15.78 CTS AFRICAN RUBY - B GRADE STONE [RUB20]
- 存货单位
- 尺寸(毫米)
- 12.000 x 12.000 x 9.000mm
- 重量 (cts)
- Certified Gemstones
- 不
- 颜色
-
Weight | 15.78 cts |
Clarity | SI |
Size | 12 x 12 x 9 mm |
Hardeness | 9 |
Origin | Mozambique |
Treatment | Clarity Enhanced |
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
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.
- 存货单位
- 尺寸(毫米)
- 12.000 x 12.000 x 9.000 mm
- 重量 (cts)
- Certified Gemstones
- 不
- 颜色
-
Weight | 15.78 cts |
Clarity | SI |
Size | 12 x 12 x 9 mm |
Hardeness | 9 |
Origin | Mozambique |
Treatment | Clarity Enhanced |
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
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.
运输商 | 运送至:国家 | 运送到世界其他地区 |
---|---|---|
FedEx | $12.00 / :几天天 | $39.00 / :几天天 |
:国家
FedEx 对包含 2 或更多商品的订单折扣为 $12.00
世界其他地区
FedEx 对包含 2 或更多商品的订单折扣为 $39.00
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||
Registered Shipping | $9.00 / :几天天 | $16.00 / :几天天 |
:国家
Registered Shipping 对包含 2 或更多商品的订单折扣为 $9.00
世界其他地区
Registered Shipping 对包含 2 或更多商品的订单折扣为 $16.00
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积极的
Great and clear sapphire, beautiful cut ! Great packaging
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消极的
Not as pictured and underweight by 1.52ct.
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积极的
As pictured but unweight by .14 ct, will accept.
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积极的
AAAA+++ Very Happy! Just like the pic.