336 Results
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  •  10k Multi Color Gemstone Bracelet
    Estimate
    $200 - $400

    10k Multi Color Gemstone Bracelet

    Est.
    $200 - $400
    Circle Auction
    2 Bids
    Current Bid
    $200
  • 18K Hand Made Multi-Colored Gemstone Gold Pin/Brooch
    Estimate
    $1,400 - $1,800

    18K Hand Made Multi-Colored Gemstone Gold Pin/Brooch

    Est.
    $1,400 - $1,800
    SebastianCharles Auctions
    2 Bids
    Current Bid
    $1,050
  • CHARLES KELLER & CO CHARLES KELLER & CO DECO 14K YELLOW GOLD GEMSTONE BRACELET
    Estimate
    $1,600 - $3,200

    CHARLES KELLER & CO CHARLES KELLER & CO DECO 14K YELLOW...

    Est.
    $1,600 - $3,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • Galeria Cano Replica Pre-Columb Gemstone Jewelry Set
    Estimate
    $200 - $300

    Galeria Cano Replica Pre-Columb Gemstone Jewelry Set

    Est.
    $200 - $300
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $125
  • CHRISTIAN DIOR MILLY CARNIVORA 18K WHITE GOLD DIAMOND AND GEMSTONE LACQUERED RING
    Estimate
    $5,000 - $10,000

    CHRISTIAN DIOR MILLY CARNIVORA 18K WHITE GOLD DIAMOND A...

    Est.
    $5,000 - $10,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $5,000
  • 14K Gold Multi Gemstone & Diamond Earrings
    Estimate
    $300 - $500

    14K Gold Multi Gemstone & Diamond Earrings

    Est.
    $300 - $500
    SebastianCharles Auctions
    1 Bid
    Current Bid
    $100
  • Elegant Sterling Silver Amethyst & Citrine Rings
    Estimate
    $400 - $800

    Elegant Sterling Silver Amethyst & Citrine Rings

    Est.
    $400 - $800
    North American Auction Comp...
    1 Bid
    Current Bid
    $50
  •  10kt Yellow Gold Abalone Cufflink Set
    Estimate
    $300 - $500

    10kt Yellow Gold Abalone Cufflink Set

    Est.
    $300 - $500
    Circle Auction
    0 Bids
    Starting Bid
    $150
  • 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
  • 14K YELLOW GOLD AND SILVER 1.29CT DIAMOND AMETHYST AND PRASIOLITE EARRINGS
    Estimate
    $850 - $1,700

    14K YELLOW GOLD AND SILVER 1.29CT DIAMOND AMETHYST AND ...

    Est.
    $850 - $1,700
    Robinhood Auctions
    0 Bids
    Starting Bid
    $850
  • 18K YELLOW GOLD 0.65CT DIAMOND, SAPPHIRE, AND AMETHYST EARRINGS
    Estimate
    $2,200 - $4,400

    18K YELLOW GOLD 0.65CT DIAMOND, SAPPHIRE, AND AMETHYST ...

    Est.
    $2,200 - $4,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,200
  • Victorian 14k Opal Three Stone Ring With Filigree
    Estimate
    $500 - $700

    Victorian 14k Opal Three Stone Ring With Filigree

    Est.
    $500 - $700
    Circle Auction
    1 Bid
    Current Bid
    $250
  •  14k Ruby Cluster Ring, 2.6 ctw.
    Estimate
    $300 - $500

    14k Ruby Cluster Ring, 2.6 ctw.

    Est.
    $300 - $500
    Circle Auction
    3 Bids
    Current Bid
    $200
  • (2) 14K Yellow Gold Cross Necklaces, One W/ Stones
    Estimate
    $150 - $300

    (2) 14K Yellow Gold Cross Necklaces, One W/ Stones

    Est.
    $150 - $300
    SebastianCharles Auctions
    0 Bids
    Starting Bid
    $100
  •  14k Blue Sapphire Stud Oval Cut Earrings 2.0 ctw
    Estimate
    $300 - $600

    14k Blue Sapphire Stud Oval Cut Earrings 2.0 ctw

    Est.
    $300 - $600
    Circle Auction
    3 Bids
    Current Bid
    $225
  •  14k Tanzanite Drop Earrings
    Estimate
    $150 - $300

    14k Tanzanite Drop Earrings

    Est.
    $150 - $300
    Circle Auction
    2 Bids
    Current Bid
    $100
  •  10k Victorian Pearl Cluster Ring
    Estimate
    $200 - $400

    10k Victorian Pearl Cluster Ring

    Est.
    $200 - $400
    Circle Auction
    1 Bid
    Current Bid
    $100
  • Gildardo Juarez Onyx Sterling Sunburst Cuff
    Estimate
    $1,500 - $2,500

    Gildardo Juarez Onyx Sterling Sunburst Cuff

    Est.
    $1,500 - $2,500
    Circle Auction
    0 Bids
    Starting Bid
    $750
  •  14k Antique Domed Ring W/ Blue Sapphire
    Estimate
    $300 - $500

    14k Antique Domed Ring W/ Blue Sapphire

    Est.
    $300 - $500
    Circle Auction
    3 Bids
    Current Bid
    $225
  • Antique 10k Cameo Brooch / Pendant w/ Mottled Brown + Cream Coloring
    Estimate
    $200 - $300

    Antique 10k Cameo Brooch / Pendant w/ Mottled Brown + C...

    Est.
    $200 - $300
    Circle Auction
    1 Bid
    Current Bid
    $100
  • 18K YELLOW GOLD 0.40CT DIAMOND AND JADE PENDANT
    Estimate
    $950 - $1,900

    18K YELLOW GOLD 0.40CT DIAMOND AND JADE PENDANT

    Est.
    $950 - $1,900
    Robinhood Auctions
    0 Bids
    Starting Bid
    $950
  • 18K YELLOW GOLD ONYX CAMEO BROOCH
    Estimate
    $1,000 - $2,000

    18K YELLOW GOLD ONYX CAMEO BROOCH

    Est.
    $1,000 - $2,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,000
  • CARTIER LANIERES 18K YELLOW GOLD DIAMOND AND SAPPHIRE RING
    Estimate
    $3,300 - $6,600

    CARTIER LANIERES 18K YELLOW GOLD DIAMOND AND SAPPHIRE R...

    Est.
    $3,300 - $6,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • 18K YELLOW GOLD PEARL BROOCH
    Estimate
    $1,400 - $2,800

    18K YELLOW GOLD PEARL BROOCH

    Est.
    $1,400 - $2,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  •  14k Amethyst Open Link Bracelet
    Estimate
    $400 - $600

    14k Amethyst Open Link Bracelet

    Est.
    $400 - $600
    Circle Auction
    2 Bids
    Current Bid
    $375
  • 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
  • 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
  • 14K YELLOW GOLD 0.25CT DIAMOND AND SAPPHIRE HOOP EARRINGS
    Estimate
    $700 - $1,400

    14K YELLOW GOLD 0.25CT DIAMOND AND SAPPHIRE HOOP EARRIN...

    Est.
    $700 - $1,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $700
  • 14K ROSE GOLD RING
    Estimate
    $1,200 - $2,400

    14K ROSE GOLD RING

    Est.
    $1,200 - $2,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,200
  • Navajo Tommy Singer Multistone Bead Necklace
    Estimate
    $475 - $975

    Navajo Tommy Singer Multistone Bead Necklace

    Est.
    $475 - $975
    North American Auction Comp...
    0 Bids
    Starting Bid
    $250
  • PLATINUM 0.68CT DIAMOND AND PEARL EARRINGS
    Estimate
    $1,100 - $2,200

    PLATINUM 0.68CT DIAMOND AND PEARL EARRINGS

    Est.
    $1,100 - $2,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,100
  • 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
  • PASQUALE BRUNI 18K ROSE GOLD 1.85CT DIAMOND AND MOTHER OF PEARL CLIP-ON EARRINGS
    Estimate
    $3,600 - $7,200

    PASQUALE BRUNI 18K ROSE GOLD 1.85CT DIAMOND AND MOTHER ...

    Est.
    $3,600 - $7,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,600
  • IPPOLITA 18K YELLOW GOLD CITRINE AND TOURMALINE NECKLACE
    Estimate
    $2,800 - $5,600

    IPPOLITA 18K YELLOW GOLD CITRINE AND TOURMALINE NECKLAC...

    Est.
    $2,800 - $5,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,800
  • 14K YELLOW GOLD 0.09CT DIAMOND AND RUBY RING
    Estimate
    $320 - $640

    14K YELLOW GOLD 0.09CT DIAMOND AND RUBY RING

    Est.
    $320 - $640
    Robinhood Auctions
    0 Bids
    Starting Bid
    $320
  • TAMARA COMOLLI 18K YELLOW GOLD DANGLE EARRINGS
    Estimate
    $2,200 - $4,400

    TAMARA COMOLLI 18K YELLOW GOLD DANGLE EARRINGS

    Est.
    $2,200 - $4,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,200
  • PLATINUM 1.18CT DIAMOND AND EMERALD NECKLACE
    Estimate
    $4,000 - $8,000

    PLATINUM 1.18CT DIAMOND AND EMERALD NECKLACE

    Est.
    $4,000 - $8,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,000
  • 14K YELLOW GOLD 0.09CT DIAMOND AND EMERALD RING
    Estimate
    $320 - $640

    14K YELLOW GOLD 0.09CT DIAMOND AND EMERALD RING

    Est.
    $320 - $640
    Robinhood Auctions
    0 Bids
    Starting Bid
    $320
  • 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
  • TIFFANY & CO. 18K YELLOW GOLD DIAMOND AND 1.94CT RUBY ETERNITY BAND RING
    Estimate
    $3,000 - $6,000

    TIFFANY & CO. 18K YELLOW GOLD DIAMOND AND 1.94CT RUBY E...

    Est.
    $3,000 - $6,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,000
  • 14K WHITE GOLD 0.15CT DIAMOND AND TOPAZ RING
    Estimate
    $340 - $680

    14K WHITE GOLD 0.15CT DIAMOND AND TOPAZ RING

    Est.
    $340 - $680
    Robinhood Auctions
    0 Bids
    Starting Bid
    $340
  • 14K YELLOW GOLD 0.11CT DIAMOND AND GARNET PENDANT NECKLACE
    Estimate
    $300 - $600

    14K YELLOW GOLD 0.11CT DIAMOND AND GARNET PENDANT NECKL...

    Est.
    $300 - $600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $300
  • PLATINUM 1.01CT DIAMOND AND JADE RING
    Estimate
    $1,400 - $2,800

    PLATINUM 1.01CT DIAMOND AND JADE RING

    Est.
    $1,400 - $2,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  • 14K YELLOW GOLD 0.08CT DIAMOND AND RUBY NECKLACE
    Estimate
    $260 - $520

    14K YELLOW GOLD 0.08CT DIAMOND AND RUBY NECKLACE

    Est.
    $260 - $520
    Robinhood Auctions
    0 Bids
    Starting Bid
    $260
  • 18K YELLOW GOLD COLORED STONES NECKLACE
    Estimate
    $1,900 - $3,800

    18K YELLOW GOLD COLORED STONES NECKLACE

    Est.
    $1,900 - $3,800
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,900
  • PASQUALE BRUNI 18K WHITE GOLD 0.45CT DIAMOND AND AMETHYST RING
    Estimate
    $1,800 - $3,600

    PASQUALE BRUNI 18K WHITE GOLD 0.45CT DIAMOND AND AMETHY...

    Est.
    $1,800 - $3,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,800
  • 18K YELLOW GOLD 3.50CT DIAMOND, EMERALD, AND ONYX EARRINGS
    Estimate
    $4,500 - $9,000

    18K YELLOW GOLD 3.50CT DIAMOND, EMERALD, AND ONYX EARRI...

    Est.
    $4,500 - $9,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,500
  • ROBERTO COIN 18K WHITE GOLD 0.85CT DIAMOND HUGGIE HOOP EARRINGS
    Estimate
    $1,700 - $3,400

    ROBERTO COIN 18K WHITE GOLD 0.85CT DIAMOND HUGGIE HOOP ...

    Est.
    $1,700 - $3,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,700

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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