739 Results
Sort by
  • ASSORTED LOOSE / UNMOUNTED CUT DIAMOND AND OTHER GEMSTONES AND TINY GLASS EYES, LOT OF 20 PIECES
    Estimate
    $30 - $50

    ASSORTED LOOSE / UNMOUNTED CUT DIAMOND AND OTHER GEMSTONES AND TINY GLASS EYES, LOT OF 20 PIECES

    Est.
    $30 - $50
    Jeffrey S. Evans & Assoc., ...
    1 Bid
    Current Bid
    $10
  • ANTIQUE / VINTAGE ART DECO 14K WHITE GOLD, DIAMOND, AND GEMSTONE BRACELET
    Estimate
    $400 - $600

    ANTIQUE / VINTAGE ART DECO 14K WHITE GOLD, DIAMOND, AND GEMSTONE BRACELET

    Est.
    $400 - $600
    Jeffrey S. Evans & Assoc., ...
    2 Bids
    Current Bid
    $250
  • ANTIQUE / VINTAGE 10K AND 14K GOLD AND GEMSTONE JEWELRY, LOT OF TWO
    Estimate
    $300 - $500

    ANTIQUE / VINTAGE 10K AND 14K GOLD AND GEMSTONE JEWELRY, LOT OF TWO

    Est.
    $300 - $500
    Jeffrey S. Evans & Assoc., ...
    2 Bids
    Current Bid
    $225
  • ANTIQUE / VINTAGE ART DECO PLATINUM, 18K GOLD, DIAMOND, AND GEMSTONE LADY'S RINGS, LOT OF TWO
    Estimate
    $500 - $800

    ANTIQUE / VINTAGE ART DECO PLATINUM, 18K GOLD, DIAMOND, AND GEMSTONE LADY'S RINGS, LOT OF TWO

    Est.
    $500 - $800
    Jeffrey S. Evans & Assoc., ...
    1 Bid
    Current Bid
    $250
  • Vintage 14K Gold Jade Coral Strawberry Jewelry Brooch
    Estimate
    $100 - $10,000

    Vintage 14K Gold Jade Coral Strawberry Jewelry Brooch

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • Vintage 10K Gold Fox Hunt-Themed Stick Pins Bar Brooches
    Estimate
    $100 - $10,000

    Vintage 10K Gold Fox Hunt-Themed Stick Pins Bar Brooches

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • Vintage 14K-18K Gold Jewelry Rings Brooch And Brass Buffalo Ring
    Estimate
    $100 - $10,000

    Vintage 14K-18K Gold Jewelry Rings Brooch And Brass Buffalo Ring

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • Vintage 10K-14K Gold Jewelry Estate Collection
    Estimate
    $100 - $10,000

    Vintage 10K-14K Gold Jewelry Estate Collection

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • Vintage 18K Gold Austrian Maker E. Paltscho Jewelry Set Amethyst Jade Diamond Violet
    Estimate
    $100 - $10,000

    Vintage 18K Gold Austrian Maker E. Paltscho Jewelry Set Amethyst Jade Diamond Violet

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • Vintage 10K-14K-18K Gold Jewelry Charm Estate Collection
    Estimate
    $100 - $10,000

    Vintage 10K-14K-18K Gold Jewelry Charm Estate Collection

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • Very Fine 14K White Gold Designer Diamond Fox Head Jewelry Pendant
    Estimate
    $100 - $10,000

    Very Fine 14K White Gold Designer Diamond Fox Head Jewelry Pendant

    Est.
    $100 - $10,000
    Mebane Antique Auction Gall...
    Starting Bid
    $50
  • ASSORTED LOOSE / UNMOUNTED GEMSTONES, CABOCHONS, AND RELATED MATERIALS, LOT OF 22
    Estimate
    $30 - $50

    ASSORTED LOOSE / UNMOUNTED GEMSTONES, CABOCHONS, AND RELATED MATERIALS, LOT OF 22

    Est.
    $30 - $50
    Jeffrey S. Evans & Assoc., ...
    0 Bids
    Starting Bid
    $10
  • Assorted Loose Gemstones including Opal, Citrine, and Emerald
    Estimate
    $100 - $250

    Assorted Loose Gemstones including Opal, Citrine, and Emerald

    Est.
    $100 - $250
    Annex Auctions
    5 Bids
    Current Bid
    $90
  • Certified 30 Count Mixed Variety Semi Precious Gemstone Lot
    Estimate
    $1,500 - $2,500

    Certified 30 Count Mixed Variety Semi Precious Gemstone Lot

    Est.
    $1,500 - $2,500
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Approx. 100.00cttw Mixed Faceted Gemstones in Tray
    Estimate
    $100 - $250

    Approx. 100.00cttw Mixed Faceted Gemstones in Tray

    Est.
    $100 - $250
    Annex Auctions
    3 Bids
    Current Bid
    $80
  • Huge 5 Ct Sparkling  VVs1 Hot Cherry Red Simulated Diamond Solitaire
    Estimate
    $400 - $600

    Huge 5 Ct Sparkling VVs1 Hot Cherry Red Simulated Diamond Solitaire

    Est.
    $400 - $600
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • 14K Yellow Gold, Purple Gemstone & Diamond Pendant
    Estimate
    $300 - $500

    14K Yellow Gold, Purple Gemstone & Diamond Pendant

    Est.
    $300 - $500
    East Wing Estate Sales & Au...
    0 Bids
    Starting Bid
    $150
  • Dazzling Huge 6.25 Ct White E-F VVs1 Fire Moissanite Solitaire
    Estimate
    $800 - $1,000

    Dazzling Huge 6.25 Ct White E-F VVs1 Fire Moissanite Solitaire

    Est.
    $800 - $1,000
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Sparkling Huge 7.5 Ct White E-F VVs1 Fire Moissanite Solitaire
    Estimate
    $800 - $1,000

    Sparkling Huge 7.5 Ct White E-F VVs1 Fire Moissanite Solitaire

    Est.
    $800 - $1,000
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Dazzling 5 Ct VVs1 Golden Yellow Fire Moissanite Solitaire
    Estimate
    $500 - $1,000

    Dazzling 5 Ct VVs1 Golden Yellow Fire Moissanite Solitaire

    Est.
    $500 - $1,000
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Antique Low-Karat White Gold, Opal, & Diamond Fringe Necklace
    Estimate
    $500 - $1,000

    Antique Low-Karat White Gold, Opal, & Diamond Fringe Necklace

    Est.
    $500 - $1,000
    East Wing Estate Sales & Au...
    0 Bids
    Starting Bid
    $250
  • Pair of 18K Yellow Gold, Opal, & Diamond Starburst Clip-On Earrings
    Estimate
    $300 - $600

    Pair of 18K Yellow Gold, Opal, & Diamond Starburst Clip-On Earrings

    Est.
    $300 - $600
    East Wing Estate Sales & Au...
    0 Bids
    Starting Bid
    $150
  • 5 Piece Gold Plate Fashion Jewelry Lot
    Estimate
    $200 - $300

    5 Piece Gold Plate Fashion Jewelry Lot

    Est.
    $200 - $300
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • 5 Ct VVS1 Princess Cut Lab Simulated Padpaparacha Sapphire
    Estimate
    $400 - $600

    5 Ct VVS1 Princess Cut Lab Simulated Padpaparacha Sapphire

    Est.
    $400 - $600
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Huge 5 Ct VVs1 Russian Color Change Lab Simulated Alexandrite Solitaire
    Estimate
    $450 - $650

    Huge 5 Ct VVs1 Russian Color Change Lab Simulated Alexandrite Solitaire

    Est.
    $450 - $650
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Three Pieces of 14K Yellow Gold - Stick Pins & Earring
    Estimate
    $300 - $600

    Three Pieces of 14K Yellow Gold - Stick Pins & Earring

    Est.
    $300 - $600
    East Wing Estate Sales & Au...
    0 Bids
    Starting Bid
    $150
  • Group of 5 Gold and Gemstone Rings
    Estimate
    $700 - $1,000

    Group of 5 Gold and Gemstone Rings

    Est.
    $700 - $1,000
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $425
  • 14K Gold and Gemstone Sliding Bracelet
    Estimate
    $2,000 - $4,000

    14K Gold and Gemstone Sliding Bracelet

    Est.
    $2,000 - $4,000
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $1,200
  • Bvlgari Allegra Multi Gemstone Diamond 18K Yellow Gold Bracelet
    Estimate
    $7,000 - $10,000

    Bvlgari Allegra Multi Gemstone Diamond 18K Yellow Gold Bracelet

    Est.
    $7,000 - $10,000
    Victorins Auctions
    0 Bids
    Starting Bid
    $600
  • SEIDENGANG 18K YELLOW GOLD MULTI-GEMSTONE BRACELET
    Estimate
    $7,000 - $17,500

    SEIDENGANG 18K YELLOW GOLD MULTI-GEMSTONE BRACELET

    Est.
    $7,000 - $17,500
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,000
  • CARTIER 18K WHITE GOLD MUTI-GEMSTONE NECKLACE
    Estimate
    $4,200 - $10,500

    CARTIER 18K WHITE GOLD MUTI-GEMSTONE NECKLACE

    Est.
    $4,200 - $10,500
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • Judith Ripka Sterling Pearl & Gemstone Jewelry 6 pcs
    Estimate
    $200 - $400

    Judith Ripka Sterling Pearl & Gemstone Jewelry 6 pcs

    Est.
    $200 - $400
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $125
  • Two 14K Orange Gemstone Rings, Size 7 & 4.5
    Estimate
    $400 - $600

    Two 14K Orange Gemstone Rings, Size 7 & 4.5

    Est.
    $400 - $600
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $250
  • Judith Ripka Strling, Pearl & Gemstone Jewelry 8 pcs
    Estimate
    $200 - $400

    Judith Ripka Strling, Pearl & Gemstone Jewelry 8 pcs

    Est.
    $200 - $400
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $125
  • 18K ROSE GOLD BLUE-GEMSTONE SCULPTURAL COCKTAIL RING
    Estimate
    $1,600 - $4,000

    18K ROSE GOLD BLUE-GEMSTONE SCULPTURAL COCKTAIL RING

    Est.
    $1,600 - $4,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,600
  • Mauboussin 18K Yellow Gold Diamond and Yellow Gemstone Cushion Drop Earrings
    Estimate
    $2,000 - $3,500

    Mauboussin 18K Yellow Gold Diamond and Yellow Gemstone Cushion Drop Earrings

    Est.
    $2,000 - $3,500
    Victorins Auctions
    0 Bids
    Starting Bid
    $500
  • Three Gemstone & Diamond Gold Rings, 18.6 Grams
    Estimate
    $1,000 - $2,500

    Three Gemstone & Diamond Gold Rings, 18.6 Grams

    Est.
    $1,000 - $2,500
    Witherell Auctions
    1 Bid
    Current Bid
    $500
  • Judith Ripka Sterling & Gemstone Jewelry, 7 pcs.
    Estimate
    $300 - $500

    Judith Ripka Sterling & Gemstone Jewelry, 7 pcs.

    Est.
    $300 - $500
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $175
  • 18K Gold, Pearl, Diamond and Gemstone Butterfly Pin
    Estimate
    $400 - $600

    18K Gold, Pearl, Diamond and Gemstone Butterfly Pin

    Est.
    $400 - $600
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $250
  • Judith Ripka Strling, Pearl & Gemstone Jewelry 6 pcs
    Estimate
    $300 - $500

    Judith Ripka Strling, Pearl & Gemstone Jewelry 6 pcs

    Est.
    $300 - $500
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $175
  • IO SI 18K WHITE GOLD 0.02CT DIAMOND AND BLUE GEMSTONE EARRINGS
    Estimate
    $1,200 - $3,000

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

    Est.
    $1,200 - $3,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,200
  • ANTONINI 18K YELLOW GOLD GEMSTONE PIN
    Estimate
    $1,300 - $3,250

    ANTONINI 18K YELLOW GOLD GEMSTONE PIN

    Est.
    $1,300 - $3,250
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,300
  • 18K WHITE GOLD FLORAL GEMSTONE PAVE DOME RING
    Estimate
    $3,300 - $8,250

    18K WHITE GOLD FLORAL GEMSTONE PAVE DOME RING

    Est.
    $3,300 - $8,250
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,300
  • Plated Rhodium 12.04ctw Multi Color Gemstone Bracelet
    Estimate
    $500 - $700

    Plated Rhodium 12.04ctw Multi Color Gemstone Bracelet

    Est.
    $500 - $700
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • Plated Rhodium 12.04ctw Multi Color Gemstone Bracelet
    Estimate
    $500 - $700

    Plated Rhodium 12.04ctw Multi Color Gemstone Bracelet

    Est.
    $500 - $700
    1 Great Deal Auctions
    0 Bids
    Starting Bid
    $1
  • 14K Yellow Gold Diamond and Gemstone Bracelet, 62.0 Grams
    Estimate
    $2,500 - $5,000

    14K Yellow Gold Diamond and Gemstone Bracelet, 62.0 Grams

    Est.
    $2,500 - $5,000
    Witherell Auctions
    1 Bid
    Current Bid
    $1,200
  • 18K Yellow Gold Diamond and Gemstone Bracelet, 49.8 Grams
    Estimate
    $2,500 - $5,000

    18K Yellow Gold Diamond and Gemstone Bracelet, 49.8 Grams

    Est.
    $2,500 - $5,000
    Witherell Auctions
    1 Bid
    Current Bid
    $1,200
  • 14K Gold, Ruby, & Diamond Owl Cocktail Ring Size 8
    Estimate
    $1,200 - $1,600

    14K Gold, Ruby, & Diamond Owl Cocktail Ring Size 8

    Est.
    $1,200 - $1,600
    East Wing Estate Sales & Au...
    0 Bids
    Starting Bid
    $600

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.

 

Are you looking for an auction near me? Visit Bidsquare's Auction Near Me page to discover upcoming auctions near you.