Bulk pricing on every stone · Natural & lab-created · Worldwide shipping

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Loose Gemstones

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Garnet Amethyst Citrine Topaz Peridot Morganite Opal All loose gemstones →

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Round Oval Cushion Pear Emerald cut Princess Marquise Heart Trillion Baguette

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All loose gemstones Precious gemstones Semi-precious gemstones Lab-created gemstones One-of-a-kind singles Matched pairs Parcels & lots Pearls

Calibrated stone finder Pick a gem and shape. We'll show every size. Gemstone Shape Two cuts: Market Basics or Precision Cut. Grades A to AAAA. Buy 1 or 100+, with bulk pricing on every size.

Popular calibrated sizes3×2 mm 4×3 mm 5×3 mm 6×4 mm 7×5 mm 8×6 mm 9×7 mm 10×8 mm 12×10 mm

Bulk pricing on every stoneNatural & lab-createdVideo on every listingInsured worldwide shipping
Diamonds

Natural diamonds
All loose diamonds Natural diamonds, GIA certified White diamonds Natural black diamonds Natural brown diamonds Accent diamond parcels

Lab-grown & simulants
Lab-grown diamonds More lab-grown diamonds Moissanite Cubic zirconia

Colored diamonds
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Round Oval Cushion Pear Emerald cut Princess Marquise Heart Baguette

Special cuts
Rough diamonds Rose cut diamonds Diamond beads Treated briolettes Treated rough

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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Rings Earrings Necklaces & pendants Bracelets New arrivals All jewelry
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Under $250 $250 to $500 $500 to $1,000 $1,000 and up

Best seller 10 mm Natural Garnet Heart Pendant | 14K White Gold AAA Heart Solitaire Necklace Gift for Her$750.00

Shop by birthstoneJan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Video on every listingNatural & lab-created stonesEasy returns & exchangesInsured worldwide shipping
Findings & Castings

Castings & mountings
All castings & findings Pendant mountings Earring mountings Ring mountings Single-stone settings Ring blanks

Findings
All findings Earring backs Clasps Jump rings Pendant bails Peg & prong heads

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14K yellow gold 14K white gold 14K pink gold 10K yellow gold 18K yellow gold

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Round Oval Pear Cushion Emerald cut Heart

Setting finder Have the stone? Find the setting that fits it. Stone shape Piece

Settings sized to our calibrated stonesSolid goldInsured worldwide shipping
Chains

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All chains Singapore Cable Rolo Box Snake Curb

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14K yellow gold 14K white gold 10K yellow gold Under $250

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16 inch 18 inch 20 inch 24 inch

Finish the piece
Clasps Jump rings Pendant bails Pendant mountings

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
All one-of-a-kind stones Certified stones Precious one-of-a-kind Natural diamonds, GIA certified Matched pairs

Just listed singlesView all one-of-a-kind →

Red Diamond - 5.7mm SI1 (irradiated) - 0.69 ct$1,800.00 Natural Red Diamond 0.53 ct | Round Brilliant 5.05mm | VS-SI Quality | Rare Loose Red Diamond for Jewelry, Collectors, GiftsSKU CUSTOM$1,650.00 Teal blue diamond Princess Cut 0.51 Carats 4.30 x 4.40 x 3.30mm$3,750.00

The exact stone in the video is the one you getCertified stones availableInsured worldwide shipping
Resources

Gemstone guides
Knowledge center Precious gemstones Semi-precious gemstones Lab-grown gemstones Pearls Moissanite

Diamond guides
Natural diamonds Treated diamonds Lab-grown diamonds

Lab-created guides
Lab emeralds Lab ruby Lab sapphire Lab alexandrite Lab diamonds Lab moissanite

Help
Contact us Request a call back Worldwide shipping Returns & exchanges FAQs About Instagem

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 arrivals New precious gemstones New semi-precious gemstones New lab-created stones New one-of-a-kind stones New diamonds New jewelry New findings & castings

Just in
New Lab Created Emerald 3mm Asscher Cut | 22-Piece Parcel | Instagem$750.00 New YAG Gemstone Loose | Lab Created Neon Yellow Emerald Cut — Statement Jewelry Design 7x5mm-14x10mmFrom $50.00 New Synthetic Purple Sapphire Trapezoid Cut Gemstone 11.60x3.17x7.00mm | Lab-Created Purple Sapphire | Loose Stone for Custom Jewelry$475.00 New Synthetic YAG Morganite Elongated Cushion Cut | Peach Pink Loose Gemstone 8x6–14x10mm AAA | Engagement Ring, Jewelry MakingFrom $110.00

First look at new stonesSee everything new →