Loose gemstone

Spinel

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Details

Carat: 0.67 ct
Dimensions: 6.3 x 4.8 x 3.4 mm
Cut: Oval Brilliant cut
Shape: Oval
Cutting style: Brilliant cut
Colour: Plum
Clarity: Slightly included
Treatment: Untreated
Origin: Tanzania
Stone number: 7835

All gemstones

· Mineralogy ·

pink Spinel

The pink spinel fascinates with shades ranging from soft rose to vibrant magenta. Its lively brilliance conveys freshness, energy, and feminine elegance.

Mohs hardness

cubic

Crystal system

1.712 - 1.736

Refractive index

Untreated

Natural stone

Properties

Mineral group: Spinel
Chemical formula: MgAl₂O₄
Colorant: chromium
Crystal system: cubic
Hardness (Mohs): 8
Density: approx. 3.58 - 3.61 g/cm³
Refractive index: 1.712 - 1.736
Optical character: isotropic (singly refractive)
Birefringence: none
Dispersion: 0.020
Pleochroism: none (isotropic)
Fluorescence: moderate to strong red (chromium-bearing)
Luster: vitreous

Why this stone

Among the rarest color varieties of the spinel family, its intense color and excellent brilliance make it a modern luxury gemstone with radiant allure.