890 Results
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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
    1 Bid
    Current Bid
    $1
  • 14KT Yellow Gold 1.9ctw Aquamarine and Diamond Ring
    Estimate
    $3,500 - $4,500

    14KT Yellow Gold 1.9ctw Aquamarine and Diamond Ring

    Est.
    $3,500 - $4,500
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT White Gold 2.6ctw Blue Sapphire and Diamond Earrings
    Estimate
    $4,000 - $5,000

    14KT White Gold 2.6ctw Blue Sapphire and Diamond Earrings

    Est.
    $4,000 - $5,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT Yellow Gold 1.95ctw London Blue Topaz and Diamond Pendant
    Estimate
    $3,000 - $4,000

    14KT Yellow Gold 1.95ctw London Blue Topaz and Diamond Pendant

    Est.
    $3,000 - $4,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT White Gold 0.90ct Blue Sapphire and Diamond Ring
    Estimate
    $3,000 - $4,000

    14KT White Gold 0.90ct Blue Sapphire and Diamond Ring

    Est.
    $3,000 - $4,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT Yellow Gold 0.95ct Ruby and Diamond Ring
    Estimate
    $3,000 - $4,000

    14KT Yellow Gold 0.95ct Ruby and Diamond Ring

    Est.
    $3,000 - $4,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT Yellow Gold 2.2ctw London Blue Topaz and Diamond Earrings
    Estimate
    $3,000 - $4,000

    14KT Yellow Gold 2.2ctw London Blue Topaz and Diamond Earrings

    Est.
    $3,000 - $4,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT White Gold 3.85ctw Peridot and Diamond Ring
    Estimate
    $4,000 - $5,000

    14KT White Gold 3.85ctw Peridot and Diamond Ring

    Est.
    $4,000 - $5,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14KT White Gold 1.3ct Blue Sapphire and Diamond Ring
    Estimate
    $4,000 - $5,000

    14KT White Gold 1.3ct Blue Sapphire and Diamond Ring

    Est.
    $4,000 - $5,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • Ladies' Pair of Gold and Natural Sphene Gemstones Ear Studs
    Estimate
    $600 - $800

    Ladies' Pair of Gold and Natural Sphene Gemstones Ear Studs

    Est.
    $600 - $800
    Aspire Auctions
    0 Bids
    Starting Bid
    $5
  • ANTONINI 18K YELLOW GOLD GEMSTONE PIN
    Estimate
    $1,300 - $2,600

    ANTONINI 18K YELLOW GOLD GEMSTONE PIN

    Est.
    $1,300 - $2,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,300
  • 6.38 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,000 - $4,100

    6.38 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,000 - $4,100
    Lab Grown Auctions
    1 Bid
    Current Bid
    $2,200
  • 18K YELLOW GOLD 3.0CT AQUAMARINE AND CITRINE RING
    Estimate
    $1,400 - $2,800

    18K YELLOW GOLD 3.0CT AQUAMARINE AND CITRINE RING

    Est.
    $1,400 - $2,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  • 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
  • PLATINUM 1.40CT DIAMOND, RUBY, EMERALD, AND SAPPHIRE BROOCH
    Estimate
    $6,000 - $12,000

    PLATINUM 1.40CT DIAMOND, RUBY, EMERALD, AND SAPPHIRE BROOCH

    Est.
    $6,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $6,000
  • CASATO 18K ROSE GOLD 0.78CT DIAMOND AND AMETHYST RING
    Estimate
    $1,700 - $3,400

    CASATO 18K ROSE GOLD 0.78CT DIAMOND AND AMETHYST RING

    Est.
    $1,700 - $3,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700
  • John Hardy Pair of 18K Gold, Sterling Silver and Blue Topaz Oversized Earrings
    Estimate
    $300 - $500

    John Hardy Pair of 18K Gold, Sterling Silver and Blue Topaz Oversized Earrings

    Est.
    $300 - $500
    Aspire Auctions
    0 Bids
    Starting Bid
    $5
  • 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
  • GEORG JENSEN VIVIANNA SILVER AMETHYST AND DIAMOND PENDANT
    Estimate
    $160 - $320

    GEORG JENSEN VIVIANNA SILVER AMETHYST AND DIAMOND PENDANT

    Est.
    $160 - $320
    Robinhood Auctions
    0 Bids
    Starting Bid
    $160
  • PLATINUM 14.40CT AQUAMARINE PENDANT
    Estimate
    $2,000 - $4,000

    PLATINUM 14.40CT AQUAMARINE PENDANT

    Est.
    $2,000 - $4,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,000
  • ANTIQUE 14K ROSE GOLD GARNET BRACELET
    Estimate
    $1,700 - $3,400

    ANTIQUE 14K ROSE GOLD GARNET BRACELET

    Est.
    $1,700 - $3,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700
  • CARTIER PANTHERE 18K WHITE GOLD CUFFLINKS
    Estimate
    $7,000 - $14,000

    CARTIER PANTHERE 18K WHITE GOLD CUFFLINKS

    Est.
    $7,000 - $14,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,000
  • 18K WHITE GOLD 18.80CT DIAMOND NECKLACE
    Estimate
    $12,000 - $24,000

    18K WHITE GOLD 18.80CT DIAMOND NECKLACE

    Est.
    $12,000 - $24,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $12,000
  • ANTIQUE 18K WHITE GOLD 2.0CT DIAMOND AND TURQUOISE BROOCH
    Estimate
    $4,500 - $9,000

    ANTIQUE 18K WHITE GOLD 2.0CT DIAMOND AND TURQUOISE BROOCH

    Est.
    $4,500 - $9,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • 18K YELLOW GOLD 12.60CT TOURMALINE AND OPAL RING
    Estimate
    $3,800 - $7,600

    18K YELLOW GOLD 12.60CT TOURMALINE AND OPAL RING

    Est.
    $3,800 - $7,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,800
  • PLATINUM 0.26CT DIAMOND AND SAPPHIRE RING
    Estimate
    $1,100 - $2,200

    PLATINUM 0.26CT DIAMOND AND SAPPHIRE RING

    Est.
    $1,100 - $2,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,100
  • 18K WHITE GOLD 3.0CT EMERALD AND RUBY RING
    Estimate
    $3,000 - $6,000

    18K WHITE GOLD 3.0CT EMERALD AND RUBY RING

    Est.
    $3,000 - $6,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,000
  • 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
  • PLATINUM 5.45CT DIAMOND AND RUBY EARRINGS
    Estimate
    $7,500 - $15,000

    PLATINUM 5.45CT DIAMOND AND RUBY EARRINGS

    Est.
    $7,500 - $15,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,500
  • CASATO 18K YELLOW GOLD DIAMOND AND CHALCEDONY DROP EARRINGS
    Estimate
    $1,500 - $3,000

    CASATO 18K YELLOW GOLD DIAMOND AND CHALCEDONY DROP EARRINGS

    Est.
    $1,500 - $3,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,500
  • 18K YELLOW GOLD 2.10CT DIAMOND RING
    Estimate
    $1,900 - $3,800

    18K YELLOW GOLD 2.10CT DIAMOND RING

    Est.
    $1,900 - $3,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,900
  • 14K WHITE GOLD 5.75CT DIAMOND HOOP EARRINGS
    Estimate
    $4,800 - $9,600

    14K WHITE GOLD 5.75CT DIAMOND HOOP EARRINGS

    Est.
    $4,800 - $9,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,800
  • 18K YELLOW GOLD 1.80CT DIAMOND AND CORAL EARRINGS
    Estimate
    $3,800 - $7,600

    18K YELLOW GOLD 1.80CT DIAMOND AND CORAL EARRINGS

    Est.
    $3,800 - $7,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,800
  • 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
  • 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 2.90CT DIAMOND AND BURMA RUBY RING
    Estimate
    $19,000 - $38,000

    PLATINUM 2.90CT DIAMOND AND BURMA RUBY RING

    Est.
    $19,000 - $38,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $19,000
  • 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
  • 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
  • 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
  • PLATINUM 1.37CT DIAMOND AND RUBY RING
    Estimate
    $4,200 - $8,400

    PLATINUM 1.37CT DIAMOND AND RUBY RING

    Est.
    $4,200 - $8,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 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
  • 18K WHITE GOLD 1.10CT DIAMOND AND TANZANITE RING
    Estimate
    $4,500 - $9,000

    18K WHITE GOLD 1.10CT DIAMOND AND TANZANITE RING

    Est.
    $4,500 - $9,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • PLATINUM 0.60CT DIAMOND AND RUBY RING
    Estimate
    $2,400 - $4,800

    PLATINUM 0.60CT DIAMOND AND RUBY RING

    Est.
    $2,400 - $4,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,400
  • PLATINUM 0.30CT DIAMOND AND SAPPHIRE PENDANT NECKLACE
    Estimate
    $600 - $1,200

    PLATINUM 0.30CT DIAMOND AND SAPPHIRE PENDANT NECKLACE

    Est.
    $600 - $1,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $600
  • 18K YELLOW GOLD 1.30CT DIAMOND AND RUBY BAND RING
    Estimate
    $2,800 - $5,600

    18K YELLOW GOLD 1.30CT DIAMOND AND RUBY BAND RING

    Est.
    $2,800 - $5,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,800
  • 14K WHITE GOLD 1.50CT DIAMOND AND TURQUOISE RING
    Estimate
    $3,300 - $6,600

    14K WHITE GOLD 1.50CT DIAMOND AND TURQUOISE RING

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 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 WHITE GOLD 0.50CT DIAMOND AND COLOMBIAN EMERALD RING
    Estimate
    $4,500 - $9,000

    18K WHITE GOLD 0.50CT DIAMOND AND COLOMBIAN EMERALD RING

    Est.
    $4,500 - $9,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500

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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