Zambia Mined 3.15 Natural Green Emerald ~ G
- 存货单位
- 尺寸(毫米)
- 10.550 x 7.950 x 5.500mm
- 重量 (cts)
- 3.150
- Shape
- Emerald
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
Emerald :
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and sometimes vanadium.[2] Beryl has a hardness of 7.5–8 on the Mohs scale.[2] Most emeralds are highly included,[3] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.
Clarity :
Emeralds tend to have numerous inclusions and surface-breaking fissures. Unlike diamonds, where the loupe standard, i.e. 10× magnification, is used to grade clarity, emeralds are graded by eye. Thus, if an emerald has no visible inclusions to the eye (assuming normal visual acuity) it is considered flawless. Stones that lack surface breaking fissures are extremely rare and therefore almost all emeralds are treated ("oiled", see below) to enhance the apparent clarity. The inclusions and fissures within an emerald are sometime described as jardin (French for garden), because of their mossy appearance.[9] Imperfections are unique for each emerald and can be used to identify a particular stone. Eye-clean stones of a vivid primary green hue (as described above), with no more than 15% of any secondary hue or combination (either blue or yellow) of a medium-dark tone, command the highest prices.[5] The relative non-uniformity motivates the cutting of emeralds in cabochon form, rather than faceted shapes. Faceted emeralds are most commonly given an oval cut, or the signature emerald cut, a rectangular cut with facets around the top edge.
Treatment None
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- 存货单位
- 尺寸(毫米)
- 10.550 x 7.950 x 5.500 mm
- 重量 (cts)
- 3.150
- Shape
- Emerald
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
Emerald :
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and sometimes vanadium.[2] Beryl has a hardness of 7.5–8 on the Mohs scale.[2] Most emeralds are highly included,[3] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.
Clarity :
Emeralds tend to have numerous inclusions and surface-breaking fissures. Unlike diamonds, where the loupe standard, i.e. 10× magnification, is used to grade clarity, emeralds are graded by eye. Thus, if an emerald has no visible inclusions to the eye (assuming normal visual acuity) it is considered flawless. Stones that lack surface breaking fissures are extremely rare and therefore almost all emeralds are treated ("oiled", see below) to enhance the apparent clarity. The inclusions and fissures within an emerald are sometime described as jardin (French for garden), because of their mossy appearance.[9] Imperfections are unique for each emerald and can be used to identify a particular stone. Eye-clean stones of a vivid primary green hue (as described above), with no more than 15% of any secondary hue or combination (either blue or yellow) of a medium-dark tone, command the highest prices.[5] The relative non-uniformity motivates the cutting of emeralds in cabochon form, rather than faceted shapes. Faceted emeralds are most commonly given an oval cut, or the signature emerald cut, a rectangular cut with facets around the top edge.
Treatment None
Feel free to to “make an offer” on our other items :)
We Accept Payments through
PaypalYou May Also Like
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Standard Shipping - Tracked | $15.00 / :几天天 | $15.00 / :几天天 |
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Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $15.00
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DHL | $30.00 / :几天天 | $30.00 / :几天天 |
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DHL 对包含 2 或更多商品的订单折扣为 $30.00
世界其他地区
DHL 对包含 2 或更多商品的订单折扣为 $30.00
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积极的
Beautiful Amethyst!
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消极的
Cheated me I haven't received the stone its been almost a month now inspite of the delivery had to be in the same city.