1.78 ct Octagon (10.40 x 5.36 mm) Unheated / Untreated Watermelon Tourmaline

1.78 ct Octagon (10.40 x 5.36 mm) Unheated / Untreated Watermelon Tourmaline

USD 161.49 USD
SKU: Vg4ZIZYS
Brand: DeluxeGems
GTIN: Does not apply
Condition: New with tags
Categories: Fine Jewelry

Specifications

Materials Sourced FromBrazil
Country Of OriginBrazil
Gemstone TypeWatermelon Tourmaline
Gemstone ShapeOctagon
Gemstone ColorBi Color
Gemstone CreationNatural
Gemstone FormPolished
Gemstone TreatmentUnheated / Untreated
Item Length10.4
Item Width5.36
Item Depth3.41
BrandDeluxeGems
Cut GradeExcellent
Gemstone Clarity GradeEye Clean
TransparencyTransparent
Total Carat Weight (TCW)1.78
Total Carat Weight1.78
Size10.40 x 5.36 x 3.41 mm
Fancy ColorBi Color
CutExcellent
LusterExcellent
Natural/Lab-CreatedNatural
Hardness7.5 Mohs scale
Refractive Index1.62-1.64
Specific Gravity3.06
SKU230922-4I26G8

Slices of this stone should have a green rind with a pink center. There are currently 10 different varieties in the tourmaline family. Tourmaline is estimated to have been used as a gem for over 2000 years, especially by the Chinese.

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