6.90 Carat Bicolor Afghan Tourmaline

UGS: sku 532
Dimensions (mm): 20.500 x 7.000 x 5.500mm
Poids (cts): 6.900
Treatment: No Treatment
Shape: Emerald
Taper: Faceted
Clarity: SI
Couleurs

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

WEIGHT(ct): 6.90

Size : 20.5x7x5.5 mm

CLARITY: SI

TREATMENT: NONE

ORIGIN: Afghanistan
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: sku 532
Dimensions (mm): 20.500 x 7.000 x 5.500 mm
Poids (cts): 6.900
Treatment: No Treatment
Shape: Emerald
Taper: Faceted
Clarity: SI
Couleurs

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

WEIGHT(ct): 6.90

Size : 20.5x7x5.5 mm

CLARITY: SI

TREATMENT: NONE

ORIGIN: Afghanistan
Certificate : On Demand

Whats is Tourmaline ?

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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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