1097 Results
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  • 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
  • AGLS 4.75 ct. Loose Natural Padparadscha Sapphire
    Estimate
    $78,743 - $83,125

    AGLS 4.75 ct. Loose Natural Padparadscha Sapphire

    Est.
    $78,743 - $83,125
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $5,000
  • GIA 2.14 ct. Extremely Rare Natural Color Change Russian Alexandrite
    Estimate
    $203,300 - $224,700

    GIA 2.14 ct. Extremely Rare Natural Color Change Russian Alexandrite

    Est.
    $203,300 - $224,700
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $5,000
  • GIA 19.49 ct. Tanzanite & Diamond Ring in 14k White Gold
    Estimate
    $21,475 - $24,911

    GIA 19.49 ct. Tanzanite & Diamond Ring in 14k White Gold

    Est.
    $21,475 - $24,911
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $1,000
  • Gemstone and Gold Rings
    Estimate
    $400 - $600

    Gemstone and Gold Rings

    Est.
    $400 - $600
    Kodner Galleries
    1 Bid
    Current Bid
    $200
  • 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
  • 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
  • 18K WHITE GOLD FLORAL GEMSTONE PAVE DOME RING
    Estimate
    $3,300 - $13,200

    18K WHITE GOLD FLORAL GEMSTONE PAVE DOME RING

    Est.
    $3,300 - $13,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 18K YELLOW GOLD 3.0CT AQUAMARINE AND CITRINE RING
    Estimate
    $1,400 - $5,600

    18K YELLOW GOLD 3.0CT AQUAMARINE AND CITRINE RING

    Est.
    $1,400 - $5,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  • 6.0mm Round Ruby Screw Back Stud Earrings (JUL) in 14K Yellow Gold
    Estimate
    $1,289 - $1,759

    6.0mm Round Ruby Screw Back Stud Earrings (JUL) in 14K Yellow Gold

    Est.
    $1,289 - $1,759
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • Antique 18K Gold Coral Beads Necklace
    Estimate
    $400 - $800

    Antique 18K Gold Coral Beads Necklace

    Est.
    $400 - $800
    Farber Auctioneers and Appr...
    1 Bid
    Current Bid
    $200
  • (6) Sterling & Multi-Stone Rings
    Estimate
    $200 - $500

    (6) Sterling & Multi-Stone Rings

    Est.
    $200 - $500
    Vogt Auction
    0 Bids
    Starting Bid
    $100
  • 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
  • 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
  • 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
  • 21k Gold Old Euro Diamond Ultra Finely Detailed Very Art Nouveau Cameo Brooch
    Estimate
    $3,000 - $5,000

    21k Gold Old Euro Diamond Ultra Finely Detailed Very Art Nouveau Cameo Brooch

    Est.
    $3,000 - $5,000
    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
    2 Bids
    Current Bid
    $375
  • Tampa Bay Buccaneers 2020 Super Bowl Solid Gold Fine Diamond Ring w Original Box
    Estimate
    $12,000 - $15,000

    Tampa Bay Buccaneers 2020 Super Bowl Solid Gold Fine Diamond Ring w Original Box

    Est.
    $12,000 - $15,000
    Hess Fine Art
    0 Bids
    Starting Bid
    $10
  • 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
    2 Bids
    Current Bid
    $20
  • SINGLE ROW 18K WHITE GOLD DIAMOND AND EMERALD BANGLE
    Estimate
    $4,200 - $16,800

    SINGLE ROW 18K WHITE GOLD DIAMOND AND EMERALD BANGLE

    Est.
    $4,200 - $16,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 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
  • GIA 10.91 ct. Tanzanite & Diamond Cocktail Ring Set in 18k Yellow Gold
    Estimate
    $21,970 - $23,889

    GIA 10.91 ct. Tanzanite & Diamond Cocktail Ring Set in 18k Yellow Gold

    Est.
    $21,970 - $23,889
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA 47.54ct Natural Burmese Ruby 8.43ctw Fine Diamond Platinum Oscar Friedman Necklace w/ Appraisal
    Estimate
    $10,000 - $15,000

    GIA 47.54ct Natural Burmese Ruby 8.43ctw Fine Diamond Platinum Oscar Friedman Necklace w/ Appraisal

    Est.
    $10,000 - $15,000
    Hess Fine Art
    0 Bids
    Starting Bid
    $10
  • 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
  • ANTIQUE 14K YELLOW GOLD AMETHYST EARRINGS
    Estimate
    $1,700 - $6,800

    ANTIQUE 14K YELLOW GOLD AMETHYST EARRINGS

    Est.
    $1,700 - $6,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700
  • 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
  • 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
    2 Bids
    Current Bid
    $20
  • PLATINUM 2.0CT DIAMOND AND RUBY PENDANT
    Estimate
    $4,500 - $18,000

    PLATINUM 2.0CT DIAMOND AND RUBY PENDANT

    Est.
    $4,500 - $18,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • 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
  • 14K WHITE GOLD 3.50CT DIAMOND PENDANT
    Estimate
    $1,700 - $6,800

    14K WHITE GOLD 3.50CT DIAMOND PENDANT

    Est.
    $1,700 - $6,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700
  • 18K WHITE GOLD 18.80CT DIAMOND NECKLACE
    Estimate
    $12,000 - $48,000

    18K WHITE GOLD 18.80CT DIAMOND NECKLACE

    Est.
    $12,000 - $48,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $12,000
  • HERMES KELLY 18K ROSE GOLD SPINEL BRACELET
    Estimate
    $13,000 - $52,000

    HERMES KELLY 18K ROSE GOLD SPINEL BRACELET

    Est.
    $13,000 - $52,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $13,000
  • 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
  • PLATINUM 2.30CT DIAMOND AND SAPPHIRE NECKLACE
    Estimate
    $4,200 - $16,800

    PLATINUM 2.30CT DIAMOND AND SAPPHIRE NECKLACE

    Est.
    $4,200 - $16,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 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
  • 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
  • PLATINUM 0.25CT DIAMOND AND RUBY PENDANT
    Estimate
    $550 - $2,200

    PLATINUM 0.25CT DIAMOND AND RUBY PENDANT

    Est.
    $550 - $2,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $550
  • 18K YELLOW GOLD DIAMOND, EMERALD, AND PEARL CATERPILLAR BROOCH
    Estimate
    $1,100 - $4,400

    18K YELLOW GOLD DIAMOND, EMERALD, AND PEARL CATERPILLAR BROOCH

    Est.
    $1,100 - $4,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,100
  • 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
  • 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
  • 14K WHITE GOLD 5.75CT DIAMOND HOOP EARRINGS
    Estimate
    $4,800 - $19,200

    14K WHITE GOLD 5.75CT DIAMOND HOOP EARRINGS

    Est.
    $4,800 - $19,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,800
  • Incredible GIA Burma No Heat Sapphire Fine Diamond Moonstone 14k Yellow Rose Gold Retro Deco Flower Brooch
    Estimate
    $2,000 - $3,000

    Incredible GIA Burma No Heat Sapphire Fine Diamond Moonstone 14k Yellow Rose Gold Retro Deco Flower Brooch

    Est.
    $2,000 - $3,000
    Hess Fine Art
    2 Bids
    Current Bid
    $600
  • PLATINUM 1.60CT DIAMOND AND RUBY RING
    Estimate
    $3,000 - $12,000

    PLATINUM 1.60CT DIAMOND AND RUBY RING

    Est.
    $3,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,000
  • 18K WHITE GOLD 1.10CT DIAMOND AND TANZANITE RING
    Estimate
    $4,500 - $18,000

    18K WHITE GOLD 1.10CT DIAMOND AND TANZANITE RING

    Est.
    $4,500 - $18,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • 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

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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