EMERALD ROUGH FROM COLUMBIA 2.15CTS [S377]

Item Description Pictures Bidding History Comments

About This Auction		About This Seller: sedagems
Minimum Bid (USD)		Feedback Rating	100.00% Positive
Current Bid (USD)	0.00	Member Since	July 19, 2007 in Australia
Bid Increment	1.00	View feedback Send seller message View 907 other auctions from this seller More about this seller
Bids Placed	0
Starting Bid (USD)	34.00
Reserve Price (USD)	none
Starts	July 5, 2008 8:05 PM
Ends	July 8, 2008 7:57 PM	Basic Shipping Information
Auction Category	emerald emerald rough	Shipping Cost	3.00 paid by buyer
Auction ID	22257	Shipping Insurance (optional)	7.00
Ends In 2 days, 11 hours, 52 minutes, 25 seconds
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EMERALD ROUGH FROM COLUMBIA 2.15CTS [S377]

Description

EMERALD

This Emerald rough was mined on columbia and it is now ready for facting or cabbing. Emeralds are a variety of the mineral beryl (Be₃Al₂(SiO₃)₆,) colored green by trace amounts of chromium and sometimes vanadium.

Emeralds come in many shades of green and bluish green. There is a wide spectrum of clarity, dependent on the inclusions and fractures in the crystal. Clear stones with dark yet vibrant color command the highest prices.

Most emeralds are oiled as part of the post lapidary process, in order to improve their clarity. Cedar oil, having a similar refractive index, is often used in this generally accepted practice. The amount of oil entering an emerald microfissure is roughly equivalent to the size of a period (full stop) in print. The use of green-tinted oil is generally not considered acceptable by the gem trade.

This rough is natural but it has been oiled.

WEIGHT: 2.15 CTS APPROX.

SIZE: 10 x 6 x 8 MM APPROX.

AS WITH ALL OUR STOCK YOU MAY RETURN IT FOR A FULL REFUND IF NOT PLEASED PROVIDED IT IS NOT TOUCHED IN ANY WAY.