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  • ESTATE UNMOUNTED TOURMALINE GEMSTONE, 12.45CTS
    Estimate
    $300 - $600

    ESTATE UNMOUNTED TOURMALINE GEMSTONE, 12.45CTS

    Est.
    $300 - $600
    Austin Auction Gallery
    1 Bid
    Current Bid
    $200
  • ESTATE UNMOUNTED WELO OPAL GEMSTONE, 25.70CTS
    Estimate
    $400 - $800

    ESTATE UNMOUNTED WELO OPAL GEMSTONE, 25.70CTS

    Est.
    $400 - $800
    Austin Auction Gallery
    1 Bid
    Current Bid
    $300
  • ESTATE UNMOUNTED CUSHION-CUT TANANITE GEMSTONE, 9.00CTS
    Estimate
    $500 - $1,000

    ESTATE UNMOUNTED CUSHION-CUT TANANITE GEMSTONE, 9.00CTS

    Est.
    $500 - $1,000
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $400
  • ESTATE UNMOUNTED TEAR-SHAPED WELO OPAL GEMSTONE, 26.50CTS
    Estimate
    $400 - $800

    ESTATE UNMOUNTED TEAR-SHAPED WELO OPAL GEMSTONE, 26.50CTS

    Est.
    $400 - $800
    Austin Auction Gallery
    1 Bid
    Current Bid
    $300
  • ESTATE UNMOUNTED TOURMALINE GEMSTONE, 20.30CTS
    Estimate
    $400 - $800

    ESTATE UNMOUNTED TOURMALINE GEMSTONE, 20.30CTS

    Est.
    $400 - $800
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $350
  • (2) ESTATE YELLOW GOLD, DRUZY STONE & GEMSTONE COCKTAIL RINGS
    Estimate
    $400 - $800

    (2) ESTATE YELLOW GOLD, DRUZY STONE & GEMSTONE COCKTAIL RINGS

    Est.
    $400 - $800
    Austin Auction Gallery
    1 Bid
    Current Bid
    $375
  • 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
  • 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
  • DE GRISOGONO 18K WHITE GOLD RUBY AND PERIDOT EARRINGS
    Estimate
    $7,500 - $15,000

    DE GRISOGONO 18K WHITE GOLD RUBY AND PERIDOT EARRINGS

    Est.
    $7,500 - $15,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,500
  • PLATINUM 2.15CT DIAMOND AND EMERALD RING
    Estimate
    $7,000 - $14,000

    PLATINUM 2.15CT DIAMOND AND EMERALD RING

    Est.
    $7,000 - $14,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,000
  • 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
  • Art Deco Platinum Diamond Emerald Pendant Necklace
    Estimate
    $2,000 - $3,000

    Art Deco Platinum Diamond Emerald Pendant Necklace

    Est.
    $2,000 - $3,000
    Farber Auctioneers and Appr...
    0 Bids
    Starting Bid
    $1,000
  • Marco Bicego Jaipur 18k Gold Circle Earrings
    Estimate
    $1,400 - $2,800

    Marco Bicego Jaipur 18k Gold Circle Earrings

    Est.
    $1,400 - $2,800
    Farber Auctioneers and Appr...
    1 Bid
    Current Bid
    $700
  • 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
  • ANTIQUE 14K YELLOW GOLD AMETHYST EARRINGS
    Estimate
    $1,700 - $3,400

    ANTIQUE 14K YELLOW GOLD AMETHYST EARRINGS

    Est.
    $1,700 - $3,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700
  • 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
  • 14K YELLOW GOLD DIAMOND AND RUBY RETRO BROOCH
    Estimate
    $2,600 - $5,200

    14K YELLOW GOLD DIAMOND AND RUBY RETRO BROOCH

    Est.
    $2,600 - $5,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,600
  • PLATINUM 0.84CT DIAMOND AND SAPPHIRE RING
    Estimate
    $1,900 - $3,800

    PLATINUM 0.84CT DIAMOND AND SAPPHIRE RING

    Est.
    $1,900 - $3,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,900
  • PLATINUM 2.30CT DIAMOND AND SAPPHIRE NECKLACE
    Estimate
    $4,200 - $8,400

    PLATINUM 2.30CT DIAMOND AND SAPPHIRE NECKLACE

    Est.
    $4,200 - $8,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • PLATINUM 1.39CT DIAMOND AND SAPPHIRE EARRINGS
    Estimate
    $2,600 - $5,200

    PLATINUM 1.39CT DIAMOND AND SAPPHIRE EARRINGS

    Est.
    $2,600 - $5,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,600
  • DE GRISOGONO ACCESSOIRE 18K WHITE GOLD FULL WHITE AND BLACK DIAMONDS TUXEDO TOGGLE BUTTONS SET
    Estimate
    $6,000 - $12,000

    DE GRISOGONO ACCESSOIRE 18K WHITE GOLD FULL WHITE AND BLACK DIAMONDS TUXEDO TOGGLE BUTTONS SET

    Est.
    $6,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $6,000
  • 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
  • 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
  • 18K WHITE GOLD 2.20CT DIAMOND BROOCH
    Estimate
    $2,000 - $4,000

    18K WHITE GOLD 2.20CT DIAMOND BROOCH

    Est.
    $2,000 - $4,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,000
  • 18K YELLOW GOLD DIAMOND, EMERALD, AND PEARL CATERPILLAR BROOCH
    Estimate
    $1,100 - $2,200

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

    Est.
    $1,100 - $2,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,100
  • ESTATE 18KT YELLOW GOLD, DIAMOND & PINK TOURMALINE RING
    Estimate
    $800 - $1,200

    ESTATE 18KT YELLOW GOLD, DIAMOND & PINK TOURMALINE RING

    Est.
    $800 - $1,200
    Austin Auction Gallery
    1 Bid
    Current Bid
    $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 0.80CT DIAMOND AND RHODOLITE GARNET PENDANT NECKLACE
    Estimate
    $1,500 - $3,000

    PLATINUM 0.80CT DIAMOND AND RHODOLITE GARNET PENDANT NECKLACE

    Est.
    $1,500 - $3,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,500
  • 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
  • ESTATE ART DECO STYLE 14KT WHITE GOLD, EMERALD & DIAMOND RING
    Estimate
    $500 - $1,000

    ESTATE ART DECO STYLE 14KT WHITE GOLD, EMERALD & DIAMOND RING

    Est.
    $500 - $1,000
    Austin Auction Gallery
    1 Bid
    Current Bid
    $450
  • 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
  • BVLGARI PARENTESI 18K WHITE GOLD DIAMOND AND TOPAZ CLIP-ON EARRINGS
    Estimate
    $3,800 - $7,600

    BVLGARI PARENTESI 18K WHITE GOLD DIAMOND AND TOPAZ CLIP-ON EARRINGS

    Est.
    $3,800 - $7,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,800
  • 18K YELLOW GOLD PERIDOT, AQUAMARINE, AND CITRINE NECKLACE
    Estimate
    $12,000 - $24,000

    18K YELLOW GOLD PERIDOT, AQUAMARINE, AND CITRINE NECKLACE

    Est.
    $12,000 - $24,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $12,000
  • PLATINUM 0.34CT DIAMOND AND RUBY RING
    Estimate
    $2,400 - $4,800

    PLATINUM 0.34CT DIAMOND AND RUBY RING

    Est.
    $2,400 - $4,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,400
  • 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
  • 14K WHITE GOLD 2.0CT DIAMOND AND CITRINE BROOCH
    Estimate
    $3,300 - $6,600

    14K WHITE GOLD 2.0CT DIAMOND AND CITRINE BROOCH

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 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
  • 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 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
  • PLATINUM 1.80CT DIAMOND AND TANZANITE RING
    Estimate
    $3,300 - $6,600

    PLATINUM 1.80CT DIAMOND AND TANZANITE RING

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • ESTATE 18KT WHITE GOLD, DIAMOND & RUBY BROOCH
    Estimate
    $500 - $1,000

    ESTATE 18KT WHITE GOLD, DIAMOND & RUBY BROOCH

    Est.
    $500 - $1,000
    Austin Auction Gallery
    2 Bids
    Current Bid
    $475
  • 14K YELLOW GOLD 0.15CT DIAMOND AND RUBY PENDANT NECKLACE
    Estimate
    $390 - $780

    14K YELLOW GOLD 0.15CT DIAMOND AND RUBY PENDANT NECKLACE

    Est.
    $390 - $780
    Robinhood Auctions
    0 Bids
    Starting Bid
    $390
  • 18K WHITE GOLD 0.80CT DIAMOND BROOCH
    Estimate
    $1,600 - $3,200

    18K WHITE GOLD 0.80CT DIAMOND BROOCH

    Est.
    $1,600 - $3,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • PLATINUM 6.25CT DIAMOND AND RUBY BROOCH
    Estimate
    $12,000 - $24,000

    PLATINUM 6.25CT DIAMOND AND RUBY BROOCH

    Est.
    $12,000 - $24,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $12,000
  • 14K YELLOW GOLD 0.01CT DIAMOND AND RHODOLITE FLOWER NECKLACE
    Estimate
    $260 - $520

    14K YELLOW GOLD 0.01CT DIAMOND AND RHODOLITE FLOWER NECKLACE

    Est.
    $260 - $520
    Robinhood Auctions
    0 Bids
    Starting Bid
    $260
  • 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
  • ESTATE 14KT ROSE GOLD, BICOLOR TOURMALINE & DIAMOND RING
    Estimate
    $1,000 - $2,000

    ESTATE 14KT ROSE GOLD, BICOLOR TOURMALINE & DIAMOND RING

    Est.
    $1,000 - $2,000
    Austin Auction Gallery
    1 Bid
    Current Bid
    $500
  • 14K YELLOW GOLD 0.13CT DIAMOND AND GARNET PENDANT NECKLACE
    Estimate
    $340 - $680

    14K YELLOW GOLD 0.13CT DIAMOND AND GARNET PENDANT NECKLACE

    Est.
    $340 - $680
    Robinhood Auctions
    0 Bids
    Starting Bid
    $340

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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