Tsavorite Garnet

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Tsavorite Garnet has a specific gravity of 3.61 and a refractive index of 1.730–1.760, with a Mohs hardness of 7.0–7.5. It is singly refractive.

Physical & Optical Properties

RI Range1.730–1.760

SG Range3.59–3.65

SG Typical3.61

Hardness (Mohs)7–7.5

Crystal SystemCubic

Optic CharacterSR (Singly Refractive)

Dispersion0.028

Fluorescence LWInert

Fluorescence SWInert

Chelsea FilterRed

PleochroismNone

ColorsGreen

SpeciesGarnet

VarietyTsavorite

Key Differentiators

Bright, intense green color
Singly refractive
High RI and dispersion

Common Simulants

Emerald: Emerald: uniaxial negative DR; RI 1.577–1.583; SG 2.72; Chelsea filter red; typically has more inclusions (jardin).
Demantoid Garnet: Demantoid: higher RI (1.888); stronger fire/dispersion; may have horsetail inclusions; SG 3.84.
Green Tourmaline: Tourmaline: uniaxial negative DR; RI 1.624–1.644; SG 3.06; shows facet doubling under loupe.

Commonly Confused With

Commonly confused with: Emerald, Demantoid Garnet, Tourmaline, Glass, Chrome Diopside.

Price Context

Natural — low ($/ct)$500

Natural — high ($/ct)$5,000

NotePer carat; intense medium-dark green; large clean stones above 2 ct are very scarce

Price context is approximate. Loupewise is not an appraisal tool. Results are indicators, not certified valuations.

Measurement Guides

Identifying a tsavorite garnet? Loupewise walks through these tests in order — RI, SG, fluorescence, and more.

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Studying for the GIA, FGA, or FEEG practical? Tsavorite Garnet is one of the 130 species in Loupewise’s drill and exam pool — practice identifying it from its measured properties under timed exam conditions.

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