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$28.00 USD
Prix
4680
20

CHAMPAGNE TOPAZ-VIBRANT - 12.80 CTS [S5348]

UGS
Dimensions (mm)
14.000 x 9.000 x 6.000mm
Poids (cts)
12.800
Taper
Faceted
Couleurs

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
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.
:ville Pays
Vérifié
: Retour total

  • gemarab
    gemarab
    Positif

    Great and clear sapphire, beautiful cut ! Great packaging

  • marcopaulo
    marcopaulo
    Négatif

    Not as pictured and underweight by 1.52ct.

  • marcopaulo
    marcopaulo
    Positif

    As pictured but unweight by .14 ct, will accept.

  • js20031
    js20031
    Positif

    AAAA+++ Very Happy! Just like the pic.

Audit

Ce produit a été audité par un Gemstone Sheriff et ils ont trouvé ce qui suit :
  • Description Précis
  • Images précises

Comments

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

Cet audit a été demandé il y a 9 ans
Dernière mise à jour il y a 9 ans

Les détails d'expédition

Expédition:
$16.00 :compter les jours via Registered Shipping
Expédié depuis:
Australia

Options de paiement

  • paypal
  • stripe
Ce vendeur ajoute 10.00% tax aux transactions dans Australia.

Aperçu

Type d'inscription : Standard
Identifiant du produit : 208020
Départs : 8th November 2024 06:00 pm PST
* Tous les prix sont en :devise