• Hardness

  8.0.

• Occurrence

  Brazil, U.S., Sri Lanka (Ceylon), Myanmar (Burma), former USSR, Australia, Pakistan, Mexico, Tasmania, Japan, Africa. Topaz and citrine are the birthstones of the month of November.

• Appearance

  Yellow topaz is sometimes called "precious topaz" to distinguish it from the names "gold" and "madeiria topaz", which are in fact citrine (quartz). Yellow topaz is sometimes heat treated to make it look pink. The term "imperial topaz" is used by ethical jewelers to refer to topaz that is reddish orange of medium tone and higher saturation.

• Enhancements

  Yellow/Orange topaz is occasionally irradiated to intensify color. Pink/Red topaz is usually heat treated chromium bearing pinkish-brown to orange stones. Brown topaz is not enhanced. Green and blue topaz are usually irradiated to produce the desired color.

  More information on gemstone enhancements.

• American Blue Topaz

• Blue Topaz

• Green Topaz

• Hot Pink Topaz

• London Blue Topaz

• Mystic Fire Topaz

• Peacock Topaz

• Rainbow Topaz

• Silver Topaz

• Sky Blue Topaz

• Swiss Blue Topaz

• Tanzanite Topaz

• Teal Topaz

• Topaz (Precious Topaz)

  • Item #TPZ402
    	7.57 ct.
    	13.5x9.5mm Antique Cushion Cut
    	Medium
    	Vivid Yellowish Orange
    	Loupe Clean
    	[N] Not enhanced.
    	one of a kind
    Imperial Topaz	$ 2,339.99

• Calibrated Topaz

  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 Eye clean, medium tone, strong golden with peach tones, good cut..
  • AA Eye clean, light to medium golden to slight peach, good cut..
  • A Eye clean, light peach to light golden yellow, good cut..
  • Imperial Eye clean, peach to pink color, good cut..

  Topaz		Quality	AAA	AA	A	Imperial
  Shape	Size	Avg. Weight	Price Each
  Round Brilliant	3mm	0.10			$ 34	$ 193
  	3.5mm	0.16		$ 101		$ 256
  	4mm	0.24		$ 135	$ 67	$ 338
  	4.5mm	0.34			$ 82	$ 431
  	5mm	0.47				$ 968
  	5.5mm	0.62	$ 830
  Oval	5x3mm	0.25	$ 32	$ 28	$ 16	$ 73
  	6x4mm	0.50	$ 104	$ 72	$ 40	$ 185
  	7x5mm	0.99	$ 363	$ 221	$ 80
  	8x6mm	1.57	$ 726	$ 416	$ 180
  	9x7mm	2.47		$ 1,116	$ 396
  	10x8mm	3.11			$ 706
  Pear	5x3mm	0.20	$ 28	$ 25	$ 14	$ 65
  	6x4mm	0.46	$ 81	$ 54	$ 29	$ 142
  	7x5mm	0.75		$ 153	$ 66
  	8x5mm	1.00	$ 481	$ 295	$ 96
  	8x6mm	1.34		$ 395	$ 129
  	9x6mm	1.50		$ 630	$ 209
  Marquise	5x2.5mm	0.16	$ 30	$ 24	$ 18	$ 51
  	6x3mm	0.25	$ 45	$ 35	$ 24	$ 81
  	7x3.5mm	0.38	$ 112	$ 66	$ 35	$ 152
  	8x4mm	0.50	$ 132	$ 71	$ 50	$ 176
  	9x4.5mm	0.75	$ 386	$ 245	$ 124
  	10x5mm	1.00		$ 526	$ 234
  	12x6mm	1.98		$ 1,073	$ 484
  Emerald	5x3mm	0.25	$ 72	$ 55		$ 131
  	6x4mm	0.53	$ 189	$ 130	$ 74
  	7x5mm	0.99		$ 316
  	8x6mm	1.57		$ 740
  Trillion	4mm	0.19		$ 30	$ 16
  	4.5mm	0.33	$ 66	$ 43	$ 23
  	5mm	0.47	$ 82	$ 54	$ 25
  	5.5mm	0.59	$ 215	$ 133	$ 57
  	6mm	0.76	$ 397	$ 256	$ 85
  	6.5mm	1.03		$ 420
  	7mm	1.50			$ 154
  Straight Baguette	4x2mm	0.20	$ 24	$ 21	$ 12
  	5x2mm	~	$ 45	$ 32	$ 16
  	5x3mm	~	$ 86	$ 60	$ 31
  	6x3mm	~	$ 124	$ 83	$ 42	$ 203
  	7x3.5mm	~	$ 184	$ 135	$ 70
  Princess	2.5mm	0.10	$ 43	$ 27	$ 15
  	3mm	0.16		$ 42	$ 24
  	3.5mm	0.26		$ 66	$ 33
  	4mm	0.37			$ 45
  	5mm	0.70				$ 748
  	5.5mm	0.93		$ 387	$ 159

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Last updated May 18, 2010
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