747 Results
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  • 18k Gold Jade Diamond Ring
    Estimate
    $3,000 - $4,000

    18k Gold Jade Diamond Ring

    Est.
    $3,000 - $4,000
    0 Bids
    Starting Bid
    $1,800
  • H. Stern 18k Gold Multi Gemstone Necklace
    Estimate
    $4,000 - $6,000

    H. Stern 18k Gold Multi Gemstone Necklace

    Est.
    $4,000 - $6,000
    0 Bids
    Starting Bid
    $2,000
  • Antique 14k Gold Yellow Gemstone Diamond Ring
    Estimate
    $2,000 - $4,000

    Antique 14k Gold Yellow Gemstone Diamond Ring

    Est.
    $2,000 - $4,000
    0 Bids
    Starting Bid
    $1,000
  • Antique Victorian Gold Seed Pearl Gemstone Diamond Deer Pendant Brooch Lot of 2
    Estimate
    $2,000 - $3,000

    Antique Victorian Gold Seed Pearl Gemstone Diamond Deer Pendant Brooch Lot of 2

    Est.
    $2,000 - $3,000
    0 Bids
    Starting Bid
    $1,200
  • 14k Gold Multi Gemstone Bee Insect Brooch Pin Lot of 3
    Estimate
    $1,500 - $2,000

    14k Gold Multi Gemstone Bee Insect Brooch Pin Lot of 3

    Est.
    $1,500 - $2,000
    0 Bids
    Starting Bid
    $1,000
  • Vintage 18k Gold Silver Enamel Diamond Bouquet Brooch
    Estimate
    $3,500 - $4,500

    Vintage 18k Gold Silver Enamel Diamond Bouquet Brooch

    Est.
    $3,500 - $4,500
    0 Bids
    Starting Bid
    $2,200
  • Krauss Modernist 1970s Gold Amethyst Diamond Pendant Brooch Necklace
    Estimate
    $15,000 - $20,000

    Krauss Modernist 1970s Gold Amethyst Diamond Pendant Brooch Necklace

    Est.
    $15,000 - $20,000
    0 Bids
    Starting Bid
    $10,000
  • Antique Victorian 14k Gold Crystal Locket Pendant
    Estimate
    $600 - $900

    Antique Victorian 14k Gold Crystal Locket Pendant

    Est.
    $600 - $900
    0 Bids
    Starting Bid
    $250
  • 18k Gold Carved Morganite Aquamarine Necklace
    Estimate
    $1,500 - $2,000

    18k Gold Carved Morganite Aquamarine Necklace

    Est.
    $1,500 - $2,000
    0 Bids
    Starting Bid
    $1,000
  • Antique Victorian 14k Gold Jasper Agate Carnelian Watch Fob Chain
    Estimate
    $3,500 - $5,000

    Antique Victorian 14k Gold Jasper Agate Carnelian Watch Fob Chain

    Est.
    $3,500 - $5,000
    0 Bids
    Starting Bid
    $2,500
  • Lagos Caviar 18k Gold Silver Citrine Necklace
    Estimate
    $750 - $1,000

    Lagos Caviar 18k Gold Silver Citrine Necklace

    Est.
    $750 - $1,000
    0 Bids
    Starting Bid
    $500
  • Platinum Jade Diamond Long Drop Pendant
    Estimate
    $2,500 - $4,000

    Platinum Jade Diamond Long Drop Pendant

    Est.
    $2,500 - $4,000
    0 Bids
    Starting Bid
    $1,700
  • Native American Sterling Cuff Bracelet Set of 2
    Estimate
    $150 - $200

    Native American Sterling Cuff Bracelet Set of 2

    Est.
    $150 - $200
    0 Bids
    Starting Bid
    $100
  • Antique English 9k Gold Carnelian Intaglio Brooch Pin
    Estimate
    $1,500 - $1,800

    Antique English 9k Gold Carnelian Intaglio Brooch Pin

    Est.
    $1,500 - $1,800
    0 Bids
    Starting Bid
    $950
  • Mid Century Platinum Diamond Brooch Pin
    Estimate
    $3,500 - $4,500

    Mid Century Platinum Diamond Brooch Pin

    Est.
    $3,500 - $4,500
    0 Bids
    Starting Bid
    $2,300
  • French 18k Gold Ruby Sapphire Enamel Brooch Pin
    Estimate
    $2,200 - $3,000

    French 18k Gold Ruby Sapphire Enamel Brooch Pin

    Est.
    $2,200 - $3,000
    0 Bids
    Starting Bid
    $1,600
  • 14k Gold Lapis Bar Cufflinks
    Estimate
    $800 - $1,200

    14k Gold Lapis Bar Cufflinks

    Est.
    $800 - $1,200
    0 Bids
    Starting Bid
    $400
  • Mid Century Platinum Diamond Engagement Ring
    Estimate
    $1,000 - $2,000

    Mid Century Platinum Diamond Engagement Ring

    Est.
    $1,000 - $2,000
    0 Bids
    Starting Bid
    $500
  • Platinum Diamond Engagement Ring Setting Mounting
    Estimate
    $600 - $800

    Platinum Diamond Engagement Ring Setting Mounting

    Est.
    $600 - $800
    0 Bids
    Starting Bid
    $400
  • David Yurman Waves Sterling Silver Black Diamond Pendant
    Estimate
    $300 - $600

    David Yurman Waves Sterling Silver Black Diamond Pendant

    Est.
    $300 - $600
    0 Bids
    Starting Bid
    $150
  • 14k Gold Diamond Five Stone Ring
    Estimate
    $600 - $900

    14k Gold Diamond Five Stone Ring

    Est.
    $600 - $900
    0 Bids
    Starting Bid
    $300
  • Tiffany Mid Century 14k Gold Terrier Medallion Pendant
    Estimate
    $8,000 - $12,000

    Tiffany Mid Century 14k Gold Terrier Medallion Pendant

    Est.
    $8,000 - $12,000
    0 Bids
    Starting Bid
    $4,000
  • 24k Gold Onyx Drop Earrings
    Estimate
    $500 - $700

    24k Gold Onyx Drop Earrings

    Est.
    $500 - $700
    0 Bids
    Starting Bid
    $250
  • Bvlgari Bulgari 18k Gold Onyx Cufflinks
    Estimate
    $3,000 - $4,000

    Bvlgari Bulgari 18k Gold Onyx Cufflinks

    Est.
    $3,000 - $4,000
    0 Bids
    Starting Bid
    $2,100
  • Platinum Diamond Eternity Wedding Band Ring
    Estimate
    $600 - $900

    Platinum Diamond Eternity Wedding Band Ring

    Est.
    $600 - $900
    0 Bids
    Starting Bid
    $350
  • Christofle Idole Sterling Silver Cufflinks
    Estimate
    $250 - $500

    Christofle Idole Sterling Silver Cufflinks

    Est.
    $250 - $500
    0 Bids
    Starting Bid
    $100
  • Magick Fusager Demski 14k Gold DIamond Cloisonne Enamel Earrings
    Estimate
    $1,400 - $2,100

    Magick Fusager Demski 14k Gold DIamond Cloisonne Enamel Earrings

    Est.
    $1,400 - $2,100
    0 Bids
    Starting Bid
    $750
  • French 18k Gold Ruby Sapphire Turquoise Enamel Brooch Pin
    Estimate
    $3,000 - $4,000

    French 18k Gold Ruby Sapphire Turquoise Enamel Brooch Pin

    Est.
    $3,000 - $4,000
    0 Bids
    Starting Bid
    $1,800
  • Tiffany & Co Sterling Silver Pearl Necklace
    Estimate
    $200 - $300

    Tiffany & Co Sterling Silver Pearl Necklace

    Est.
    $200 - $300
    0 Bids
    Starting Bid
    $100
  • Mid Century Platinum Diamond Engagement Ring Setting Guard Lot of 4
    Estimate
    $1,200 - $1,800

    Mid Century Platinum Diamond Engagement Ring Setting Guard Lot of 4

    Est.
    $1,200 - $1,800
    0 Bids
    Starting Bid
    $900
  • Mid Century Platinum Diamond Ruby Pearl Bow Drop Earrings
    Estimate
    $2,500 - $3,000

    Mid Century Platinum Diamond Ruby Pearl Bow Drop Earrings

    Est.
    $2,500 - $3,000
    0 Bids
    Starting Bid
    $1,600
  • Tiffany & Co Sterling Silver Nut & Bolt Cufflinks
    Estimate
    $250 - $500

    Tiffany & Co Sterling Silver Nut & Bolt Cufflinks

    Est.
    $250 - $500
    0 Bids
    Starting Bid
    $100
  • 14k Gold Sapphire Diamond Necklace
    Estimate
    $2,000 - $3,000

    14k Gold Sapphire Diamond Necklace

    Est.
    $2,000 - $3,000
    0 Bids
    Starting Bid
    $1,000
  • Michael Good 18k Gold Brooch Pin
    Estimate
    $800 - $1,200

    Michael Good 18k Gold Brooch Pin

    Est.
    $800 - $1,200
    0 Bids
    Starting Bid
    $550
  • Art Deco Filigree Platinum Carved Amethyst Diamond Bar Brooch Pin
    Estimate
    $2,000 - $3,000

    Art Deco Filigree Platinum Carved Amethyst Diamond Bar Brooch Pin

    Est.
    $2,000 - $3,000
    0 Bids
    Starting Bid
    $1,500
  • 18k Gold Sapphire Emerald Panther Brooch Pin
    Estimate
    $6,500 - $9,000

    18k Gold Sapphire Emerald Panther Brooch Pin

    Est.
    $6,500 - $9,000
    0 Bids
    Starting Bid
    $4,500
  • Mid Century Platinum Diamond Band Ring
    Estimate
    $1,200 - $1,800

    Mid Century Platinum Diamond Band Ring

    Est.
    $1,200 - $1,800
    0 Bids
    Starting Bid
    $600
  • Mid Century Platinum Diamond Band Ring
    Estimate
    $1,000 - $1,500

    Mid Century Platinum Diamond Band Ring

    Est.
    $1,000 - $1,500
    0 Bids
    Starting Bid
    $500
  • Antique Etruscan 18k Gold Miniature Portrait Locket Pendant
    Estimate
    $4,500 - $6,000

    Antique Etruscan 18k Gold Miniature Portrait Locket Pendant

    Est.
    $4,500 - $6,000
    0 Bids
    Starting Bid
    $3,000
  • 18k Gold Carved Jade Diamond Onyx Ruby Earrings
    Estimate
    $2,500 - $3,500

    18k Gold Carved Jade Diamond Onyx Ruby Earrings

    Est.
    $2,500 - $3,500
    0 Bids
    Starting Bid
    $1,800
  • Art Deco Platinum Diamond Engagement Ring
    Estimate
    $1,800 - $2,200

    Art Deco Platinum Diamond Engagement Ring

    Est.
    $1,800 - $2,200
    0 Bids
    Starting Bid
    $800
  • Magick Fusager Demski 14k Gold Cloisonne Enamel Onyx Earrings
    Estimate
    $1,500 - $2,200

    Magick Fusager Demski 14k Gold Cloisonne Enamel Onyx Earrings

    Est.
    $1,500 - $2,200
    0 Bids
    Starting Bid
    $950
  • Tiffany & Co 18k Gold Multi Chain Heart Toggle Necklace
    Estimate
    $6,000 - $9,000

    Tiffany & Co 18k Gold Multi Chain Heart Toggle Necklace

    Est.
    $6,000 - $9,000
    0 Bids
    Starting Bid
    $4,700
  • Mid Century Platinum Diamond Band Ring
    Estimate
    $800 - $1,200

    Mid Century Platinum Diamond Band Ring

    Est.
    $800 - $1,200
    0 Bids
    Starting Bid
    $400
  • Roberto Coin Pink Sapphire Gold Cross Pendant
    Estimate
    $1,200 - $1,800

    Roberto Coin Pink Sapphire Gold Cross Pendant

    Est.
    $1,200 - $1,800
    0 Bids
    Starting Bid
    $800
  • Tiffany & Co 14k Gold Mabe Pearl Button Earrings
    Estimate
    $1,500 - $2,000

    Tiffany & Co 14k Gold Mabe Pearl Button Earrings

    Est.
    $1,500 - $2,000
    0 Bids
    Starting Bid
    $900
  • Antique Victorian 14k Gold Diamond Enamel Bracelet
    Estimate
    $2,000 - $3,000

    Antique Victorian 14k Gold Diamond Enamel Bracelet

    Est.
    $2,000 - $3,000
    0 Bids
    Starting Bid
    $1,300
  • 14k Gold Opal Diamond Drop Earrings
    Estimate
    $700 - $1,000

    14k Gold Opal Diamond Drop Earrings

    Est.
    $700 - $1,000
    0 Bids
    Starting Bid
    $450

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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