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    Opal Gemstone

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    • Breathtaking 5.55 Ct Natural Opal Platinum Ring
      Estimate
      $2,700 - $3,750

      Breathtaking 5.55 Ct Natural Opal Platinum Ring

      Est.
      $2,700 - $3,750
      1 Great Deal Auctions
      0 Bids
      Starting Bid
      $1
      Click Here to Bid Live
    • Breathtaking 1.42 Ct GIA Certified Natural Opal
      Estimate
      $2,400 - $3,350

      Breathtaking 1.42 Ct GIA Certified Natural Opal

      Est.
      $2,400 - $3,350
      1 Great Deal Auctions
      0 Bids
      Starting Bid
      $1
      Click Here to Bid Live
    • Huge Rare 8.01 Ct GIA Certified Natural Opal
      Estimate
      $7,600 - $10,600

      Huge Rare 8.01 Ct GIA Certified Natural Opal

      Est.
      $7,600 - $10,600
      1 Great Deal Auctions
      0 Bids
      Starting Bid
      $1
      Click Here to Bid Live
    • Natural Certified 2.91 Ct Australian Rainbow Opal
      Estimate
      $400 - $500

      Natural Certified 2.91 Ct Australian Rainbow Opal

      Est.
      $400 - $500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Natural Certified 2.91 Ct Australian Rainbow Opal
      Estimate
      $400 - $500

      Natural Certified 2.91 Ct Australian Rainbow Opal

      Est.
      $400 - $500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Natural Certified 2.91 Ct Australian Rainbow Opal
      Estimate
      $400 - $500

      Natural Certified 2.91 Ct Australian Rainbow Opal

      Est.
      $400 - $500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Natural Certified 2.91 Ct Australian Rainbow Opal
      Estimate
      $400 - $500

      Natural Certified 2.91 Ct Australian Rainbow Opal

      Est.
      $400 - $500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Beautiful 5.54 Ct GIA Certified Natural Opal
      Estimate
      $3,500 - $5,500

      Beautiful 5.54 Ct GIA Certified Natural Opal

      Est.
      $3,500 - $5,500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Large Rare 15.54 Ct GIA Certified Natural Opal
      Estimate
      $2,100 - $2,800

      Large Rare 15.54 Ct GIA Certified Natural Opal

      Est.
      $2,100 - $2,800
      1 Great Deal Auctions
      Click Here to Bid Live
    • Large Rare 6.39 Ct GIA Certified Natural Opal
      Estimate
      $6,650 - $9,300

      Large Rare 6.39 Ct GIA Certified Natural Opal

      Est.
      $6,650 - $9,300
      1 Great Deal Auctions
      Click Here to Bid Live
    • ASSORTED LOOSE / UNMOUNTED ROCKS, MINERALS / CRYSTALS, AND OTHER MATERIALS, UNCOUNTED LOT
      Estimate
      $50 - $100

      ASSORTED LOOSE / UNMOUNTED ROCKS, MINERALS / CRYSTALS, AND OTHER MATERIALS, UNCOUNTED LOT

      Est.
      $50 - $100
      Jeffrey S. Evans & Assoc., ...
      6 Bids
      Sold for
      $300
      Click Here to Bid Live
    • 24.65ct Ethiopian Opal Gemstone
      Estimate
      $2,500 - $3,500

      24.65ct Ethiopian Opal Gemstone

      Est.
      $2,500 - $3,500
      Heritage Estate Jewelry
    • 4.2ct Ethiopian Opal Gemstone
      Estimate
      $300 - $500

      4.2ct Ethiopian Opal Gemstone

      Est.
      $300 - $500
      Heritage Estate Jewelry
    • 7.08ct Ethiopian Opal Gemstone
      Estimate
      $900 - $1,100

      7.08ct Ethiopian Opal Gemstone

      Est.
      $900 - $1,100
      Heritage Estate Jewelry
    • 13.98ct Ethiopian Opal Gemstone
      Estimate
      $1,500 - $1,800

      13.98ct Ethiopian Opal Gemstone

      Est.
      $1,500 - $1,800
      Heritage Estate Jewelry
    • ESTATE UNMOUNTED OVAL OPAL GEMSTONE, 31.91CTS
      Estimate
      $800 - $1,500

      ESTATE UNMOUNTED OVAL OPAL GEMSTONE, 31.91CTS

      Est.
      $800 - $1,500
      Austin Auction Gallery
      3 Bids
      Sold for
      $500
      Click Here to Bid Live
    • ESTATE UNMOUNTED OVAL OPAL GEMSTONE, 21.80CTS
      Estimate
      $500 - $1,000

      ESTATE UNMOUNTED OVAL OPAL GEMSTONE, 21.80CTS

      Est.
      $500 - $1,000
      Austin Auction Gallery
      8 Bids
      Sold for
      $600
      Click Here to Bid Live
    • ESTATE UNMOUNTED PEAR-CUT OPAL GEMSTONE, 28.50CTS
      Estimate
      $800 - $1,200

      ESTATE UNMOUNTED PEAR-CUT OPAL GEMSTONE, 28.50CTS

      Est.
      $800 - $1,200
      Austin Auction Gallery
      13 Bids
      Sold for
      $1,100
      Click Here to Bid Live
    • ESTATE UNMOUNTED NAVETTE-FORM OPAL GEMSTONE, 13.65CTS
      Estimate
      $400 - $600

      ESTATE UNMOUNTED NAVETTE-FORM OPAL GEMSTONE, 13.65CTS

      Est.
      $400 - $600
      Austin Auction Gallery
    • 35-Carat Opal Loose Gemstone
      Estimate
      $1,500 - $2,000

      35-Carat Opal Loose Gemstone

      Est.
      $1,500 - $2,000
      Fortuna Auction
      Click Here to Bid Live
    • ESTATE UNMOUNTED PEAR-SHAPE OPAL GEMSTONE, 29.65CTS
      Estimate
      $800 - $1,200

      ESTATE UNMOUNTED PEAR-SHAPE OPAL GEMSTONE, 29.65CTS

      Est.
      $800 - $1,200
      Austin Auction Gallery
      2 Bids
      Sold for
      $700
      Click Here to Bid Live
    • A quantity of unmounted gemstones,
      Estimate
      GBP£50 - GBP£70 $66.67 - $93.33

      A quantity of unmounted gemstones,

      Est.
      GBP£50 - GBP£70 $66.67 - $93.33
      Sworders
      Click Here to Bid Live
    • Large Collection of Unmounted Gemstones
      Estimate
      $500 - $700

      Large Collection of Unmounted Gemstones

      Est.
      $500 - $700
      Fine Estate, Inc.
      2 Bids
      Sold for
      $275
      Click Here to Bid Live
    • 19-Carat Pear Shape Cabochon Opal Loose Gemstone
      Estimate
      $1,500 - $2,500

      19-Carat Pear Shape Cabochon Opal Loose Gemstone

      Est.
      $1,500 - $2,500
      Fortuna Auction
      Click Here to Bid Live
    • 21.5-Carat Oval Cabochon Opal Loose Gemstone
      Estimate
      $2,000 - $3,000

      21.5-Carat Oval Cabochon Opal Loose Gemstone

      Est.
      $2,000 - $3,000
      Fortuna Auction
      Click Here to Bid Live
    • 23.5-Carat Oval Cabochon Opal Loose Gemstone
      Estimate
      $2,000 - $3,000

      23.5-Carat Oval Cabochon Opal Loose Gemstone

      Est.
      $2,000 - $3,000
      Fortuna Auction
      Click Here to Bid Live
    • Group of Unmounted Gemstones
      Estimate
      $300 - $500

      Group of Unmounted Gemstones

      Est.
      $300 - $500
      Fine Estate, Inc.
      1 Bid
      Sold for
      $150
      Click Here to Bid Live
    • JEWELRY. Collection of Loose Gemstones Inc. Opals.
      Estimate
      $300 - $500

      JEWELRY. Collection of Loose Gemstones Inc. Opals.

      Est.
      $300 - $500
      Clarke Auction
      Click Here to Bid Live
    • 4.17 Australian Opal
      Estimate
      $2,200 - $2,800

      4.17 Australian Opal

      Est.
      $2,200 - $2,800
      Heritage Estate Jewelry
    • Jewelry Grade Koroit Opal
      Estimate
      $10 - $1,000

      Jewelry Grade Koroit Opal

      Est.
      $10 - $1,000
      Best Estate Services
    • 2.49ct Australian Opal
      Estimate
      $2,300 - $2,800

      2.49ct Australian Opal

      Est.
      $2,300 - $2,800
      Heritage Estate Jewelry
    • A quantity of unmounted gemstones,
      Estimate
      GBP£60 - GBP£90 $80 - $120

      A quantity of unmounted gemstones,

      Est.
      GBP£60 - GBP£90 $80 - $120
      Sworders
      Click Here to Bid Live
    • ASSORTED LOOSE CUT GEMSTONES, GLASS STONES, AND RAW GEMSTONES, UNCOUNTED LOT
      Estimate
      $50 - $100

      ASSORTED LOOSE CUT GEMSTONES, GLASS STONES, AND RAW GEMSTONES, UNCOUNTED LOT

      Est.
      $50 - $100
      Jeffrey S. Evans & Assoc., ...
      6 Bids
      Sold for
      $50
      Click Here to Bid Live
    • 4.2ct Australian Black Opal
      Estimate
      $2,800 - $3,400

      4.2ct Australian Black Opal

      Est.
      $2,800 - $3,400
      Heritage Estate Jewelry
    • 12.87-Carat Mexican Fire Opal Loose Gemstone
      Estimate
      $300 - $500

      12.87-Carat Mexican Fire Opal Loose Gemstone

      Est.
      $300 - $500
      Fortuna Auction
      Click Here to Bid Live
    • Group of Unmounted Opals
      Estimate
      $300 - $500

      Group of Unmounted Opals

      Est.
      $300 - $500
      Fine Estate, Inc.
    • Large Collection of Unmounted Gemstones
      Estimate
      $500 - $700

      Large Collection of Unmounted Gemstones

      Est.
      $500 - $700
      Fine Estate, Inc.
      Click Here to Bid Live
    • Charles Herdemian Opal Studs
      Estimate
      $150 - $250

      Charles Herdemian Opal Studs

      Est.
      $150 - $250
      Neue Auctions
      Click Here to Bid Live
    • English 18k Gold Carved Opal Diamond Lion in a Cage Figurine
      Estimate
      $2,500 - $4,000

      English 18k Gold Carved Opal Diamond Lion in a Cage Figurine

      Est.
      $2,500 - $4,000
      Farber Auctioneers and Appr...
      Click Here to Bid Live
    • 5.60 cttw. Loose Mixed-Cut Opal Stones, 5
      Estimate
      $200 - $400

      5.60 cttw. Loose Mixed-Cut Opal Stones, 5

      Est.
      $200 - $400
      Auctions at Showplace
      Click Here to Bid Live
    • Jewelry Grade Koroit Opal
      Estimate
      $10 - $1,000

      Jewelry Grade Koroit Opal

      Est.
      $10 - $1,000
      Best Estate Services
    • JEWELRY. Assorted Grouping of Gemstones.
      Estimate
      $300 - $500

      JEWELRY. Assorted Grouping of Gemstones.

      Est.
      $300 - $500
      Clarke Auction
      Click Here to Bid Live
    • An unmounted pear shaped cabochon opal,
      Estimate
      GBP£400 - GBP£600 $533.33 - $800

      An unmounted pear shaped cabochon opal,

      Est.
      GBP£400 - GBP£600 $533.33 - $800
      Sworders
      Click Here to Bid Live
    • An unmounted pear shaped cabochon opal,
      Estimate
      GBP£500 - GBP£700 $666.67 - $933.33

      An unmounted pear shaped cabochon opal,

      Est.
      GBP£500 - GBP£700 $666.67 - $933.33
      Sworders
      Click Here to Bid Live
    • 2.40 Ct. Loose Round-Cut Fire Opal Stone
      Estimate
      $300 - $500

      2.40 Ct. Loose Round-Cut Fire Opal Stone

      Est.
      $300 - $500
      Auctions at Showplace
      Click Here to Bid Live
    • Natural Certified 2.91 Ct Australian Rainbow Opal
      Estimate
      $400 - $500

      Natural Certified 2.91 Ct Australian Rainbow Opal

      Est.
      $400 - $500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Natural Certified 2.91 Ct Australian Rainbow Opal
      Estimate
      $400 - $500

      Natural Certified 2.91 Ct Australian Rainbow Opal

      Est.
      $400 - $500
      1 Great Deal Auctions
      Click Here to Bid Live
    • Boulder Opal 1.55 ct
      Estimate
      $200 - $400

      Boulder Opal 1.55 ct

      Est.
      $200 - $400
      Revere Auctions
      Click Here to Bid Live