• Uvarovite Garnet Value, Price, and Jewelry Information

    Sterling silver Gretel ring with natural uvarovite garnet. Collection inspired by the tale of “Hansel and Gretel.” Uvarovite size: 10 x 10 mm. ? Marta Oms, Jeweler & Gemologist, Barcelona. Used with permission.

    Uvarovite Garnet

    Always a dark, rich green color, uvarovite is one of the rarest members of the garnet family. Usually only seen as druzy on matrix, these crystals are seldom faceted.

    Uvarovite Garnet Value

    For information on quality factors for uvarovites and other garnets, consult our garnet buying guide.

    The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

    Garnet Value via Gem Price Guide

    Almandine

    Top Color: oR, R, PR, rP 6/4
    Almandine All sizes
    to /ct

    Almandine/Pyrope Blend ("Mozambique")

    Red-Brown Colors
    "Mozambique" All sizes
    to /ct

    Rhodolite (Almandine/Pyrope Blend)

    Fine Color: rP, PR 6/5
    Rhodolite .5 to 1 carat 1 to 10 carats 10 carats plus
    Faceted to /ct to /ct to /ct
    Cabochons to /ct to /ct to /ct

    Andradite

    Fine Color: G 5/4
    Andradite All sizes
    to /ct

    Demantoid

    Demantoid to 1 carat 1 to 3 carats
    to ,200/ct to ,000/ct

    Grossular

    Grossular .5 to 1 carat 1 to 5 carats 5 carats plus
    Mint Green (Merelani) to /ct to /ct to /ct
    Yellow/Orange to /ct to /ct to /ct
    Yellow/Green to /ct to /ct to /ct
    Other colors /ct /ct to /ct

    Hessonite

    Fine Color: yO 4/5
    Hessonite Garnet All sizes
    to /ct

    Tsavorite

    Fine Color: G 6/5
    Tsavorite .5 to 1 carat 1 to 2 carats 2 carats plus
    Faceted to /ct to ,500/ct to ,000/ct

    Mali Garnets (Andradite/Grossular Blend)

    Mali Garnet All sizes
    to /ct

    Malaya (Malaia) Garnets

    Malaya Garnet .5 to 1 carat 1 to 5 carats 5 carats plus
    to /ct to /ct to /ct

    Pyrope

    Fine Color: R 6/5
    Pyrope 1 carat plus
    /ct

    Chrome Pyrope

    Chrome Pyrope All sizes
    to /ct

    Spessartite

    Spessartite Reds .5 to 3 carats 3 to 6 carats
    Little 3 Mine to ,000/ct to ,000/ct
    African to /ct to /ct
    Darker reds to /ct

    Mandarin

    Fine Color: O 4/5
    Mandarin Orange All sizes
    to ,200/ct

    Uvarovite

    Uvarovite 10 carats plus
    Druzy to /ct

    Star Garnet

    Star Garnet All sizes
    6 ray star to /ct
    4 ray star to /ct

    Color Change

    Color Change .5 to 1 carat 1 to 6 carats
    Africa to ,500/ct to ,000/ct
    US to /ct to /ct

    Cabochons

    Cabochons All Sizes
    Common red to purple to /ct

    Uvarovite Garnet Information

    Data Value
    Name Uvarovite Garnet
    Is a Variety of Garnet
    Heat Sensitivity Some
    Formula Ca3Cr2Si3O12
    Etymology Named after Count S. S. Uvarov, (1765-1855), mineral collector and president of the St. Petersburg Academy.
    Occurrence Chromites and serpentines, that is, metamorphic environments where both Ca and Cr are present.
    Colors Dark, rich green.
    Fracture Conchoidal
    Hardness 6.5-7.5
    Cleavage None
    Crystallography Isometric, but specimens with other crystal symmetry may occur. See "Identifying Characteristics" below.
    Refractive Index 1.74-1.87
    Birefringence Usually none, but some specimens may be birefringent. See "Identifying Characteristics" below.
    Dispersion 0.014-0.021
    Pleochroism None.
    Optics N = 1.74-1.87. May show anomalous birefringence, and some gems may actually be birefringent. See "Identifying Characteristics" below.
    Luster Vitreous.
    Specific Gravity 3.40- 3.80 (usually 3.71-3.77)
    Transparency Transparent to opaque.
    Birthstone January
    freeform faceted uvarovite - Finland

    “Freeform-Cut Uvarovite,” 6.4 x 4.5 mm, 0.44 cts, Outokumpu, Finland. ? Rob Lavinsky, www.iRocks.com. Used with permission. (Photos grouped to show views from different angles).

    Comments

    Since uvarovite crystals are usually opaque, only small corners of larger crystals have the transparency needed for faceting. Faceted pieces hardly ever exceed one carat in weight. Since these garnets are so rare, a cut specimen of any size would make a coveted prize for a collector.

    It’s a shame that these garnets with emerald-like deep green color are so rarely found. Faceted uvarovites would make wonderful jewelry stones. However, uvarovite druzy specimens have also been used in beautiful raw stone designs.

    Uvarovite - Russia

    “Garnet, Var. Uvarovite,” Saranovskii Mine, Saranovskaya Village, Gornoazavodskii area, Permskaya Oblast, Middle Urals, Urals Region, Russia. (Type Locality). Photo by Géry Parent. Public Domain.

    Identifying Characteristics

    Distinguishing Deep Green Garnets

    Just like many emeralds, uvarovites also get their color from chromium (Cr). However, other garnet species also contain chromium, such as?demantoid (andradite) and some tsavorite (grossular). These fellow garnets also share their deep green color range.

    Demantoid’s specific gravity (3.82-3.88) exceeds that of uvarovite (3.40-3.80, usually 3.71-3.77). Tsavorites and uvarovites have just a slight overlap of refractive index ranges (1.72-1.744 and 1.74-1.87, respectively).

    Birefringent Uvarovite

    Although garnets are isometric, their optical properties can vary based on their chemistry. The presence of a large Ca (calcium) atom in uvarovite may make some specimens birefringent. This may be due to strain or symmetry reduction. Monoclinic, orthorhombic, and triclinic symmetry does occur in natural uvarovites.

    Synthetics

    Synthetic uvarovite has been used to study garnet series. Scientists have also synthesized uvarovite crystals via the flux method as part of the study of the natural birefringence mentioned previously. However, there is no known jewelry use of this material.

    For information on other synthetic garnets, see the “Synthetics” section of our main garnet gem listing.

    Enhancements

    No known enhancements.

    Sources

    The best known source of gem-quality uvarovites, Outokumpu, Finland produces large, fine green crystals.

    Other notable sources include

    • United States: Northern California (in chromite deposits); Oregon.
    • Afghanistan; Thetford, Quebec, Canada; China; Norway; Russia (fine crystals); South Africa.
    uvarovite - Afghanistan

    An unusually large uvarovite garnet crystal, 2.1 x 1.9 x 1.2 cm, from Laghman (Lagman; Nuristan) Province, Afghanistan. ? Rob Lavinsky, www.iRocks.com. Used with permission.

    Stone Sizes

    Even though crystals may reach a size of 1-2 inches, the occasional piece with a transparent corner would likely yield a faceted gem of less than a carat.

    Care

    Uvarovites have no cleavage and a hardness of 6.5 to 7.5. Thus, faceted specimens would make durable jewelry stones. However, garnets do have heat sensitivity. So, whether your gems belong in a mineral collection or jewelry box, clean them with warm water, detergent, and a soft brush.

    Due to the small size of the finished gems, recommended cuts for uvarovites include freeform designs and shallow checkerboards.

    Druzy uvarovites should first be cleaned carefully with compressed air. Brush carefully, since physical contact can knock loose some crystals from their matrix. Druzy pieces that have smaller crystals and little or no exposed matrix will make more durable jewelry stones.

    Consult our gemstone jewelry cleaning guide for more recommendations.

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