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Bulk pricing on every stone · Natural & lab-created · Worldwide shipping
Bulk pricing on every stone · Natural & lab-created · Worldwide shipping
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    Popular calibrated sizes3×2 mm4×3 mm5×3 mm6×4 mm7×5 mm8×6 mm9×7 mm10×8 mm12×10 mm
    Bulk pricing on every stoneNatural & lab-createdVideo on every listingInsured worldwide shipping
  • Diamonds

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    Natural Lab-grown Natural or lab-grown?Same sparkle, different origin. Every listing is clearly labeled.Read the guide →
    Natural & lab-grown, clearly labeledBulk pricing on meleeCertified stones availableInsured worldwide shipping
  • Jewelry

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    10 mm Natural Garnet Heart Pendant | 14K White Gold AAA Heart Solitaire Necklace Gift for HerBest seller 10 mm Natural Garnet Heart Pendant | 14K White Gold AAA Heart Solitaire Necklace Gift for Her$429.89
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    Video on every listingNatural & lab-created stonesEasy returns & exchangesInsured worldwide shipping
  • Findings & Castings

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    Setting finder Have the stone? Find the setting that fits it.
    Settings sized to our calibrated stonesSolid goldInsured worldwide shipping
  • Chains

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    14K yellow gold14K white gold10K yellow goldUnder $250

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    Finish the piece

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    1.0 mm1.5 mm2.0 mm3.0 mm Chain widths at a glanceFiner chains for small pendants, heavier links for larger stones.Shop all chains →
    Solid gold chainsLengths 16 to 24 inchInsured worldwide shipping
  • One-of-a-Kind

    Singles & certified

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    Just listed singlesView all one-of-a-kind →
    Red Diamond - 5.7mm SI1 (irradiated) - 0.69 ct Red Diamond - 5.7mm SI1 (irradiated) - 0.69 ct$1,048.80 Natural Red Diamond 0.53 ct | Round Brilliant 5.05mm | VS-SI Quality | Rare Loose Red Diamond for Jewelry, Collectors, Gifts Natural Red Diamond 0.53 ct | Round Brilliant 5.05mm | VS-SI Quality | Rare Loose Red Diamond for Jewelry, Collectors, GiftsSKU CUSTOM$961.95 Teal blue diamond Princess Cut 0.51 Carats 4.30 x 4.40 x 3.30mm Teal blue diamond Princess Cut 0.51 Carats 4.30 x 4.40 x 3.30mm$2,218.34
    The exact stone in the video is the one you getCertified stones availableInsured worldwide shipping
  • Resources

    Gemstone guides

    Knowledge centerPrecious gemstonesSemi-precious gemstonesLab-grown gemstonesPearlsMoissanite

    Diamond guides

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    Lab-created guides

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    For the tradeDownload the Instagem catalogGet the catalog →
    40+ years in the gemstone tradeQuestions? 212-840-3660info@instagem.net
  • New

    New this week

    All new arrivalsNew precious gemstonesNew semi-precious gemstonesNew lab-created stonesNew one-of-a-kind stonesNew diamondsNew jewelryNew findings & castings
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    Lab Created Emerald 3mm Asscher Cut | 22-Piece Parcel | InstagemNew Lab Created Emerald 3mm Asscher Cut | 22-Piece Parcel | Instagem$438.90 YAG Gemstone Loose | Lab Created Neon Yellow Emerald Cut — Statement Jewelry Design 7x5mm-14x10mmNew YAG Gemstone Loose | Lab Created Neon Yellow Emerald Cut — Statement Jewelry Design 7x5mm-14x10mmFrom $29.59 Synthetic Purple Sapphire Trapezoid Cut Gemstone 11.60x3.17x7.00mm | Lab-Created Purple Sapphire | Loose Stone for Custom JewelryNew Synthetic Purple Sapphire Trapezoid Cut Gemstone 11.60x3.17x7.00mm | Lab-Created Purple Sapphire | Loose Stone for Custom Jewelry$279.95 Synthetic YAG Morganite Elongated Cushion Cut | Peach Pink Loose Gemstone 8x6–14x10mm AAA | Engagement Ring, Jewelry MakingNew Synthetic YAG Morganite Elongated Cushion Cut | Peach Pink Loose Gemstone 8x6–14x10mm AAA | Engagement Ring, Jewelry MakingFrom $62.97
    First look at new stonesSee everything new →
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