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86 CTS RUBY ROUGH LARGE-COMPSOITE[F1001 ]4
- SKU
- Afmetingen (mm)
- 30.000 x 22.000 x 11.000mm
- Gewicht (cts)
- 86.000
- Kleuren
-
RUBY ROUGH
Birthstone for July
These are two pieces which have been joined together by a liquid glass. The specimen is heat treated /glass filled showing stunning colours of red with a purplish tinge.This specimen can be cut into a large specimen or it is ideal as a carving piece.
Mohs scale 9
Weight 86.05 cts
Size 30 x 22 x 11 mm app
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
TREATMENTS
The most common treatment is the application of heat. Most if not all rubies at the lower end of the market are heat treated on the rough stones to improve color, remove purple tinge, blue patches and silk. These heat treatments typically occur around temperatures of 1800°C (3300°F).Some rubies undergo a process of low tube heat, when the stone is heated over charcoal of a temperature of about 1300°C (2400°F) for 20 to 30 minutes. The silk is only partially broken as the color is improved.
- SKU
- Afmetingen (mm)
- 30.000 x 22.000 x 11.000 mm
- Gewicht (cts)
- 86.000
- Kleuren
-
RUBY ROUGH
Birthstone for July
These are two pieces which have been joined together by a liquid glass. The specimen is heat treated /glass filled showing stunning colours of red with a purplish tinge.This specimen can be cut into a large specimen or it is ideal as a carving piece.
Mohs scale 9
Weight 86.05 cts
Size 30 x 22 x 11 mm app
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
TREATMENTS
The most common treatment is the application of heat. Most if not all rubies at the lower end of the market are heat treated on the rough stones to improve color, remove purple tinge, blue patches and silk. These heat treatments typically occur around temperatures of 1800°C (3300°F).Some rubies undergo a process of low tube heat, when the stone is heated over charcoal of a temperature of about 1300°C (2400°F) for 20 to 30 minutes. The silk is only partially broken as the color is improved.
Verzend provider | Verzending naar:land | Verzending naar de rest van de wereld |
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FedEx | $12.00 / :dagen dagen | $39.00 / :dagen dagen |
:land
FedEx wordt verdisconteerd tot $12.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
FedEx wordt verdisconteerd tot $39.00 bij bestellingen met 2 of meer artikelen
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||
Registered Shipping | $9.00 / :dagen dagen | $16.00 / :dagen dagen |
:land
Registered Shipping wordt verdisconteerd tot $9.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
Registered Shipping wordt verdisconteerd tot $16.00 bij bestellingen met 2 of meer artikelen
|
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Positief
huge and beautiful stone
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Positief
Paid and shipped - no feedback left after 100 days
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Positief
Paid and shipped - no feedback left after 100 days
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Positief
Paid and shipped - no feedback left after 100 days
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Positief
A+ seller great looking piece
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Positief
Paid and shipped - no feedback left after 100 days
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