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39.6 CTS SHELL CARVED FLOWER BEAD 11434
- 存货单位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- 类型
- Bead
- 颜色
-
DESCRIPTION: |
|
Gem Type:NATURAL SHELL |
Weight (CARATS):39.6 CTS
|
Color:IVORY TINT |
SIZE (mm): 30 X 3 MM
|
Additional Comments: PIECES- 1 STRAND/ AS IN PHOTO
ARTIFICIAL BLACK DYEING WITH SILVER SALT: Treatment with silver nitrate solutions (AgNO3) is applied since the nineteen thirties to Japanese Akoya cultured pearls. The method was used at the end of the 19th century in the mother-of-pearl industry and natural pearls were also dyed this way. This means that the nucleus remains white, while the outer pearly layer takes on the dark color. The deposition of silver seems to concentrate in the conchioline layer which is often present between the nucleus and the pearly layer. The distribution of silver gets less towards the surface of the pearl. In the case of undrilled pearls diffusion of silver oxide starts however from the surface while in the case of drilled pearls the silver solution will more directly find its way to the border area between nucleus and outer pearly layer. Other Coloration
7 Pearl Value Factors:
|
Type 1 Gemstones |
The following gemstones are typically inclusion free, even minor inclusions detract from their value. |
Diamond, Amethyst, Beryls(Aquamarine,Morganite), Citrine, Smoky Quartz, topaz, Chrysoberyl, Kunzite, Tanzanite, green Tourmaline, and Blue Zircon |
IF | Internally flawless under extreme magnification (Very rare) |
F | Flawless |
VVS | Minute inclusions under 10x; invisible to the unaided eye |
VS | Minor inclusions under 10x; usually invisible to the unaided eye |
SI1 | Noticeable inclusions under 10x; usually visible to the unaided eye |
SI2 | Noticeable inclusions under 10x; usually quite visible to the unaided eye |
I1 | prominent- moderate affect on appearance or durability |
I2 | prominent - severe affect on appearance or durability |
I3 | prominent- severe affect on beauty, transparency or durability |
Type 2 Gemstones |
Gemstones that normally have small inclusions that do not detract from value. |
Alexandrite, Andalusite, Iolite, Peridot, Rhodolite, Ruby, Sapphire, Spinel, Tourmaline, Garnet, Amethyst, Red Zircon, Tsavorite; Blue, Orange, Purple, Yellow and Parti-colored Tourmaline |
F | Flawless |
VVS | Minor inclusions under 10x; usually invisible to the unaided eye |
VS | Noticeable inclusions under 10x; often invisible to the unaided eye |
SI1 | Obvious inclusions under 10x; visible to the unaided eye |
SI2 | Obvious inclusions under 10x; very apparent to the unaided eye |
I1 | prominent - moderate affect on appearance or durability |
I2 | prominent - severe affect on appearance or durability |
I3 | prominent - severe affect on beauty, transparency or durability |
6 mm = 1/4 inch (Approx)
- 存货单位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- 类型
- Bead
- 颜色
-
DESCRIPTION: |
|
Gem Type:NATURAL SHELL |
Weight (CARATS):39.6 CTS
|
Color:IVORY TINT |
SIZE (mm): 30 X 3 MM
|
Additional Comments: PIECES- 1 STRAND/ AS IN PHOTO
ARTIFICIAL BLACK DYEING WITH SILVER SALT: Treatment with silver nitrate solutions (AgNO3) is applied since the nineteen thirties to Japanese Akoya cultured pearls. The method was used at the end of the 19th century in the mother-of-pearl industry and natural pearls were also dyed this way. This means that the nucleus remains white, while the outer pearly layer takes on the dark color. The deposition of silver seems to concentrate in the conchioline layer which is often present between the nucleus and the pearly layer. The distribution of silver gets less towards the surface of the pearl. In the case of undrilled pearls diffusion of silver oxide starts however from the surface while in the case of drilled pearls the silver solution will more directly find its way to the border area between nucleus and outer pearly layer. Other Coloration
7 Pearl Value Factors:
|
Type 1 Gemstones |
The following gemstones are typically inclusion free, even minor inclusions detract from their value. |
Diamond, Amethyst, Beryls(Aquamarine,Morganite), Citrine, Smoky Quartz, topaz, Chrysoberyl, Kunzite, Tanzanite, green Tourmaline, and Blue Zircon |
IF | Internally flawless under extreme magnification (Very rare) |
F | Flawless |
VVS | Minute inclusions under 10x; invisible to the unaided eye |
VS | Minor inclusions under 10x; usually invisible to the unaided eye |
SI1 | Noticeable inclusions under 10x; usually visible to the unaided eye |
SI2 | Noticeable inclusions under 10x; usually quite visible to the unaided eye |
I1 | prominent- moderate affect on appearance or durability |
I2 | prominent - severe affect on appearance or durability |
I3 | prominent- severe affect on beauty, transparency or durability |
Type 2 Gemstones |
Gemstones that normally have small inclusions that do not detract from value. |
Alexandrite, Andalusite, Iolite, Peridot, Rhodolite, Ruby, Sapphire, Spinel, Tourmaline, Garnet, Amethyst, Red Zircon, Tsavorite; Blue, Orange, Purple, Yellow and Parti-colored Tourmaline |
F | Flawless |
VVS | Minor inclusions under 10x; usually invisible to the unaided eye |
VS | Noticeable inclusions under 10x; often invisible to the unaided eye |
SI1 | Obvious inclusions under 10x; visible to the unaided eye |
SI2 | Obvious inclusions under 10x; very apparent to the unaided eye |
I1 | prominent - moderate affect on appearance or durability |
I2 | prominent - severe affect on appearance or durability |
I3 | prominent - severe affect on beauty, transparency or durability |
6 mm = 1/4 inch (Approx)
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
|
||
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
Getting ready for summer in Seattle - this is perfect!
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积极的
excellent seller, everything corresponds to the photos and description
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积极的
excellent seller, everything corresponds to the photos and description
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积极的
Paid and shipped - no feedback left after 100 days
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