Loose gemstone

Corundum - Ruby

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Details

Carat: 0.97 ct
Dimensions: 5.3 x 5.1 x 3.1 mm
Cut: Round Cabochon
Shape: Round
Cutting style: Cabochon
Colour: Wine
Clarity: Heavily included
Treatment: Untreated
Origin: Tanzania
Stone number: 7915

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· Mineralogy ·

pink Ruby

Pink ruby is the lighter sister of the deep red ruby: the same chromium colorant, simply dosed more gently. From berry pink to raspberry, it keeps the fire but wears it more lightly.

Mohs hardness

trigonal

Crystal system

1.762 - 1.770

Refractive index

Untreated

Natural stone

Properties

Mineral group: Corundum
Chemical formula: Al₂O₃
Colorant: chromium
Crystal system: trigonal
Hardness (Mohs): 9
Density: approx. 4.0 g/cm³
Refractive index: 1.762 - 1.770
Optical character: anisotropic, uniaxial negative
Birefringence: 0.008 - 0.010
Dispersion: 0.018
Pleochroism: distinctly dichroic: pink / reddish pink
Fluorescence: strong red (long-wave UV)
Luster: vitreous

Why this stone

The rarity of ruby in a tone made for every day - fire, turned down a notch.

Tradition

Pink ruby is associated with warmth of heart, joy of life, and gentle strength. It is said to open the heart without overwhelming it.

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US$ 230.00