Olivine · Olive green
Peridot
Green born in fire.
Certified · traceable origin
Typical size: 2 – 20 ct · Price on request
Specifications
- Mineral family
- Olivine (forsterite)
- Composition
- (Mg,Fe)₂SiO₄
- Hardness (Mohs)
- 6.5 – 7
- Refractive index
- 1.654 – 1.690
- Crystal system
- Orthorhombic
- Colour
- Yellowish green to olive green, coloured by iron
- Typical origins
- Pakistan · Myanmar · Arizona · Egypt (Zabargad)
Specifications are general gemological references for the species; each stone is assessed and documented individually.
Origin & story
Peridot is gem-quality olivine, one of the few gemstones that occurs in a single colour. It forms in mantle rock and volcanic basalt — and has even been found in meteorites.
Pakistani stones from Kohistan are prized for size and saturation. SOMSTONE handles both facet rough and calibrated cut stones.
Documentation
What to expect from a lab report
Where appropriate, stones are submitted to an independent gemological laboratory. A typical identification report records the fields below; values shown here are placeholders for illustration only and do not describe a specific stone.
Illustrative only. Not an actual certificate. Reports are issued by independent laboratories on a per-stone basis.
Sample — illustrative layout
Specifications · Peridot
Report no. SAMPLE-000000
Date DD · MM · YYYY
- Identification
- Olivine (forsterite)
- Variety
- Peridot
- Weight
- —.— ct
- Dimensions
- —.— × —.— × —.— mm
- Shape / cut
- —
- Colour
- Yellowish green to olive green, coloured by iron
- Transparency
- Transparent
- Origin opinion
- Subject to laboratory analysis
- Treatment
- Subject to laboratory analysis
- Comments
- Issued with stone-specific measurements and photographs.
Frequently asked
Buyer questions
Gemstone comparison
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