684 Results
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  • GIA 2.14 ct. Extremely Rare Natural Color Change Russian Alexandrite Heart Cut Gemstone
    Estimate
    $203,300 - $224,700

    GIA 2.14 ct. Extremely Rare Natural Color Change Russian Alexandrite Heart Cut Gemstone

    Est.
    $203,300 - $224,700
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $7,500
  • GIA 9.75 ct. Cushion Emerald & Diamond Cocktail Ring in 14k White Gold
    Estimate
    $32,475 - $37,595

    GIA 9.75 ct. Cushion Emerald & Diamond Cocktail Ring in 14k White Gold

    Est.
    $32,475 - $37,595
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $5,900
  • 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
    $7,500
  • 18K YELLOW GOLD 4.80CT DIAMOND AND COLORED GEMSTONE FLOWER EARRINGS
    Estimate
    $6,000 - $12,000

    18K YELLOW GOLD 4.80CT DIAMOND AND COLORED GEMSTONE FLOWER EARRINGS

    Est.
    $6,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $6,000
  • Two Gold Gemstone and Diamond Rings, Emerald and Blue Sapphire
    Estimate
    $600 - $900

    Two Gold Gemstone and Diamond Rings, Emerald and Blue Sapphire

    Est.
    $600 - $900
    Brunk Auctions
    3 Bids
    Current Bid
    $450
  • Three 14kt. Colored Gemstones and Diamond Halo Rings
    Estimate
    $1,200 - $1,800

    Three 14kt. Colored Gemstones and Diamond Halo Rings

    Est.
    $1,200 - $1,800
    Brunk Auctions
    0 Bids
    Starting Bid
    $600
  • DENISE ROBERGE 18K YELLOW GOLD MOONSTONE AND MULTICOLORED GEMSTONE CLIP-ON EARRINGS
    Estimate
    $6,500 - $13,000

    DENISE ROBERGE 18K YELLOW GOLD MOONSTONE AND MULTICOLORED GEMSTONE CLIP-ON EARRINGS

    Est.
    $6,500 - $13,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $6,500
  • Two 14kt. Gemstone and Diamond Fashion Rings, Emerald and Topaz
    Estimate
    $1,600 - $2,200

    Two 14kt. Gemstone and Diamond Fashion Rings, Emerald and Topaz

    Est.
    $1,600 - $2,200
    Brunk Auctions
    0 Bids
    Starting Bid
    $800
  • IO SI 18K WHITE GOLD 0.02CT DIAMOND AND BLUE GEMSTONE EARRINGS
    Estimate
    $1,200 - $2,400

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

    Est.
    $1,200 - $2,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,200
  • 4.04 ct. Natural Round Diamond Solitaire Ring in 18k Yellow Gold
    Estimate
    $59,990 - $67,690

    4.04 ct. Natural Round Diamond Solitaire Ring in 18k Yellow Gold

    Est.
    $59,990 - $67,690
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $10,000
  • 18K WHITE GOLD FLORAL GEMSTONE PAVE DOME RING
    Estimate
    $3,300 - $6,600

    18K WHITE GOLD FLORAL GEMSTONE PAVE DOME RING

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 14K WHITE GOLD 0.08CT DIAMOND AND SAPPHIRE PENDANT NECKLACE
    Estimate
    $280 - $560

    14K WHITE GOLD 0.08CT DIAMOND AND SAPPHIRE PENDANT NECKLACE

    Est.
    $280 - $560
    Robinhood Auctions
    0 Bids
    Starting Bid
    $280
  • 14KT White Gold 1.9ctw London Blue Topaz and Diamond Ring
    Estimate
    $3,000 - $4,000

    14KT White Gold 1.9ctw London Blue Topaz and Diamond Ring

    Est.
    $3,000 - $4,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT Yellow Gold 2ctw Zambian Emerald and Diamond Earrings
    Estimate
    $3,500 - $4,500

    14KT Yellow Gold 2ctw Zambian Emerald and Diamond Earrings

    Est.
    $3,500 - $4,500
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • Plated 18KT Yellow Gold 1.71ctw Dyed Emerald and White Topaz Jewelry Set
    Estimate
    $400 - $500

    Plated 18KT Yellow Gold 1.71ctw Dyed Emerald and White Topaz Jewelry Set

    Est.
    $400 - $500
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • SINGLE ROW 18K WHITE GOLD DIAMOND AND EMERALD BANGLE
    Estimate
    $4,200 - $8,400

    SINGLE ROW 18K WHITE GOLD DIAMOND AND EMERALD BANGLE

    Est.
    $4,200 - $8,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 14KT White Gold 1.09ct Tanzanite and Diamond Ring
    Estimate
    $2,000 - $3,000

    14KT White Gold 1.09ct Tanzanite and Diamond Ring

    Est.
    $2,000 - $3,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • GIA 10.91 ct. Bluish Violet Tanzanite & Diamond Cocktail Ring Set in 18k Yellow Gold
    Estimate
    $21,970 - $23,889

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

    Est.
    $21,970 - $23,889
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • CARTIER PANTHERE 18K WHITE GOLD RING
    Estimate
    $18,000 - $36,000

    CARTIER PANTHERE 18K WHITE GOLD RING

    Est.
    $18,000 - $36,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $18,000
  • ANTIQUE 18K YELLOW GOLD AMETHYST AND SEED PEARL EARRINGS
    Estimate
    $2,400 - $4,800

    ANTIQUE 18K YELLOW GOLD AMETHYST AND SEED PEARL EARRINGS

    Est.
    $2,400 - $4,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,400
  • CARTIER PANTHERE 18K YELLOW GOLD CUFFLINKS AND TUXEDO BUTTON SET
    Estimate
    $9,500 - $19,000

    CARTIER PANTHERE 18K YELLOW GOLD CUFFLINKS AND TUXEDO BUTTON SET

    Est.
    $9,500 - $19,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $9,500
  • 18K WHITE GOLD AND SILVER 2.20CT DIAMOND BROOCH
    Estimate
    $2,200 - $4,400

    18K WHITE GOLD AND SILVER 2.20CT DIAMOND BROOCH

    Est.
    $2,200 - $4,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,200
  • JOHN HARDY 18K WHITE AND YELLOW GOLD 4.0CT AQUAMARINE PENDANT
    Estimate
    $1,600 - $3,200

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

    Est.
    $1,600 - $3,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • 14K YELLOW GOLD DIAMOND, SAPPHIRE, AND RUBELLITE RING
    Estimate
    $2,000 - $4,000

    14K YELLOW GOLD DIAMOND, SAPPHIRE, AND RUBELLITE RING

    Est.
    $2,000 - $4,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,000
  • 18K YELLOW GOLD 1.10CT DIAMOND FLORAL BROOCH
    Estimate
    $1,800 - $3,600

    18K YELLOW GOLD 1.10CT DIAMOND FLORAL BROOCH

    Est.
    $1,800 - $3,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,800
  • VAN CLEEF & ARPELS VINTAGE 14K ROSE GOLD DIAMOND AND RUBY BROOCH
    Estimate
    $4,200 - $8,400

    VAN CLEEF & ARPELS VINTAGE 14K ROSE GOLD DIAMOND AND RUBY BROOCH

    Est.
    $4,200 - $8,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 14K YELLOW GOLD 0.22CT DIAMOND AND RUBY NECKLACE
    Estimate
    $450 - $900

    14K YELLOW GOLD 0.22CT DIAMOND AND RUBY NECKLACE

    Est.
    $450 - $900
    Robinhood Auctions
    0 Bids
    Starting Bid
    $450
  • 11.50CT BRIOLETTE DIAMOND, RUBY AND JADE TASSEL EARRINGS
    Estimate
    $8,000 - $16,000

    11.50CT BRIOLETTE DIAMOND, RUBY AND JADE TASSEL EARRINGS

    Est.
    $8,000 - $16,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $8,000
  • 14K WHITE GOLD 0.13CT DIAMOND AND AMETHYST PENDANT NECKLACE
    Estimate
    $340 - $680

    14K WHITE GOLD 0.13CT DIAMOND AND AMETHYST PENDANT NECKLACE

    Est.
    $340 - $680
    Robinhood Auctions
    0 Bids
    Starting Bid
    $340
  • 14K WHITE GOLD 0.22CT DIAMOND AND RUBY NECKLACE
    Estimate
    $450 - $900

    14K WHITE GOLD 0.22CT DIAMOND AND RUBY NECKLACE

    Est.
    $450 - $900
    Robinhood Auctions
    0 Bids
    Starting Bid
    $450
  • PLATINUM 0.34CT DIAMOND AND CATS EYE RING
    Estimate
    $1,100 - $2,200

    PLATINUM 0.34CT DIAMOND AND CATS EYE RING

    Est.
    $1,100 - $2,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,100
  • 14K WHITE GOLD 0.13CT DIAMOND AND GARNET PENDANT NECKLACE
    Estimate
    $340 - $680

    14K WHITE GOLD 0.13CT DIAMOND AND GARNET PENDANT NECKLACE

    Est.
    $340 - $680
    Robinhood Auctions
    0 Bids
    Starting Bid
    $340
  • 18K WHITE AND YELLOW GOLD AMETHYST RING
    Estimate
    $1,900 - $3,800

    18K WHITE AND YELLOW GOLD AMETHYST RING

    Est.
    $1,900 - $3,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,900
  • CHARLES KRYPELL 18K YELLOW GOLD 1.0CT DIAMOND AND RUBY BRACELET
    Estimate
    $4,200 - $8,400

    CHARLES KRYPELL 18K YELLOW GOLD 1.0CT DIAMOND AND RUBY BRACELET

    Est.
    $4,200 - $8,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 18K ROSE GOLD 1.50CT DIAMOND AND RUBY PENDANT
    Estimate
    $3,300 - $6,600

    18K ROSE GOLD 1.50CT DIAMOND AND RUBY PENDANT

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 18K YELLOW GOLD 1.0CT DIAMOND AND RUBY BRACELET
    Estimate
    $2,800 - $5,600

    18K YELLOW GOLD 1.0CT DIAMOND AND RUBY BRACELET

    Est.
    $2,800 - $5,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,800
  • 18K WHITE GOLD 0.60CT DIAMOND AND COLOMBIAN EMERALD RING
    Estimate
    $4,000 - $8,000

    18K WHITE GOLD 0.60CT DIAMOND AND COLOMBIAN EMERALD RING

    Est.
    $4,000 - $8,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,000
  • 14K YELLOW GOLD 0.05CT DIAMOND AND GARNET PENDANT NECKLACE
    Estimate
    $280 - $560

    14K YELLOW GOLD 0.05CT DIAMOND AND GARNET PENDANT NECKLACE

    Est.
    $280 - $560
    Robinhood Auctions
    0 Bids
    Starting Bid
    $280
  • 18K WHITE GOLD 11.0CT DIAMOND AND EMERALD BRACELET
    Estimate
    $14,000 - $28,000

    18K WHITE GOLD 11.0CT DIAMOND AND EMERALD BRACELET

    Est.
    $14,000 - $28,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $14,000
  • CHARLES KRYPELL 18K YELLOW GOLD 2.25CT DIAMOND AND RUBY RING
    Estimate
    $4,000 - $8,000

    CHARLES KRYPELL 18K YELLOW GOLD 2.25CT DIAMOND AND RUBY RING

    Est.
    $4,000 - $8,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,000
  • 18K ROSE GOLD 2.15CT DIAMOND AND SAPPHIRE EARRINGS
    Estimate
    $3,600 - $7,200

    18K ROSE GOLD 2.15CT DIAMOND AND SAPPHIRE EARRINGS

    Est.
    $3,600 - $7,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,600
  • 18K WHITE GOLD 1.10CT DIAMOND AND RUSSIAN EMERALD RING
    Estimate
    $11,000 - $22,000

    18K WHITE GOLD 1.10CT DIAMOND AND RUSSIAN EMERALD RING

    Est.
    $11,000 - $22,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $11,000
  • 14kt. Vintage Diamond Bow Motif Brooch
    Estimate
    $800 - $1,200

    14kt. Vintage Diamond Bow Motif Brooch

    Est.
    $800 - $1,200
    Brunk Auctions
    3 Bids
    Current Bid
    $1,200
  • 18K YELLOW GOLD 1.0CT DIAMOND, RUBY, AND PEARL CLIP-ON EARRINGS
    Estimate
    $4,500 - $9,000

    18K YELLOW GOLD 1.0CT DIAMOND, RUBY, AND PEARL CLIP-ON EARRINGS

    Est.
    $4,500 - $9,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • 14kt. Pinecone Brooch with Pearls and Emeralds
    Estimate
    $1,000 - $1,500

    14kt. Pinecone Brooch with Pearls and Emeralds

    Est.
    $1,000 - $1,500
    Brunk Auctions
    0 Bids
    Starting Bid
    $500
  • 14kt. Diamond and Emerald Tennis Bracelet
    Estimate
    $500 - $700

    14kt. Diamond and Emerald Tennis Bracelet

    Est.
    $500 - $700
    Brunk Auctions
    8 Bids
    Current Bid
    $600
  • 18kt. Diamond Open Work Bow Brooch
    Estimate
    $1,800 - $2,400

    18kt. Diamond Open Work Bow Brooch

    Est.
    $1,800 - $2,400
    Brunk Auctions
    2 Bids
    Current Bid
    $1,500
  • 18kt. Pave Diamond Fashion Ring
    Estimate
    $1,800 - $2,400

    18kt. Pave Diamond Fashion Ring

    Est.
    $1,800 - $2,400
    Brunk Auctions
    2 Bids
    Current Bid
    $1,000

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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