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    GIA Diamond Jewelry

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    • Unique 6.91 Ct GIA Certified Natural Sapphire
      Estimate
      $1,900 - $2,600

      Unique 6.91 Ct GIA Certified Natural Sapphire

      Est.
      $1,900 - $2,600
      1 Great Deal Auctions Live Now
      0 Bids
      Starting Bid
      $1
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    • Huge Rare 6.03 Ct GIA Certified Natural Tanzanite
      Estimate
      $6,900 - $9,650

      Huge Rare 6.03 Ct GIA Certified Natural Tanzanite

      Est.
      $6,900 - $9,650
      1 Great Deal Auctions Live Now
      0 Bids
      Starting Bid
      $1
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    • 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 Live Now
      0 Bids
      Starting Bid
      $1
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    • 14K WHITE GOLD 2.39CT DIAMOND RING
      Estimate
      $11,000 - $44,000

      14K WHITE GOLD 2.39CT DIAMOND RING

      Est.
      $11,000 - $44,000
      Robinhood Auctions
      0 Bids
      Starting Bid
      $11,000
      Click Here to Bid Live
    • HARRY WINSTON PLATINUM 0.71CT DIAMOND SOLITAIRE ENGAGEMENT RING
      Estimate
      $5,000 - $20,000

      HARRY WINSTON PLATINUM 0.71CT DIAMOND SOLITAIRE ENGAGEMENT RING

      Est.
      $5,000 - $20,000
      Robinhood Auctions
      0 Bids
      Starting Bid
      $5,000
      Click Here to Bid Live
    • Sapphire, Diamond & 14K Jewelry Suite
      Estimate
      $5,000 - $7,000

      Sapphire, Diamond & 14K Jewelry Suite

      Est.
      $5,000 - $7,000
      Kodner Galleries
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 0.63 ct. Natural Round Loose Diamond I, SI-1
      Estimate
      $2,089 - $2,880

      GIA 0.63 ct. Natural Round Loose Diamond I, SI-1

      Est.
      $2,089 - $2,880
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $100
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    • GIA 2.02 ct. Natural Cushion Modified Loose Diamond F, SI-1
      Estimate
      $16,349 - $18,790

      GIA 2.02 ct. Natural Cushion Modified Loose Diamond F, SI-1

      Est.
      $16,349 - $18,790
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 2.13 ct. Natural Round Loose Brilliant Diamond I, SI-2
      Estimate
      $14,789 - $16,521

      GIA 2.13 ct. Natural Round Loose Brilliant Diamond I, SI-2

      Est.
      $14,789 - $16,521
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
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    • GIA 2.01 ct. Natural Cushion Modified Loose Diamond G, SI-1
      Estimate
      $12,500 - $14,500

      GIA 2.01 ct. Natural Cushion Modified Loose Diamond G, SI-1

      Est.
      $12,500 - $14,500
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 1.01 ct. Round Brilliant Natural Loose Diamond E, VVS1
      Estimate
      $8,854 - $9,590

      GIA 1.01 ct. Round Brilliant Natural Loose Diamond E, VVS1

      Est.
      $8,854 - $9,590
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $500
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    • GIA 1.51 ct. Natural Cushion Modified Loose Diamond E, VS1
      Estimate
      $8,090 - $9,249

      GIA 1.51 ct. Natural Cushion Modified Loose Diamond E, VS1

      Est.
      $8,090 - $9,249
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 1.01 ct. Natural Emerald Cut Loose Diamond I, VS2
      Estimate
      $3,580 - $4,750

      GIA 1.01 ct. Natural Emerald Cut Loose Diamond I, VS2

      Est.
      $3,580 - $4,750
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $500
      Click Here to Bid Live
    • GIA 1.51 ct. Natural Cushion Modified Loose Diamond D, VS1
      Estimate
      $11,970 - $13,120

      GIA 1.51 ct. Natural Cushion Modified Loose Diamond D, VS1

      Est.
      $11,970 - $13,120
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 1.71 ct. Natural Emerald Cut Loose Diamond H, SI-1
      Estimate
      $8,700 - $10,220

      GIA 1.71 ct. Natural Emerald Cut Loose Diamond H, SI-1

      Est.
      $8,700 - $10,220
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $500
      Click Here to Bid Live
    • 14kt. Fancy Colored Diamond Ring - GIA
      Estimate
      $2,000 - $4,000

      14kt. Fancy Colored Diamond Ring - GIA

      Est.
      $2,000 - $4,000
      Brunk Auctions
      2 Bids
      Current Bid
      $2,400
      Click Here to Bid Live
    • Antique GIA Natural Burma No Heat Sapphire Fine Old Mine Diamond Star Brooch Pin
      Estimate
      $5,000 - $8,000

      Antique GIA Natural Burma No Heat Sapphire Fine Old Mine Diamond Star Brooch Pin

      Est.
      $5,000 - $8,000
      Hess Fine Art
      0 Bids
      Starting Bid
      $10
      Click Here to Bid Live
    • 18kt. Alexandrite Bypass Diamond Ring - GIA
      Estimate
      $6,000 - $9,000

      18kt. Alexandrite Bypass Diamond Ring - GIA

      Est.
      $6,000 - $9,000
      Brunk Auctions
      0 Bids
      Starting Bid
      $3,000
      Click Here to Bid Live
    • Platinum Three Stone Diamond Ring - GIA
      Estimate
      $1,800 - $2,400

      Platinum Three Stone Diamond Ring - GIA

      Est.
      $1,800 - $2,400
      Brunk Auctions
      0 Bids
      Starting Bid
      $900
      Click Here to Bid Live
    • 1930s Art Deco GIA Natural Colombian Emerald Antique Platinum Fine Diamond Ring
      Estimate
      $2,000 - $3,000

      1930s Art Deco GIA Natural Colombian Emerald Antique Platinum Fine Diamond Ring

      Est.
      $2,000 - $3,000
      Hess Fine Art
      0 Bids
      Starting Bid
      $10
      Click Here to Bid Live
    • Breathtaking GIA No Treatment Natural 3CT Colombian Emerald Fine Diamond 18k White Gold Ring
      Estimate
      $20,000 - $30,000

      Breathtaking GIA No Treatment Natural 3CT Colombian Emerald Fine Diamond 18k White Gold Ring

      Est.
      $20,000 - $30,000
      Hess Fine Art
      0 Bids
      Starting Bid
      $10
      Click Here to Bid Live
    • 1.87 CT Rare GIA Kashmir Sapphire Fine Diamond Filigree Ring
      Estimate
      $100 - $1,000

      1.87 CT Rare GIA Kashmir Sapphire Fine Diamond Filigree Ring

      Est.
      $100 - $1,000
      Hess Fine Art
      0 Bids
      Starting Bid
      $10
      Click Here to Bid Live
    • GIA 35.44 ct. Oval Cut Kunzite & Diamond Cocktail Ring Set in Platinum
      Estimate
      $13,750 - $16,350

      GIA 35.44 ct. Oval Cut Kunzite & Diamond Cocktail Ring Set in Platinum

      Est.
      $13,750 - $16,350
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • 18kt. Blue Sapphire and Diamond Ring - GIA
      Estimate
      $4,000 - $6,000

      18kt. Blue Sapphire and Diamond Ring - GIA

      Est.
      $4,000 - $6,000
      Brunk Auctions
      2 Bids
      Current Bid
      $2,600
      Click Here to Bid Live
    • GIA 3.37 ct. Natural Round Diamonds Wedding Ring Set in Platinum
      Estimate
      $28,677 - $31,582

      GIA 3.37 ct. Natural Round Diamonds Wedding Ring Set in Platinum

      Est.
      $28,677 - $31,582
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • Platinum Paraiba Type Tourmaline and Diamond Three Stone Ring - GIA
      Estimate
      $6,000 - $9,000

      Platinum Paraiba Type Tourmaline and Diamond Three Stone Ring - GIA

      Est.
      $6,000 - $9,000
      Brunk Auctions
      1 Bid
      Current Bid
      $3,000
      Click Here to Bid Live
    • 14kt. Paraiba Type Tourmaline and Diamond Halo Ring - GIA
      Estimate
      $10,000 - $15,000

      14kt. Paraiba Type Tourmaline and Diamond Halo Ring - GIA

      Est.
      $10,000 - $15,000
      Brunk Auctions
      0 Bids
      Starting Bid
      $5,000
      Click Here to Bid Live
    • 14kt. Solitaire Yellow Diamond Pendant - GIA
      Estimate
      $6,000 - $9,000

      14kt. Solitaire Yellow Diamond Pendant - GIA

      Est.
      $6,000 - $9,000
      Brunk Auctions
      2 Bids
      Current Bid
      $3,250
      Click Here to Bid Live
    • GIA Natural Colombian Emerald Fine Diamond Exquisite Art Deco Platinum Numbered Ring
      Estimate
      $18,000 - $29,000

      GIA Natural Colombian Emerald Fine Diamond Exquisite Art Deco Platinum Numbered Ring

      Est.
      $18,000 - $29,000
      Hess Fine Art
      2 Bids
      Current Bid
      $70
      Click Here to Bid Live
    • GIA Natural 1.00 ct. Round Brilliant D VVS2
      Estimate
      $8,190 - $10,770

      GIA Natural 1.00 ct. Round Brilliant D VVS2

      Est.
      $8,190 - $10,770
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $500
      Click Here to Bid Live
    • GIA Natural 1.00 ct. Round Brilliant E, VVS2
      Estimate
      $7,190 - $9,370

      GIA Natural 1.00 ct. Round Brilliant E, VVS2

      Est.
      $7,190 - $9,370
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $500
      Click Here to Bid Live
    • 14kt. Mid Century Ballerina Style Diamond Ring - GIA
      Estimate
      $20,000 - $30,000

      14kt. Mid Century Ballerina Style Diamond Ring - GIA

      Est.
      $20,000 - $30,000
      Brunk Auctions
      1 Bid
      Current Bid
      $10,000
      Click Here to Bid Live
    • 14kt. Paraiba Type Tourmaline Split Shank Diamond Ring - GIA
      Estimate
      $8,000 - $12,000

      14kt. Paraiba Type Tourmaline Split Shank Diamond Ring - GIA

      Est.
      $8,000 - $12,000
      Brunk Auctions
      1 Bid
      Current Bid
      $4,000
      Click Here to Bid Live
    • 18kt. Paraiba Type Tourmaline and Diamond Fashion Ring - GAL - GIA
      Estimate
      $6,000 - $9,000

      18kt. Paraiba Type Tourmaline and Diamond Fashion Ring - GAL - GIA

      Est.
      $6,000 - $9,000
      Brunk Auctions
      0 Bids
      Starting Bid
      $3,000
      Click Here to Bid Live
    • GIA 1.24 ct. No Heat Madagascar Sapphire & Diamond Ring Set in Platinum
      Estimate
      $3,803 - $4,759

      GIA 1.24 ct. No Heat Madagascar Sapphire & Diamond Ring Set in Platinum

      Est.
      $3,803 - $4,759
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $750
      Click Here to Bid Live
    • GIA 4.29 ct. Oval Cut Sapphire & Diamond Cocktail Ring Set in Platinum
      Estimate
      $8,968 - $11,360

      GIA 4.29 ct. Oval Cut Sapphire & Diamond Cocktail Ring Set in Platinum

      Est.
      $8,968 - $11,360
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • 14kt. Paraiba Type Tourmaline and Diamond Double Prong Ring - GIA
      Estimate
      $6,000 - $9,000

      14kt. Paraiba Type Tourmaline and Diamond Double Prong Ring - GIA

      Est.
      $6,000 - $9,000
      Brunk Auctions
      1 Bid
      Current Bid
      $3,000
      Click Here to Bid Live
    • 14kt. Old European Cut Diamond Halo Ring - GIA
      Estimate
      $8,000 - $12,000

      14kt. Old European Cut Diamond Halo Ring - GIA

      Est.
      $8,000 - $12,000
      Brunk Auctions
      0 Bids
      Starting Bid
      $4,000
      Click Here to Bid Live
    • 14kt. Old Mine Cut Diamond Drop Earrings - GIA
      Estimate
      $1,800 - $2,400

      14kt. Old Mine Cut Diamond Drop Earrings - GIA

      Est.
      $1,800 - $2,400
      Brunk Auctions
      3 Bids
      Current Bid
      $1,200
      Click Here to Bid Live
    • GIA 1.76 ct. Emerald Diamond Wedding Ring set in Platinum
      Estimate
      $11,475 - $13,770

      GIA 1.76 ct. Emerald Diamond Wedding Ring set in Platinum

      Est.
      $11,475 - $13,770
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • 18kt. Paraiba Type Tourmaline and Baguette Diamond Tutu Style Ring - GIA
      Estimate
      $6,000 - $9,000

      18kt. Paraiba Type Tourmaline and Baguette Diamond Tutu Style Ring - GIA

      Est.
      $6,000 - $9,000
      Brunk Auctions
      1 Bid
      Current Bid
      $3,000
      Click Here to Bid Live
    • GIA 2.34 ct. No Heat Sri Lanka Sapphire & Diamond Fashion Ring Set in Platinum
      Estimate
      $7,616 - $9,488

      GIA 2.34 ct. No Heat Sri Lanka Sapphire & Diamond Fashion Ring Set in Platinum

      Est.
      $7,616 - $9,488
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $1,250
      Click Here to Bid Live
    • Genuine Gioielleria Baleani Trilogy GIA Diamond 18k White Gold 3 Stone Ring w/ Box & Papers
      Estimate
      $4,000 - $6,000

      Genuine Gioielleria Baleani Trilogy GIA Diamond 18k White Gold 3 Stone Ring w/ Box & Papers

      Est.
      $4,000 - $6,000
      Hess Fine Art
      0 Bids
      Starting Bid
      $10
      Click Here to Bid Live
    • GIA 3.49 ct. Colombia Emerald & Diamond Fashion Ring Set in Platinum
      Estimate
      $12,429 - $14,925

      GIA 3.49 ct. Colombia Emerald & Diamond Fashion Ring Set in Platinum

      Est.
      $12,429 - $14,925
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 12.15 ct. Burma Ruby & Diamond Bracelet Set in 18K White Gold
      Estimate
      $16,695 - $19,875

      GIA 12.15 ct. Burma Ruby & Diamond Bracelet Set in 18K White Gold

      Est.
      $16,695 - $19,875
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 1.62 ct. Asscher Cut Diamond Engagement Ring set in Platinum
      Estimate
      $10,475 - $12,580

      GIA 1.62 ct. Asscher Cut Diamond Engagement Ring set in Platinum

      Est.
      $10,475 - $12,580
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $2,500
      Click Here to Bid Live
    • GIA 3.51 ct. Natural Round Diamonds Cluster Ring in 14k Yellow Gold
      Estimate
      $10,795 - $12,500

      GIA 3.51 ct. Natural Round Diamonds Cluster Ring in 14k Yellow Gold

      Est.
      $10,795 - $12,500
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $1,000
      Click Here to Bid Live
    • GIA 1.50 ct. No Oil Colombian Emerald & Diamond Ring Set in 18K White Gold
      Estimate
      $26,751 - $31,847

      GIA 1.50 ct. No Oil Colombian Emerald & Diamond Ring Set in 18K White Gold

      Est.
      $26,751 - $31,847
      Reserve Stock Auctions
      0 Bids
      Starting Bid
      $5,000
      Click Here to Bid Live