4.70 Carat Bicolor Tourmaline

185

UGS: G1
Dimensions (mm): 9.000 x 8.500 x 7.000mm
Poids (cts): 4.700
Treatment: No Treatment
Shape: Emerald
Taper: Faceted
Clarity: VVS
Couleurs

It's a Beautiful Natural Faceted Emerald Cut Bi-color Tourmaline Loose Gemstone From Africa

Size : 9x8.5x7 mm
Weight CT : 4.70
CLARITY: Almost Loupe Clean
TREATMENT: NONE
ORIGIN: Africa
Certificate : On Demand

Whats is Tourmaline ?

Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone. This gemstone can be found in a wide variety of colors.

Color: Green, Black, Blue, Red, Pink, White, Yellow, Purple, Brown, Orange, Grey
Luster: Vitreous
Associated month: October
Crystal system: Hexagonal crystal system
Hardness (Mohs hardness scale): 7 – 7.5
Transparency: Opaque, Transparent

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UGS: G1
Dimensions (mm): 9.000 x 8.500 x 7.000 mm
Poids (cts): 4.700
Treatment: No Treatment
Shape: Emerald
Taper: Faceted
Clarity: VVS
Couleurs

It's a Beautiful Natural Faceted Emerald Cut Bi-color Tourmaline Loose Gemstone From Africa

Size : 9x8.5x7 mm
Weight CT : 4.70
CLARITY: Almost Loupe Clean
TREATMENT: NONE
ORIGIN: Africa
Certificate : On Demand

Whats is Tourmaline ?

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crystalgemstone

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Hi, I've been a gem collector with a very good knowledge & experience for over 15 years. My favorites include Paraiba (copper / manganese) tourmaline, all types of beryl,etc. Now and then, I offer some hand-picked stones out of my collection for sale.

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Ce produit a été audité par un Gemstone Sheriff et ils ont trouvé ce qui suit :

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The Verified Seller has provided accurate and honest pictures and details for this listing. Gem Rock Auctions is committed to holding our sellers to the highest standards of integrity and transparency. As part of this policy, we only permit the sale of natural, earth mined, gemstones. Many Gemstones have received treatments to enhance their color or clarity to further emphasize their beauty and we insist treatments are disclosed. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions.

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