Specimen #522

Name: London Blue Topaz

Type: Gem

Locality: Brazil

Favorite? N

Fluorescent? N

Size: 1.20 x 0.90 cm

Weight: 8.61 cts

Acquired: 2007-10-18

Source: Arkenstone Auction

Label: N

Comment: London Blue Topaz has been around for approximately 30 years and made a huge splash when it was introduced on the market. This material typically starts out as colorless Topaz and is treated to create the rich blue color. This method is well known in the gem trade and is not at all frowned upon, provided that people KNOW that they''re buying a treated gem. The color in this material is what attracts collectors. There are actually very few gems in the world with this color and this gem has a great deep blue hue. The is also virtually eye clean with a perfectly calibrated "Emerald" cut. It would fit right into a pre-made setting for a piece of jewelry.

Minerals: Topaz (Al₂SiO₄(F,OH)₂)

There are 3 pictures on file

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M00522-02.jpg:

M00522-03.jpg:

London Blue Topaz, Brazil - FOV: 14.1 x 9.4 mm (2 stacked images)