2.75 CTS VVS BLUE TOPAZ STONE CUSHION CUT [S6180]

Item Information

Dimensions (mm) 9 x 7 x 5mm
Weight (carats) 0 carats
Certified Gemstone

BLUE TOPAZ STONE 

This is a  natural Topaz stone ready for setting.They are very well cut in a cushion shape and faceted.Treated stone with rich blue colour.

Grading VVS

Colour London blue

High luster

Weight 2.75 cts

Size  9 x 7 x 5 mm app

The stone was irradated in the usa according to current guide lines-It is a permant treatment.
 
Note: We have good quality blue topaz  TREATED rough at our sister site 

Topaz is commonly associated with silicic igneous rocks of the granite and rhyolite type. It typically crystallizes in granitic pegmatites or in vapor cavities in rhyolite lava flows.

 

Pure topaz is colorless and transparent but is usually tinted by impurities; typical topaz is wine, straw yellow, pale gray or reddish-orange. It can also be made white, pale green, blue, gold, pink (rare), reddish-yellow or opaque to transparent/translucent.

Orange topaz, also known as precious topaz, is the traditional November birthstone.

Imperial topaz is yellow, pink (rare, if natural) or pink-orange. Brazilian Imperial Topaz can often have a beautiful bright yellow to deep golden brown hue, sometimes even violet. Many brown or pale topazes are treated to make them bright yellow, gold, pink or violet colored. This variety is the most sought-after and highly valued among the topaz gems

T

 

Treatments-When treated, yellow topaz often becomes reddish-pink. Only stones of a brown-yellow color yield the pink; the pale yellow ones usually turn white. The pink color is stable. Topaz can also be irradiated, turning the stone blue, ranging from a light pure color to very dark almost electric blue

AS WITH ALL OUR STOCK YOU MAY RETURN IT FOR A FULL REFUND  IF NOT PLEASED .

 

 

Type 1 Gemstones
The following gemstones are typically inclusion free, even minor inclusions detract from their value.
Diamond, Amethyst, Beryls(Aquamarine,Morganite), Citrine, Smoky Quartz, topaz, Chrysoberyl, Kunzite, Tanzanite, green Tourmaline, and Blue Zircon
IF Internally flawless under extreme magnification (Very rare)
F Flawless
VVS Minute inclusions under 10x; invisible to the unaided eye
VS Minor inclusions under 10x; usually invisible to the unaided eye
SI1 Noticeable inclusions under 10x; usually visible to the unaided eye
SI2 Noticeable inclusions under 10x; usually quite visible to the unaided eye
I1 prominent- moderate affect on appearance or durability
I2 prominent - severe affect on appearance or durability
I3 prominent- severe affect on beauty, transparency or durability
Type 2 Gemstones
Gemstones that normally have small inclusions that do not detract from value.
Alexandrite, Andalusite, Iolite, Peridot, Rhodolite, Ruby, Sapphire, Spinel, Tourmaline, Garnet, Amethyst, Red Zircon, Tsavorite; Blue, Orange, Purple, Fluorite.Yellow and Parti-colored Tourmaline
F Flawless
VVS Minor inclusions under 10x; usually invisible to the unaided eye
VS Noticeable inclusions under 10x; often invisible to the unaided eye
SI1 Obvious inclusions under 10x; visible to the unaided eye
SI2 Obvious inclusions under 10x; very apparent to the unaided eye
I1 prominent - moderate affect on appearance or durability
I2 prominent - severe affect on appearance or durability
I3 prominent - severe affect on beauty, transparency or durability
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1 bid placed so far
$12.00 jdschn
19th Aug 2013 9:29am PDT
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Pricing & Details

Bid Increment $1.00
Starting Bid $12.00
Auction ID 247010
Watchers 0 watching
Viewed 292 times
Starts 16th Aug 2013 6:02pm PDT
Ends 19th Aug 2013 6:00pm PDT

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Seller Details

Visit sedagems Store
  • sedagems
  • NSW, Australia
  • Registered 19th Jul 2007
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