[SG] 6 STAR BLACK SAPPHIRE 3.10 CTS [S1541 ]

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About This Seller: sedagems
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Feedback Rating 100.00% Positive
Current Bid (USD) 0.00 Member Since July 19, 2007 in Australia
Bid Increment 1.00
Bids Placed 0
Starting Bid (USD) 19.99
Reserve Price (USD) none
Starts November 29, 2008 8:05 PM
Ends December 2, 2008 8:00 PM Basic Shipping Information
Auction Category Sapphire Gemstones > Stones Shipping Cost 0.00 paid by buyer
Auction ID 43277 Shipping Insurance (optional) 7.00

Ends in 3 hours 24 minutes

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Description

 BLACK  STAR SAPPHIRE

 A well domed 6 star  sapphire stone ready for setting. The photo was taken in the sun so it will give you a idea of what to expect when you wear it.This is a picture of the actual stone you are bidding on.

Mined in india

Hardness  9

Treatments heated

weight 3.10  cts ap

size 8x 7x5 mm app

Sapphires and rubies are formed at great depth in the earth's mantle or the lowest part of the crust Although blue is considered the normal color for sapphires, they can be found across a full range of spectral colors as well as brown, colorless, grey and black. Those other than blue in color are considered fancy color sapphires. A star sapphire is a type of sapphire that exhibits a star-like phenomenon known as asterism. Star sapphires contain intersecting needle-like inclusions (often the mineral rutile, a mineral composed primarily of titanium dioxide ) that cause the appearance of a six-rayed 'star'-shaped pattern when viewed with a single overhead light source.

The value of a star sapphire depends not only on the carat weight of the stone but also the body color, visibility and intensity of the asterism.


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A FULL REFUND  IF NOT PLEASED 

MEMBER OF THE INTERNATIONAL GEMSTONE ASOCIATION 

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

 

6 mm = 1/4 inch (Approx)

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