• 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

• Imperial Topaz

• London Blue Topaz

• Mystic Fire Topaz

• Peacock Topaz

• Rainbow Topaz

• Silver Topaz

• Sky Blue Topaz

• Swiss Blue Topaz

• Teal 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 Gemstones
Calibrated Gemstones by Shape

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, light to medium golden to slight peach, good cut..
• A Eye clean, light peach to light golden yellow, good cut..

Topaz		Quality	AA	A
Shape	Size	Avg. Weight	Price Each
Round	2mm	0.04	$ 10
	3mm	0.13	$ 25
	3.25mm	0.16		$ 16
	3.5mm	0.21	$ 36
Oval	6x4mm	0.51	$ 72
	7x5mm	1.00	$ 188
	8x6mm	1.50	$ 354
	9x7mm	2.25	$ 741
	10x8mm	3.25	$ 1,243
Pear	6x4mm	0.48	$ 62
	7x5mm	0.75	$ 139
	8x5mm	0.97	$ 251
	9x6mm	1.45	$ 535
Marquise	5x2.5mm	0.17	$ 21
	6x3mm	0.30	$ 33
	7x3.5mm	0.46	$ 60
	8x4mm	0.60	$ 65
	9x4.5mm	0.85	$ 168
	10x5mm	1.25	$ 338
Emerald	5x3mm	0.34	$ 56
	6x4mm	0.74	$ 122
	7x5mm	1.15	$ 268
	8x6mm	1.85	$ 629
	9x7mm	2.70	$ 1,047
Trillion	6.5mm	1.00	$ 357
Straight Baguette	4x2mm	0.15	$ 22
	5x2mm	0.20	$ 34
	5x2.5mm	0.25	$ 42
	5x3mm	0.38	$ 62
	6x3mm	0.46	$ 83
	7x3.5mm	0.75	$ 126
	8x4mm	1.00	$ 226
Princess	2mm	0.05	$ 15
	2.5mm	0.11	$ 29
	3mm	0.17	$ 44
	3.5mm	0.30	$ 67
	4mm	0.40	$ 114
	4.5mm	0.60	$ 142
	5mm	0.82	$ 246
	5.5mm	1.10	$ 329

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Last updated April 2, 2012
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