Item Information

Dimensions (mm) 9 x 7 x 5mm
Weight (carats) not provided
Certified Gemstone
Filled Cavities or Fissure/Cobalt
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Birthstone for  July


This is a Ruby that was mined in Madagscar showing a deep red colour.


Mohs scale 9

  Weight 3.18 cts app

Size 9 x 7 x 5 mm app

Fissures cavity  filled treatment



A Ruby is a pink to blood-red gemstone  a variety of the mineral corundum (aluminium oxide]. The common red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem-quality corundum are called sapphires. Prices of rubies are primarily determined by color. The brightest and best "red" called pigeon blood-red, commands a huge premium over other rubies of similar quality. After color follows clarity: similar to diamonds, a clear stone will command a premium, but a ruby without any needle-like rutile inclusions will indicate that the stone has been treated one way or another. Cut and carat (size) also determine the price


Unless a ruby has a certificate as natural all Rubys should be considered to have had some lead glass treatment.This is usually stated as 'fissure cavity filled treatment' This treatment infuses leaded glass to fill in cracks and fissures which improves the appearance of the stone.In most cases the durabilty is not as strong as a natural stone.


4d 4h 18m 39s

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Pricing & Details

Bid Increment $1.00
Starting Bid $44.00
Auction ID 268427
Watchers 3 watching
Viewed 718 times
Starts 20th Oct 2016 9:02pm PDT
Ends 28th Oct 2016 9:00pm PDT

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