1406 Results
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  • 14 KT GOLD & GEMSTONE VINTAGE LRG CHARM SLIDE BRACELET
    Estimate
    $4,500 - $5,500

    14 KT GOLD & GEMSTONE VINTAGE LRG CHARM SLIDE BRACELET

    Est.
    $4,500 - $5,500
    Dovetails LLC DBA Auctions ...
    Starting Bid
    $2,300
  • CARTIER 18K WHITE GOLD MUTI-GEMSTONE NECKLACE
    Estimate
    $4,200 - $16,800

    CARTIER 18K WHITE GOLD MUTI-GEMSTONE NECKLACE

    Est.
    $4,200 - $16,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • DAVID YURMAN 18K YELLOW GOLD MULTI-GEMSTONE NECKLACE
    Estimate
    $5,500 - $22,000

    DAVID YURMAN 18K YELLOW GOLD MULTI-GEMSTONE NECKLACE

    Est.
    $5,500 - $22,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $5,500
  • 18K ROSE GOLD BLUE-GEMSTONE SCULPTURAL COCKTAIL RING
    Estimate
    $1,600 - $6,400

    18K ROSE GOLD BLUE-GEMSTONE SCULPTURAL COCKTAIL RING

    Est.
    $1,600 - $6,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • GUCCI HORSEBIT 18K YELLOW GOLD PURPLE GEMSTONE DANGLE EARRINGS
    Estimate
    $1,600 - $6,400

    GUCCI HORSEBIT 18K YELLOW GOLD PURPLE GEMSTONE DANGLE EARRINGS

    Est.
    $1,600 - $6,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • IO SI 18K WHITE GOLD 0.02CT DIAMOND AND BLUE GEMSTONE EARRINGS
    Estimate
    $1,200 - $4,800

    IO SI 18K WHITE GOLD 0.02CT DIAMOND AND BLUE GEMSTONE EARRINGS

    Est.
    $1,200 - $4,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,200
  • ANTONINI 18K YELLOW GOLD GEMSTONE PIN
    Estimate
    $1,300 - $5,200

    ANTONINI 18K YELLOW GOLD GEMSTONE PIN

    Est.
    $1,300 - $5,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,300
  • 14K WHITE GOLD 0.08CT DIAMOND AND SAPPHIRE PENDANT NECKLACE
    Estimate
    $280 - $1,120

    14K WHITE GOLD 0.08CT DIAMOND AND SAPPHIRE PENDANT NECKLACE

    Est.
    $280 - $1,120
    Robinhood Auctions
    0 Bids
    Starting Bid
    $280
  • 18K Gold 16mm South Sea Pearl Diamond Pendant
    Estimate
    $400 - $600

    18K Gold 16mm South Sea Pearl Diamond Pendant

    Est.
    $400 - $600
    Farber Auctioneers and Appr...
    1 Bid
    Current Bid
    $225
  • 18K Gold Platinum Diamond Bracelet
    Estimate
    $2,600 - $3,400

    18K Gold Platinum Diamond Bracelet

    Est.
    $2,600 - $3,400
    Farber Auctioneers and Appr...
    0 Bids
    Starting Bid
    $1,600
  • Platinum Diamond 3.85ct Black Opal Ring
    Estimate
    $2,400 - $3,500

    Platinum Diamond 3.85ct Black Opal Ring

    Est.
    $2,400 - $3,500
    Farber Auctioneers and Appr...
    0 Bids
    Starting Bid
    $1,200
  • 18K Gold Diamond Pink Sapphire Ring
    Estimate
    $3,500 - $4,500

    18K Gold Diamond Pink Sapphire Ring

    Est.
    $3,500 - $4,500
    Farber Auctioneers and Appr...
    1 Bid
    Current Bid
    $2,200
  • 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
  • GEORG JENSEN VIVIANNA SILVER AMETHYST AND DIAMOND PENDANT
    Estimate
    $160 - $640

    GEORG JENSEN VIVIANNA SILVER AMETHYST AND DIAMOND PENDANT

    Est.
    $160 - $640
    Robinhood Auctions
    0 Bids
    Starting Bid
    $160
  • PLATINUM 14.40CT AQUAMARINE PENDANT
    Estimate
    $2,000 - $8,000

    PLATINUM 14.40CT AQUAMARINE PENDANT

    Est.
    $2,000 - $8,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,000
  • 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
  • 14K YELLOW GOLD DIAMOND AND RUBY RETRO BROOCH
    Estimate
    $2,600 - $10,400

    14K YELLOW GOLD DIAMOND AND RUBY RETRO BROOCH

    Est.
    $2,600 - $10,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,600
  • PLATINUM 0.50CT DIAMOND AND EMERALD RING
    Estimate
    $7,000 - $28,000

    PLATINUM 0.50CT DIAMOND AND EMERALD RING

    Est.
    $7,000 - $28,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,000
  • VINTAGE PLATINUM 1.0CT DIAMOND AND SAPPHIRE BROOCH
    Estimate
    $1,400 - $5,600

    VINTAGE PLATINUM 1.0CT DIAMOND AND SAPPHIRE BROOCH

    Est.
    $1,400 - $5,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  • PLATINUM 1.25CT DIAMOND AND DEMANTOID RING
    Estimate
    $1,800 - $7,200

    PLATINUM 1.25CT DIAMOND AND DEMANTOID RING

    Est.
    $1,800 - $7,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,800
  • 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
  • GIA Natrual No Heat Burma Ruby Antique Yellow Gold Bangle Bracelet
    Estimate
    $10,000 - $15,000

    GIA Natrual No Heat Burma Ruby Antique Yellow Gold Bangle Bracelet

    Est.
    $10,000 - $15,000
    Hess Fine Art
    1 Bid
    Current Bid
    $10
  • ANTIQUE VICTORIAN 14K WHITE GOLD AND SILVER CAMEO RING
    Estimate
    $1,100 - $4,400

    ANTIQUE VICTORIAN 14K WHITE GOLD AND SILVER CAMEO RING

    Est.
    $1,100 - $4,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,100
  • ANTIQUE 18K YELLOW GOLD AMETHYST AND SEED PEARL EARRINGS
    Estimate
    $2,400 - $9,600

    ANTIQUE 18K YELLOW GOLD AMETHYST AND SEED PEARL EARRINGS

    Est.
    $2,400 - $9,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,400
  • IPPOLITA 18K YELLOW GOLD TOPAZ EARRINGS
    Estimate
    $1,400 - $5,600

    IPPOLITA 18K YELLOW GOLD TOPAZ EARRINGS

    Est.
    $1,400 - $5,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  • PLATINUM 2.40CT DIAMOND COCKTAIL RING
    Estimate
    $1,900 - $7,600

    PLATINUM 2.40CT DIAMOND COCKTAIL RING

    Est.
    $1,900 - $7,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,900
  • 18K YELLOW GOLD DIAMOND AND 1.79CT EMERALD RING
    Estimate
    $4,200 - $16,800

    18K YELLOW GOLD DIAMOND AND 1.79CT EMERALD RING

    Est.
    $4,200 - $16,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • PLATINUM 0.62CT DIAMOND AND SAPPHIRE RING
    Estimate
    $3,000 - $12,000

    PLATINUM 0.62CT DIAMOND AND SAPPHIRE RING

    Est.
    $3,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,000
  • JOHN HARDY 18K WHITE AND YELLOW GOLD 4.0CT AQUAMARINE PENDANT
    Estimate
    $1,600 - $6,400

    JOHN HARDY 18K WHITE AND YELLOW GOLD 4.0CT AQUAMARINE PENDANT

    Est.
    $1,600 - $6,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • PLATINUM 0.80CT DIAMOND AND RHODOLITE GARNET PENDANT NECKLACE
    Estimate
    $1,500 - $6,000

    PLATINUM 0.80CT DIAMOND AND RHODOLITE GARNET PENDANT NECKLACE

    Est.
    $1,500 - $6,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,500
  • 18K WHITE GOLD 3.0CT EMERALD AND RUBY RING
    Estimate
    $3,000 - $12,000

    18K WHITE GOLD 3.0CT EMERALD AND RUBY RING

    Est.
    $3,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,000
  • ANTIQUE PLATINUM 1.85CT RUBY RING
    Estimate
    $2,800 - $11,200

    ANTIQUE PLATINUM 1.85CT RUBY RING

    Est.
    $2,800 - $11,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,800
  • 14K YELLOW GOLD 0.92CT DIAMOND AND TANZANITE RING
    Estimate
    $3,300 - $13,200

    14K YELLOW GOLD 0.92CT DIAMOND AND TANZANITE RING

    Est.
    $3,300 - $13,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 14K WHITE GOLD 2.0CT DIAMOND AND CITRINE BROOCH
    Estimate
    $3,300 - $13,200

    14K WHITE GOLD 2.0CT DIAMOND AND CITRINE BROOCH

    Est.
    $3,300 - $13,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • GUCCI HORSEBIT 18K YELLOW GOLD SMOKY QUARTZ RING
    Estimate
    $3,300 - $13,200

    GUCCI HORSEBIT 18K YELLOW GOLD SMOKY QUARTZ RING

    Est.
    $3,300 - $13,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • FRED OF PARIS BELLES RIVES 18K YELLOW GOLD LONDON BLUE TOPAZ RING
    Estimate
    $700 - $2,800

    FRED OF PARIS BELLES RIVES 18K YELLOW GOLD LONDON BLUE TOPAZ RING

    Est.
    $700 - $2,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $700
  • PLATINUM 1.0CT DIAMOND AND SAPPHIRE RING
    Estimate
    $5,000 - $20,000

    PLATINUM 1.0CT DIAMOND AND SAPPHIRE RING

    Est.
    $5,000 - $20,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $5,000
  • GUCCI HORSEBIT 18K WHITE GOLD 1.20CT DIAMOND AND WHITE TOPAZ EARRINGS
    Estimate
    $4,500 - $18,000

    GUCCI HORSEBIT 18K WHITE GOLD 1.20CT DIAMOND AND WHITE TOPAZ EARRINGS

    Est.
    $4,500 - $18,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • PLATINUM 0.90CT DIAMOND AND SAPPHIRE RING
    Estimate
    $3,300 - $13,200

    PLATINUM 0.90CT DIAMOND AND SAPPHIRE RING

    Est.
    $3,300 - $13,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 18K WHITE GOLD 2.50CT DIAMOND AND RUBELLITE EARRINGS
    Estimate
    $4,200 - $16,800

    18K WHITE GOLD 2.50CT DIAMOND AND RUBELLITE EARRINGS

    Est.
    $4,200 - $16,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 18K YELLOW GOLD 0.45CT DIAMOND AND EMERALD RING
    Estimate
    $2,400 - $9,600

    18K YELLOW GOLD 0.45CT DIAMOND AND EMERALD RING

    Est.
    $2,400 - $9,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,400
  • 14K YELLOW GOLD 0.65CT DIAMOND AND RUBY RING
    Estimate
    $3,600 - $14,400

    14K YELLOW GOLD 0.65CT DIAMOND AND RUBY RING

    Est.
    $3,600 - $14,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,600
  • 18K ROSE GOLD 1.50CT DIAMOND AND RUBY PENDANT
    Estimate
    $3,300 - $13,200

    18K ROSE GOLD 1.50CT DIAMOND AND RUBY PENDANT

    Est.
    $3,300 - $13,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • PLATINUM 1.76CT DIAMOND AND RUBY RING
    Estimate
    $3,600 - $14,400

    PLATINUM 1.76CT DIAMOND AND RUBY RING

    Est.
    $3,600 - $14,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,600
  • 18K WHITE GOLD 0.80CT DIAMOND BROOCH
    Estimate
    $1,600 - $6,400

    18K WHITE GOLD 0.80CT DIAMOND BROOCH

    Est.
    $1,600 - $6,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • 18K WHITE GOLD 1.30CT DIAMOND AND EMERALD RING
    Estimate
    $4,800 - $19,200

    18K WHITE GOLD 1.30CT DIAMOND AND EMERALD RING

    Est.
    $4,800 - $19,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,800
  • 18K WHITE GOLD 0.57CT DIAMOND AND RUBY RING
    Estimate
    $1,700 - $6,800

    18K WHITE GOLD 0.57CT DIAMOND AND RUBY RING

    Est.
    $1,700 - $6,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700
  • 18K YELLOW GOLD 2.0CT DIAMOND RING
    Estimate
    $9,000 - $36,000

    18K YELLOW GOLD 2.0CT DIAMOND RING

    Est.
    $9,000 - $36,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $9,000

Looking as lovely as when set in jewelry, loose diamonds and gemstones offer consumers additional benefits of matching the unmounted stone to desired specifications and quality characteristics to create a truly unique piece of custom jewelry, such as an engagement ring or milestone gift. Indulge yourself in a world of stunning diamond collections to glistening gemstones dating from the 19th to 21st century on Bidsquare, the online auction site providing authentic gemstone diamonds straight to consumers from verified sellers all over the world.

Basics of Loose Diamonds
Loose diamonds are diamonds that have not been set into jewelry like rings or earrings. The rarity and beauty of diamonds are affected by many variables, including Cut, Color, Clarity, and Carat Weight, the 4Cs factors that determine the price of the unmounted stone. Wholesale diamonds are priced by carat, and loose diamond prices grow exponentially with every full carat. Hence, the price difference between 2.9 carat and 3.1 carat diamonds could be hundreds of dollars, if not higher.

Although all 4Cs contribute to a diamond's beauty, cut and clarity have a greater effect on a diamond's stability. A diamond's cut refers to the shape and also the proportions in which the diamond has been cut. Different diamond shapes are reflections of the proportions and quality of the rough diamond as well as popular taste. Some of the most popular shapes of diamonds are the Round, Oval, Emerald, Baguette, Marquise Square, Princess cuts, in addition to the availability of various specialty shapes. Diamonds with pointed tips should be stored and handled carefully. Clarity is determined by the presence or absence of visible flaws in the diamond. A diamond's brilliance can be altered by surface blemishes or internal inclusions, which directly impact its value. The least color diamonds are more valuable, the exceptions are the colored diamonds, especially the pinks.

Loose certified diamonds come with verifiable documentation attesting to the jewel's quality, whether purchased as an investment or for mounting. The price of loose diamonds for sale is 50-70% less than its retail price because of cutting unnecessary costs as with mounted stones. Assessing the quality is easier with loose diamonds due to difficulty in hiding imperfections that would otherwise be easy with mountings.

Quick facts about Loose Diamonds and Gemstones

  • A diamond is not always white in color.
  • The cutting process can cause a diamond to lose up to 50% of its weight.

 

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