 16		$ 7
  	8x4mm	0.38	$ 31	$ 25		$ 9
  	9x4.5mm	0.56		$ 31
  	10x5mm	0.75	$ 42	$ 33		$ 14
  	12x6mm	1.50	$ 65	$ 49		$ 19
  	14x7mm	2.32	$ 100	$ 78		$ 33
  	15x7mm	2.47	$ 122	$ 93		$ 43
  Emerald	5x3mm	0.29		$ 11		$ 7
  	6x4mm	0.56	$ 31	$ 23		$ 10
  	7x5mm	0.92	$ 38	$ 33		$ 13
  	8x6mm	1.42	$ 58	$ 52		$ 20
  	9x7mm	2.08	$ 86	$ 71		$ 27
  	10x8mm	3.13	$ 168	$ 142		$ 44
  	11x9mm	4.28	$ 261	$ 215		$ 58
  	12x10mm	3.76	$ 428	$ 357		$ 92
  	14x10mm	7.17		$ 457		$ 127
  	16x12mm	11.71		$ 662		$ 184
  Square	3mm	0.16		$ 9		$ 5
  	3.5mm	0.21		$ 11		$ 6
  	3.75mm	0.25		$ 13		$ 6
  	4mm	0.29	$ 18	$ 15		$ 7
  	5mm	0.55	$ 35	$ 26		$ 10
  	6mm	1.08	$ 50	$ 37		$ 15
  	7mm	1.54	$ 108	$ 55		$ 23
  	8mm	2.26		$ 102		$ 39
  	9mm	3.07				$ 62
  Heart	4mm	0.22		$ 9		$ 5
  	5mm	0.38	$ 22	$ 18		$ 6
  	6mm	0.72	$ 32	$ 26		$ 12
  	7mm	1.05	$ 49	$ 42		$ 16
  	8mm	1.54	$ 84	$ 73		$ 24
  	9mm	2.24	$ 106	$ 91		$ 35
  	10mm	3.27	$ 152	$ 116		$ 53
  	11mm	3.89	$ 271
  	12mm	4.89	$ 354
  	13mm	6.54	$ 453
  Trillion	4mm	0.21	$ 18	$ 15		$ 6
  	5mm	0.48	$ 23	$ 18		$ 7
  	6mm	0.38	$ 31	$ 23		$ 9
  	7mm	1.13	$ 42	$ 33		$ 13
  	8mm	1.51	$ 83	$ 63		$ 31
  	9mm	1.88	$ 100	$ 78		$ 31
  	10mm	2.26	$ 147	$ 112		$ 48
  	11mm	3.01	$ 202
  	13mm	5.50	$ 410
  Straight Baguette	4x2mm	0.11		$ 11		$ 6
  	5x2mm	~		$ 14		$ 7
  	5x3mm	~		$ 14		$ 7
  	8x4mm	0.76		$ 33		$ 17
  Half Moon	10x7mm	2.22		$ 94		$ 51
  Princess	3.5mm	0.19		$ 13		$ 8
  	4mm	0.27		$ 15		$ 9
  	4.5mm	0.40		$ 18		$ 10
  	5mm	0.52		$ 28		$ 13
  	5.5mm	0.70		$ 30		$ 15
  	6mm	0.87		$ 35		$ 19
  	6.5mm	1.22		$ 39		$ 23
  	8mm	2.34		$ 119		$ 47
  Cabochon, Round	3mm	0.22		$ 3
  	3.5mm	0.33		$ 4
  	4mm	0.56		$ 6
  	4.5mm	0.35		$ 9
  	5mm	0.51		$ 12
  	5.5mm	0.70		$ 14
  	6mm	0.95		$ 22
  	7mm	1.42		$ 28
  	8mm	2.05		$ 58
  	12mm	7.49		$ 211
  Cabochon, Oval	5x3mm	0.24		$ 8
  	6x4mm	0.46		$ 13
  	7x5mm	0.82		$ 21
  	8x6mm	1.20		$ 23
  	9x7mm	1.87		$ 61
  	10x8mm	2.63		$ 78
  	11x9mm	3.59		$ 100
  	12x10mm	4.70		$ 137
  	14x10mm	5.54		$ 178
  Cabochon, Pear	5x3mm	0.25		$ 7
  	6x4mm	0.35		$ 11
  	7x5mm	0.65		$ 17
  	8x5mm	0.73		$ 19
  	8x6mm	1.07		$ 28
  	9x6mm	1.16		$ 36
  	10x7mm	1.86		$ 46
  Cabochon, Square	3mm	~		$ 4
  	4mm	~		$ 10
  	5mm	0.71		$ 18
  	6mm	1.22		$ 35
  	7mm	~		$ 50
  	8mm	3.44		$ 89
  Cabochon, Heart	4mm	0.17		$ 5
  	5mm	0.26		$ 9
  	6mm	0.62		$ 15
  	7mm	~		$ 24
  	8mm	1.84		$ 34
  Antique	5mm	~		$ 18		$ 9
  	6mm	~		$ 26		$ 13
  Antique Cushion	8x6mm	1.41		$ 43		$ 26
  	9x7mm	2.01		$ 64		$ 36
  	10x8mm	2.59		$ 91		$ 53
  Hexagon	8mm	1.32		$ 97		$ 42
  	9mm	1.88		$ 154		$ 75
  	10mm	2.58		$ 207		$ 109
  	12mm	6.95	$ 464	$ 360		$ 165
  Oval, Checkerboard Top	5.5x4mm	~				$ 7
  	6x4mm	~		$ 16		$ 7
  	8x6mm	~	$ 47	$ 40		$ 20
  	9x7mm	~		$ 58		$ 34
  	10x8mm	2.32		$ 108
  	12x10mm	4.29		$ 216
  Roll Top	10x8mm	2.73				$ 94
  	14x10mm	5.61				$ 194
  Round, Checkerboard Top	7mm	~		$ 44		$ 22
  	8mm	~		$ 67		$ 36
  Trillion, Checkerboard Top	8mm	~				$ 31
  Antique, Checkerboard Top	5mm	~		$ 19		$ 11
  	6mm	~		$ 28		$ 20
  	8mm	~		$ 85		$ 46
  	10mm	~		$ 169		$ 84
  Antique Cushion, Checkrbrd Top	8x6mm	~		$ 49		$ 30
  	9x7mm	~		$ 65		$ 39
  	10x8mm	~		$ 92		$ 56

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Last updated May 18, 2010
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