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$650.00 USD
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2.89 CTS CERTIFIED YELLOW SAPPHIRE [B34800]

3936
6

SKU
寸法(mm)
9.000 x 7.000 x 5.000mm
重さ (CT)
2.890
Treatment
Beryllium Treatment
Shape
Oval
タイプ
Faceted
Certified Gemstones
はい

Seda gems is commited to full disclosure of stones a with a money back guarantee.

YELLOW SAPPHIRE

This is a natural Yellow Sapphire mined in Sri lanka.

It has a magnificent yellow hue and dances under lighting.

Heat treated and Beryllium treated. Both are permanent treatments

Cut Oval

Weight 2.89 cts

Size 8.56 x 7.24 x 5.16 mm

Grading VS

This stone is sent in a sealed envelope with a plastic window-if opened it cannot be returned.

Sapphire is one of the two gem varieties of corundum, the other being the red ruby. Although blue is the most well known hue, sapphire is any color of corundum except red. Sapphire may also be colorless, and it also occurs in the non-spectral shades gray and black. Pinkish-orange sapphire is known as padparadscha.

The cost of natural sapphire varies depending on their color, clarity, size, cut, and overall quality as well as geographic origin.

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, Fluorite.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

TREATMENTS

Sapphires may be treated by several methods to enhance and improve their clarity and color. It is common practice to heat natural sapphires to improve or enhance color. This is done by heating the sapphires to temperatures between 500 and 1800 °C for several hours, or by heating in a nitrogen-deficient atmosphere oven for seven days or more. Low Tube heating is where the stone is placed in a ceramic pot over charcoal, in which a man blows air through a bamboo tube to the charcoal creating more heat. The stone becomes a more blue in color but loses some of the silk. When high heat temperatures are used, the stone loses all of the silk and becomes clear under magnification. Evidence of sapphire and other gemstones being subjected to heating goes back to, at least, Roman times. Diffusion treatments are somewhat more controversial as they are used to add elements to the sapphire for the purpose of improving colors. Typically beryllium (Be) is diffused into a sapphire with very high heat, just below the melting point of the sapphire. Initially (c. 2000) orange sapphires were created with this process, although now the process has been advanced and many colors of sapphire are often treated with beryllium. It is unethical to sell beryllium-treated sapphires without disclosure, and the price should be much lower than a natural gem or one that has been enhanced by heat alone.

配送業者 配送先Australia その他の国への配送
FedEx $12.00 / 3 $39.00 / 10
:国
FedEx 、 2以上のアイテムを含む注文で$12.00に割引されます
世界のその他の地域
FedEx 、 2以上のアイテムを含む注文で$39.00に割引されます
Registered Shipping $9.00 / 7 $16.00 / 21
:国
Registered Shipping 、 2以上のアイテムを含む注文で$9.00に割引されます
世界のその他の地域
Registered Shipping 、 2以上のアイテムを含む注文で$16.00に割引されます

sedagems
sedagems
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
Mermaid Waters 、 Australia
確認済み
19061フィードバック

  • rustynut
    rustynut
    ポジティブ

    Good stone great service

  • martin11
    martin11
    ポジティブ

    Great thank very much, lovely pearls.

  • philsgems
    philsgems
    ポジティブ

    Nice piece of rough. thankyou

  • philsgems
    philsgems
    ポジティブ

    Nice stone. Thankyou

  • philsgems
    philsgems
    ポジティブ

    Have received the rough. Nice colour. Thankyou

5%
クーポンコード SEDADEALS
まで有効
2nd Jan 2025

監査

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発送詳細

配送:
$16.00 21日 ( Registered Shipping経由)
発送元:
Australia

支払いオプション

  • paypal
  • stripe
この販売者は、 Australiaでの取引に10.00%税金を追加します。

概要

リストタイプ : Standard
製品番号 : 1048106
始まります : 20th December 2024 05:59 pm PST
* すべての価格はUSDで表記されています