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  • Van Cleef & Arpels Vintage Alhambra Silver Obsidian 5 Motif 18K Rose Gold Bracelet
    Estimate
    $5,500 - $7,500

    Van Cleef & Arpels Vintage Alhambra Silver Obsidian 5 Motif 18K Rose Gold Bracelet

    Est.
    $5,500 - $7,500
    Victorins Auctions
    0 Bids
    Starting Bid
    $1,500
  • Van Cleef & Arpels Vintage Alhambra Green Malachite 18K Yellow Gold Earrings
    Estimate
    $3,000 - $5,000

    Van Cleef & Arpels Vintage Alhambra Green Malachite 18K Yellow Gold Earrings

    Est.
    $3,000 - $5,000
    Victorins Auctions
    0 Bids
    Starting Bid
    $800
  • 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
    $12,500
  • 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
    $2,500
  • 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
    $2,500
  • 14K Gemstone Bracelet
    Estimate
    $600 - $900

    14K Gemstone Bracelet

    Est.
    $600 - $900
    Vogt Auction
    1 Bid
    Current Bid
    $300
  • Sterling Silver Gemstone Pendant Necklace
    Estimate
    $200 - $300

    Sterling Silver Gemstone Pendant Necklace

    Est.
    $200 - $300
    Vogt Auction
    0 Bids
    Starting Bid
    $100
  • Sterling Silver Gemstone Cross Pendant Necklace
    Estimate
    $200 - $300

    Sterling Silver Gemstone Cross Pendant Necklace

    Est.
    $200 - $300
    Vogt Auction
    0 Bids
    Starting Bid
    $100
  • 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
  • 14K Diamond Gemstone Ring
    Estimate
    $600 - $900

    14K Diamond Gemstone Ring

    Est.
    $600 - $900
    Vogt Auction
    0 Bids
    Starting Bid
    $300
  • 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
  • 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
  • 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
  • Sterling Silver Bracelet with Multicolor Stones
    Estimate
    $300 - $500

    Sterling Silver Bracelet with Multicolor Stones

    Est.
    $300 - $500
    Vogt Auction
    1 Bid
    Current Bid
    $150
  • 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
  • LE VIAN 18K YELLOW GOLD 2.0CT DIAMOND AND RUBY RING
    Estimate
    $3,300 - $6,600

    LE VIAN 18K YELLOW GOLD 2.0CT DIAMOND AND RUBY RING

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 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
  • Mens14 Kt Gold Plated 5.75 Cwt. Simulated Diamond Ring
    Estimate
    $300 - $400

    Mens14 Kt Gold Plated 5.75 Cwt. Simulated Diamond Ring

    Est.
    $300 - $400
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 14K Pearl Necklace
    Estimate
    $400 - $600

    14K Pearl Necklace

    Est.
    $400 - $600
    Vogt Auction
    1 Bid
    Current Bid
    $200
  • 14KT White Gold 2.02ctw Tanzanite and Diamond Pendant
    Estimate
    $3,500 - $4,500

    14KT White Gold 2.02ctw Tanzanite and Diamond Pendant

    Est.
    $3,500 - $4,500
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 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
  • 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
    $5,000
  • Sterling Silver 18.00ctw Moissanite Bracelet
    Estimate
    $3,000 - $4,000

    Sterling Silver 18.00ctw Moissanite Bracelet

    Est.
    $3,000 - $4,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • PLATINUM 7.40CT DIAMOND AND OPAL NECKLACE
    Estimate
    $9,000 - $18,000

    PLATINUM 7.40CT DIAMOND AND OPAL NECKLACE

    Est.
    $9,000 - $18,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $9,000
  • 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
  • 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
  • H. STERN 18K YELLOW GOLD TOURMALINE EARRINGS
    Estimate
    $1,900 - $3,800

    H. STERN 18K YELLOW GOLD TOURMALINE EARRINGS

    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
  • 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
  • 14K YELLOW GOLD 0.13CT DIAMOND AND AMETHYST PENDANT NECKLACE
    Estimate
    $360 - $720

    14K YELLOW GOLD 0.13CT DIAMOND AND AMETHYST PENDANT NECKLACE

    Est.
    $360 - $720
    Robinhood Auctions
    0 Bids
    Starting Bid
    $360
  • 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
  • PLATINUM 0.78CT DIAMOND AND PERIDOT RING
    Estimate
    $2,400 - $4,800

    PLATINUM 0.78CT DIAMOND AND PERIDOT RING

    Est.
    $2,400 - $4,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,400
  • 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
  • PLATINUM 0.75CT DIAMOND AND AQUAMARINE RING
    Estimate
    $1,600 - $3,200

    PLATINUM 0.75CT DIAMOND AND AQUAMARINE RING

    Est.
    $1,600 - $3,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • 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
  • 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 0.15CT 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
  • GRAFF 18K YELLOW GOLD 2.26CT DIAMOND AND EMERALD RING
    Estimate
    $6,500 - $13,000

    GRAFF 18K YELLOW GOLD 2.26CT DIAMOND AND EMERALD RING

    Est.
    $6,500 - $13,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $6,500
  • 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 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 WHITE GOLD 0.08 CT DIAMOND AND RUBY NECKLACE
    Estimate
    $280 - $560

    14K WHITE GOLD 0.08 CT DIAMOND AND RUBY NECKLACE

    Est.
    $280 - $560
    Robinhood Auctions
    0 Bids
    Starting Bid
    $280
  • 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
  • CELLINO 18K YELLOW GOLD 1.70CT DIAMOND, AMETHYST, AND CITRINE RING
    Estimate
    $4,500 - $9,000

    CELLINO 18K YELLOW GOLD 1.70CT DIAMOND, AMETHYST, AND CITRINE RING

    Est.
    $4,500 - $9,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • PLATINUM 0.38CT DIAMOND AND SAPPHIRE PENDANT
    Estimate
    $450 - $900

    PLATINUM 0.38CT DIAMOND AND SAPPHIRE PENDANT

    Est.
    $450 - $900
    Robinhood Auctions
    0 Bids
    Starting Bid
    $450
  • 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
  • 14K WHITE GOLD 0.05CT DIAMOND AND GARNET PENDANT NECKLACE
    Estimate
    $280 - $560

    14K WHITE GOLD 0.05CT DIAMOND AND GARNET PENDANT NECKLACE

    Est.
    $280 - $560
    Robinhood Auctions
    0 Bids
    Starting Bid
    $280
  • 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
  • 14K YELLOW GOLD 1.80CT DIAMOND AND MALACHITE BRACELET
    Estimate
    $3,300 - $6,600

    14K YELLOW GOLD 1.80CT DIAMOND AND MALACHITE BRACELET

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300

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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