GIA Diamond Jewelry

93517 Results
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  • GIA 16mm Natural Australian Opal Emerald Fine Diamond Heavy 18k Gold Signed Midcentury Ring
    Estimate
    $2,500 - $3,500

    GIA 16mm Natural Australian Opal Emerald Fine Diamond Heavy 18k Gold Signed Midcentury Ring

    Est.
    $2,500 - $3,500
    Hess Fine Art
    1 Bid
    Current Bid
    $10
  • 2.2ct Old Euro Diamond GIA 1ct Natural Ruby Vintage 18k Gold Ring
    Estimate
    $2,000 - $3,000

    2.2ct Old Euro Diamond GIA 1ct Natural Ruby Vintage 18k Gold Ring

    Est.
    $2,000 - $3,000
    Hess Fine Art
    1 Bid
    Current Bid
    $10
  • Stunning Approx. 6ct Natural Emerald 2ctw+ Fine Diamond Midcentury Chevron Necklace
    Estimate
    $5,000 - $7,000

    Stunning Approx. 6ct Natural Emerald 2ctw+ Fine Diamond Midcentury Chevron Necklace

    Est.
    $5,000 - $7,000
    Hess Fine Art
    1 Bid
    Current Bid
    $10
  • 7.92ctw Gem Quality Tanzanite 14k White Gold 0.23ctw Diamond Designer Signed Bangle Bracelet
    Estimate
    $1,500 - $2,000

    7.92ctw Gem Quality Tanzanite 14k White Gold 0.23ctw Diamond Designer Signed Bangle Bracelet

    Est.
    $1,500 - $2,000
    Hess Fine Art
    1 Bid
    Current Bid
    $10
  • 1940s Fine Untreated Jadeite Jade 18k White Gold Diamond Pendant on Platinum Necklace Chain w/ Orig Box
    Estimate
    $1,500 - $2,000

    1940s Fine Untreated Jadeite Jade 18k White Gold Diamond Pendant on Platinum Necklace Chain w/ Orig Box

    Est.
    $1,500 - $2,000
    Hess Fine Art
    1 Bid
    Current Bid
    $10
  • 2.68ct Sapphire VS Diamond 14k White Gold Ring
    Estimate
    $3,000 - $6,000

    2.68ct Sapphire VS Diamond 14k White Gold Ring

    Est.
    $3,000 - $6,000
    North American Auction Comp...
    1 Bid
    Current Bid
    $600
  • Platinum GIA Diamond Stud Earrings
    Estimate
    $1,000 - $2,000

    Platinum GIA Diamond Stud Earrings

    Est.
    $1,000 - $2,000
    Vogt Auction
    0 Bids
    Starting Bid
    $500
  • GIA Emerald, Diamond and Plat. Ring
    Estimate
    $30,000 - $40,000

    GIA Emerald, Diamond and Plat. Ring

    Est.
    $30,000 - $40,000
    Kodner Galleries
    0 Bids
    Starting Bid
    $15,000
  • Platinum GIA Diamond Stud Earrings
    Estimate
    $1,000 - $2,000

    Platinum GIA Diamond Stud Earrings

    Est.
    $1,000 - $2,000
    Vogt Auction
    0 Bids
    Starting Bid
    $500
  • GIA 8.88ct Diamond and Platinum Ring
    Estimate
    $80,000 - $120,000

    GIA 8.88ct Diamond and Platinum Ring

    Est.
    $80,000 - $120,000
    Kodner Galleries
    0 Bids
    Starting Bid
    $40,000
  • Natural GIA Columbian Emerald Art Deco Fine Diamond Vintage Cocktail Ring
    Estimate
    $3,500 - $4,500

    Natural GIA Columbian Emerald Art Deco Fine Diamond Vintage Cocktail Ring

    Est.
    $3,500 - $4,500
    Hess Fine Art
    0 Bids
    Starting Bid
    $10
  • GIA 5.03 ct Emerald & Diamond Ring
    Estimate
    $4,000 - $6,000

    GIA 5.03 ct Emerald & Diamond Ring

    Est.
    $4,000 - $6,000
    Vogt Auction
    0 Bids
    Starting Bid
    $2,000
  • GIA RARE NO Heat Ruby Diamond Platinum Ring
    Estimate
    $12,000 - $22,000

    GIA RARE NO Heat Ruby Diamond Platinum Ring

    Est.
    $12,000 - $22,000
    North American Auction Comp...
    0 Bids
    Starting Bid
    $2,300
  • Stunning 4.26ctw GIA Natural Fancy Colored Diamond 18k Gold Eternity Band Ring
    Estimate
    $5,000 - $7,000

    Stunning 4.26ctw GIA Natural Fancy Colored Diamond 18k Gold Eternity Band Ring

    Est.
    $5,000 - $7,000
    Hess Fine Art
    0 Bids
    Starting Bid
    $10
  • GIA Colombian Emerald VS2 Diamond Platinum Ring
    Estimate
    $10,000 - $15,000

    GIA Colombian Emerald VS2 Diamond Platinum Ring

    Est.
    $10,000 - $15,000
    North American Auction Comp...
    0 Bids
    Starting Bid
    $2,300
  • GIA 8.35 CT Aquamarine and Diamond Ring
    Estimate
    $1,000 - $2,000

    GIA 8.35 CT Aquamarine and Diamond Ring

    Est.
    $1,000 - $2,000
    Vogt Auction
    0 Bids
    Starting Bid
    $500
  • GIA 3.99 CT Sapphire & Diamond Ring
    Estimate
    $2,000 - $4,000

    GIA 3.99 CT Sapphire & Diamond Ring

    Est.
    $2,000 - $4,000
    Vogt Auction
    0 Bids
    Starting Bid
    $1,000
  • Vintage 18K/Palladium GIA Diamond Ring
    Estimate
    $3,000 - $5,000

    Vintage 18K/Palladium GIA Diamond Ring

    Est.
    $3,000 - $5,000
    Vogt Auction
    0 Bids
    Starting Bid
    $1,500
  • 57.10 ct Emerald Cut Natural Diamonds (GIA Graded) Layout Set. Appraised Value: $233,000
    Estimate
    $158,000 - $196,000

    57.10 ct Emerald Cut Natural Diamonds (GIA Graded) Layout Set. Appraised Value: $233,000

    Est.
    $158,000 - $196,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $95,000
    Buy Now Price
    $130,000
  • GIA RARE Burmese Ruby VS2 Diamond Platinum Ring
    Estimate
    $15,000 - $25,000

    GIA RARE Burmese Ruby VS2 Diamond Platinum Ring

    Est.
    $15,000 - $25,000
    North American Auction Comp...
    0 Bids
    Starting Bid
    $2,500
  • 37.10 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $236,000
    Estimate
    $160,000 - $198,000

    37.10 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $236,000

    Est.
    $160,000 - $198,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $95,000
    Buy Now Price
    $130,000
  • 26.80 ct Emerald Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $93,000
    Estimate
    $62,000 - $78,000

    26.80 ct Emerald Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $93,000

    Est.
    $62,000 - $78,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $38,000
    Buy Now Price
    $50,000
  • 24.10 ct Round Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $349,000
    Estimate
    $236,000 - $293,000

    24.10 ct Round Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $349,000

    Est.
    $236,000 - $293,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $140,000
    Buy Now Price
    $190,000
  • 33.90 ct Marquise Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $192,000
    Estimate
    $130,000 - $162,000

    33.90 ct Marquise Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $192,000

    Est.
    $130,000 - $162,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $80,000
    Buy Now Price
    $110,000
  • 44.01 ct Oval Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $502,000
    Estimate
    $341,000 - $422,000

    44.01 ct Oval Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $502,000

    Est.
    $341,000 - $422,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $210,000
    Buy Now Price
    $280,000
  • 38.10 ct Round Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $231,000
    Estimate
    $157,000 - $195,000

    38.10 ct Round Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $231,000

    Est.
    $157,000 - $195,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $95,000
    Buy Now Price
    $130,000
  • 23.50 ct Emerald Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $171,000
    Estimate
    $116,000 - $144,000

    23.50 ct Emerald Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $171,000

    Est.
    $116,000 - $144,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $70,000
    Buy Now Price
    $95,000
  • 42.02 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $263,000
    Estimate
    $178,000 - $221,000

    42.02 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $263,000

    Est.
    $178,000 - $221,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $110,000
    Buy Now Price
    $150,000
  • 54.57 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $297,000
    Estimate
    $201,000 - $250,000

    54.57 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $297,000

    Est.
    $201,000 - $250,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $120,000
    Buy Now Price
    $160,000
  • 46.50 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $221,000
    Estimate
    $149,000 - $186,000

    46.50 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $221,000

    Est.
    $149,000 - $186,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $90,000
    Buy Now Price
    $120,000
  • 33.77 ct Heart Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $146,000
    Estimate
    $98,000 - $123,000

    33.77 ct Heart Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $146,000

    Est.
    $98,000 - $123,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $60,000
    Buy Now Price
    $80,000
  • 86.50 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $454,000
    Estimate
    $308,000 - $381,000

    86.50 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $454,000

    Est.
    $308,000 - $381,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $190,000
    Buy Now Price
    $250,000
  • 50.90 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $247,000
    Estimate
    $167,000 - $208,000

    50.90 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $247,000

    Est.
    $167,000 - $208,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $100,000
    Buy Now Price
    $140,000
  • 34.60 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $157,000
    Estimate
    $106,000 - $132,000

    34.60 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $157,000

    Est.
    $106,000 - $132,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $65,000
    Buy Now Price
    $85,000
  • 48.20 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $373,000
    Estimate
    $253,000 - $313,000

    48.20 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $373,000

    Est.
    $253,000 - $313,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $150,000
    Buy Now Price
    $200,000
  • 40.20 ct Marquise Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $289,000
    Estimate
    $196,000 - $243,000

    40.20 ct Marquise Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $289,000

    Est.
    $196,000 - $243,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $120,000
    Buy Now Price
    $160,000
  • 31.90 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $147,000
    Estimate
    $99,000 - $124,000

    31.90 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $147,000

    Est.
    $99,000 - $124,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $60,000
    Buy Now Price
    $80,000
  • 40.00 ct Round Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $211,000
    Estimate
    $143,000 - $177,000

    40.00 ct Round Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $211,000

    Est.
    $143,000 - $177,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $85,000
    Buy Now Price
    $120,000
  • 38.79 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $280,000
    Estimate
    $190,000 - $236,000

    38.79 ct Pear Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $280,000

    Est.
    $190,000 - $236,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $120,000
    Buy Now Price
    $160,000
  • 31.90 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $134,000
    Estimate
    $90,000 - $113,000

    31.90 ct Princess Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $134,000

    Est.
    $90,000 - $113,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $55,000
    Buy Now Price
    $75,000
  • 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
  • 46.30 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $207,000
    Estimate
    $140,000 - $174,000

    46.30 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $207,000

    Est.
    $140,000 - $174,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $85,000
    Buy Now Price
    $120,000
  • 36.56 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $184,000
    Estimate
    $124,000 - $155,000

    36.56 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $184,000

    Est.
    $124,000 - $155,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $75,000
    Buy Now Price
    $100,000
  • 27.20 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $196,000
    Estimate
    $133,000 - $165,000

    27.20 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $196,000

    Est.
    $133,000 - $165,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $80,000
    Buy Now Price
    $110,000
  • 29.50 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $136,000
    Estimate
    $92,000 - $115,000

    29.50 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $136,000

    Est.
    $92,000 - $115,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $55,000
    Buy Now Price
    $75,000
  • 37.05 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $171,000
    Estimate
    $115,000 - $143,000

    37.05 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $171,000

    Est.
    $115,000 - $143,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $70,000
    Buy Now Price
    $95,000
  • 68.20 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $330,000
    Estimate
    $223,000 - $277,000

    68.20 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $330,000

    Est.
    $223,000 - $277,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $140,000
    Buy Now Price
    $190,000
  • 64.02 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $460,000
    Estimate
    $312,000 - $387,000

    64.02 ct Multi Cut Natural Diamonds (GIA Graded) Necklace Layout Set. Appraised Value: $460,000

    Est.
    $312,000 - $387,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $190,000
    Buy Now Price
    $250,000