Lulu AmaniOlten · Suisse
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Loose gemstone

Garnet - Grossular

Every stone is one of a kind. We quote on request - with full detail on origin and treatment.

Details

Carat
0.68 ct
Dimensions
5.1 x 5.1 x 3.6 mm
Cut
Brilliant
Shape
Round
Cutting style
Brilliant cut
Colour
Sand Grey
Clarity
Slightly included
Treatment
Untreated
Origin
Tanzania
Stone number
7783
All gemstones
· Mineralogy ·

Hessonite

Hessonite reveals warm tones from honey and cinnamon to deep orange-brown, with rare specimens from the Umba Valley showing a subtle color shift between warm daylight and cooler indoor light. Its characteristic inner texture, often described as a "scotch in water" or heat-wave effect, gives every stone an organic depth and a unique fingerprint.

7 - 7.5
Mohs hardness
cubic
Crystal system
1.735 - 1.750
Refractive index
Untreated
Natural stone

Properties

Mineral group
Garnet (grossular)
Chemical formula
Ca₃Al₂(SiO₄)₃
Colorant
iron and manganese
Crystal system
cubic
Hardness (Mohs)
7 - 7.5
Density
approx. 3.57 - 3.73 g/cm³
Refractive index
1.735 - 1.750
Optical character
isotropic (singly refractive)
Birefringence
none
Dispersion
0.027
Pleochroism
none (isotropic)
Fluorescence
inert
Luster
vitreous

Why this stone

Hessonite combines warm, glowing color with strong individual character. Its honey to cinnamon tones bring a vintage warmth into modern designs, and the natural inclusions make every piece unmistakably one of a kind.

Tradition

Hessonite is associated with grounding, courage, and creative drive. It is traditionally believed to support self-confidence and clear focus.