2.33 CTS OVAL SWISS BLUE TOPAZ - LOVELY!

2.33 CTS OVAL SWISS BLUE TOPAZ - LOVELY!

Variety: Topaz
Weight (cts): 1 pcs App. 2.33cts
Size (mm): 9.0 x 7.0 mm
Cut: Oval Cut
Colour: Swiss Blue
Clarity: Transparent, VVS (eye clean) with excellent face up and eye appeal.
Lustre: Excellent
Origin: Brazil
Other: Perfect colour and vivid Lustre!

Blue Topaz - a very attractive and relatively inexpensive gemstone which has, to some extent, become a substitute for Ceylon sapphire. Blue topaz does occur naturally but almost all commercially available blue topaz is produced from less attractive colours which are irradiated and heat treated to turn them blue. This treatment produces a stable colour.

There are distinct hues of blue topaz, which we presume arise because of the different treatments. The most usual colours are known as "London Blue", "Swiss Blue" and "Sky Blue". We have listed these in order from the deepest to the palest colours.

CERTIFICATE OF AUTHENTICITY INCLUDED

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