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$28.00 USD
價格

CHAMPAGNE TOPAZ-VIBRANT - 12.80 CTS [S5348]

4760
21

存貨單位
尺寸(毫米)
14.000 x 9.000 x 6.000mm
重量 (cts)
12.800
類型
Faceted
顏色

SEDA GEMS

SPARKLING CHAMPAGNE TOPAZ

This is a well facatednaturalclean topaz stone which has been irradiated treated to enhance the colour.

Mined in Brazil

Round

Transulant

Grading SI 1

Total weight 12.80 cts app

Size 14 x 9 mm

Topaz is commonly associated with silicic igneous rocks of the granite and rhyolite type. It typically crystallizes in granitic pegmatites or in vapor cavities in rhyolite lava flows.

Pure topaz is colorless and transparent but is usually tinted by impurities; typical topaz is wine, straw yellow, pale gray or reddish-orange. It can also be made white, pale green, blue, gold, pink (rare), reddish-yellow or opaque to transparent/translucent.

Topaz has a hardness of 8 on the Mohs scale and is the hardest silicate along with beryl (Aquamarine). The Toughness of Topaz is Fair. Topaz crystallizes in the orthorhombic crystal system, with an “Elongate Prismatic” crystal habit. Pinacoid, multiple domes and orthorhombic pyramid faces produce complex and multifaceted terminations that are well formed. Topaz has a chain-like lattice structure of irregular octahedrons. Topaz has perfect (easy) basal cleavage in one direction (in the plane perpendicular to the c-axis), with a conchoidal fracture, therefor it is a difficult stone to set without fracturing. Topaz has a refractive index of 1.610 to 1.630.

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

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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.
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已驗證
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  • rustynut
    rustynut
    積極的

    Good stone great service

  • martin11
    martin11
    積極的

    Great thank very much, lovely pearls.

  • philsgems
    philsgems
    積極的

    Nice piece of rough. thankyou

  • philsgems
    philsgems
    積極的

    Nice stone. Thankyou

  • philsgems
    philsgems
    積極的

    Have received the rough. Nice colour. Thankyou

5%
優惠券代碼 SEDADEALS
有效期至
2nd Jan 2025

審計

該產品已由Gemstone Sheriff審核,他們發現以下內容:
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Comments

The Verified Seller has provided accurate and complete information for this gemstone including weight, dimensions and treatments where applicable.

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送貨細節

船運:
$16.00 21透過Registered Shipping計算天數
發貨自:
Australia

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該賣家在Australia交易中加入了10.00%稅。

概述

列表類型 : Standard
產品編號 : 208020
開始 : 20th December 2024 06:00 pm PST
* 所有價格均以:貨幣為單位