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  • ASSORTED LOOSE / UNMOUNTED CUT AND RAW DIAMONDS AND GEMSTONES, LOT OF FOUR
    Estimate
    $50 - $100

    ASSORTED LOOSE / UNMOUNTED CUT AND RAW DIAMONDS AND GEMSTONES, LOT OF FOUR

    Est.
    $50 - $100
    Jeffrey S. Evans & Assoc., ...
    0 Bids
    Starting Bid
    $20
  • ASSORTED LOOSE / UNMOUNTED CUT AND CABOCHON GEMSTONES, MINERALS, AND ROCKS, UNCOUNTED LOT
    Estimate
    $50 - $100

    ASSORTED LOOSE / UNMOUNTED CUT AND CABOCHON GEMSTONES, MINERALS, AND ROCKS, UNCOUNTED LOT

    Est.
    $50 - $100
    Jeffrey S. Evans & Assoc., ...
    1 Bid
    Current Bid
    $20
  • ASSORTED LOOSE / UNMOUNTED CUT AND RAW EMERALD, AND POSSIBLY OTHER, GEMSTONES, LOT OF NINE
    Estimate
    $50 - $100

    ASSORTED LOOSE / UNMOUNTED CUT AND RAW EMERALD, AND POSSIBLY OTHER, GEMSTONES, LOT OF NINE

    Est.
    $50 - $100
    Jeffrey S. Evans & Assoc., ...
    1 Bid
    Current Bid
    $20
  • ASSORTED LOOSE / UNMOUNTED ROCKS, MINERALS / CRYSTALS, AND OTHER MATERIALS, UNCOUNTED LOT
    Estimate
    $50 - $100

    ASSORTED LOOSE / UNMOUNTED ROCKS, MINERALS / CRYSTALS, AND OTHER MATERIALS, UNCOUNTED LOT

    Est.
    $50 - $100
    Jeffrey S. Evans & Assoc., ...
    2 Bids
    Current Bid
    $30
  • Dazzling 3 Ct VVs1 Sapphire Blue Fire Moissanite Solitaire
    Estimate
    $500 - $1,000

    Dazzling 3 Ct VVs1 Sapphire Blue Fire Moissanite Solitaire

    Est.
    $500 - $1,000
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • 47-Carat Emerald Cut Kunzite Loose Gemstone
    Estimate
    $2,000 - $3,000

    47-Carat Emerald Cut Kunzite Loose Gemstone

    Est.
    $2,000 - $3,000
    Newel Auctions
    Starting Bid
    $1,000
  • Sterling Silver Multi-Gemstone Earrings
    Estimate
    $100 - $300

    Sterling Silver Multi-Gemstone Earrings

    Est.
    $100 - $300
    Vogt Auction
    1 Bid
    Current Bid
    $50
  • Natural Black Diamond Grape Briolettes Ear Pendants
    Estimate
    $4,000 - $6,000

    Natural Black Diamond Grape Briolettes Ear Pendants

    Est.
    $4,000 - $6,000
    Newel Auctions
    Starting Bid
    $3,200
  • Vintage Amethyst and Opal Ring
    Estimate
    $650 - $1,000

    Vintage Amethyst and Opal Ring

    Est.
    $650 - $1,000
    Newel Auctions
    Starting Bid
    $450
  • 18K Yellow Gold Hand Carved Morganite And Aquamarine Drop Necklace
    Estimate
    $2,000 - $3,000

    18K Yellow Gold Hand Carved Morganite And Aquamarine Drop Necklace

    Est.
    $2,000 - $3,000
    Newel Auctions
    Starting Bid
    $1,200
  • Vintage Four- Leaf Enamel Clover Brooch And Pendant
    Estimate
    $2,500 - $3,500

    Vintage Four- Leaf Enamel Clover Brooch And Pendant

    Est.
    $2,500 - $3,500
    Newel Auctions
    Starting Bid
    $2,000
  • Natural Multi Color Unheated Sapphire 18K Yellow Gold Chain
    Estimate
    $2,000 - $3,000

    Natural Multi Color Unheated Sapphire 18K Yellow Gold Chain

    Est.
    $2,000 - $3,000
    Newel Auctions
    Starting Bid
    $1,500
  • Diamond Tennis Bracelet
    Estimate
    $14,000 - $18,000

    Diamond Tennis Bracelet

    Est.
    $14,000 - $18,000
    Newel Auctions
    Starting Bid
    $9,000
  • Diamond Necklace
    Estimate
    $1,500 - $2,000

    Diamond Necklace

    Est.
    $1,500 - $2,000
    Newel Auctions
    Starting Bid
    $900
  • Emerald ,Sapphire And Diamond Leaf Pendant
    Estimate
    $1,000 - $1,500

    Emerald ,Sapphire And Diamond Leaf Pendant

    Est.
    $1,000 - $1,500
    Newel Auctions
    Starting Bid
    $600
  • Roberto Coin Appassionata Collection Flexible Woven Mesh Band Ring
    Estimate
    $3,000 - $4,000

    Roberto Coin Appassionata Collection Flexible Woven Mesh Band Ring

    Est.
    $3,000 - $4,000
    Newel Auctions
    Starting Bid
    $2,200
  • 18K Yellow Gold Multi Color Tourmaline And Diamond Ear Studs
    Estimate
    $1,800 - $2,500

    18K Yellow Gold Multi Color Tourmaline And Diamond Ear Studs

    Est.
    $1,800 - $2,500
    Newel Auctions
    Starting Bid
    $1,200
  • Diamond Hanging Flower Earrings
    Estimate
    $4,000 - $6,000

    Diamond Hanging Flower Earrings

    Est.
    $4,000 - $6,000
    Newel Auctions
    Starting Bid
    $2,400
  • Vintage Diamond Link Necklace
    Estimate
    $18,000 - $25,000

    Vintage Diamond Link Necklace

    Est.
    $18,000 - $25,000
    Newel Auctions
    Starting Bid
    $12,000
  • Emerald And Diamond Chain
    Estimate
    $1,500 - $2,000

    Emerald And Diamond Chain

    Est.
    $1,500 - $2,000
    Newel Auctions
    Starting Bid
    $1,000
  • Hidalgo Diamond And Blue Enamel Flower Earrings
    Estimate
    $3,500 - $4,500

    Hidalgo Diamond And Blue Enamel Flower Earrings

    Est.
    $3,500 - $4,500
    Newel Auctions
    Starting Bid
    $2,400
  • Vintage Diamond 18K Yellow Gold Bracelet
    Estimate
    $12,000 - $15,000

    Vintage Diamond 18K Yellow Gold Bracelet

    Est.
    $12,000 - $15,000
    Newel Auctions
    Starting Bid
    $10,000
  • Diamond Stud Earrings
    Estimate
    $5,500 - $7,000

    Diamond Stud Earrings

    Est.
    $5,500 - $7,000
    Newel Auctions
    Starting Bid
    $3,400
  • Vintage Coral, Onyx And Diamond Gold Earrings
    Estimate
    $4,000 - $5,000

    Vintage Coral, Onyx And Diamond Gold Earrings

    Est.
    $4,000 - $5,000
    Newel Auctions
    Starting Bid
    $3,200
  • Diamonds By The Yard Necklace
    Estimate
    $1,000 - $1,500

    Diamonds By The Yard Necklace

    Est.
    $1,000 - $1,500
    Newel Auctions
    Starting Bid
    $600
  • Emerald, Sapphire And Diamond Ear Studs
    Estimate
    $1,200 - $1,800

    Emerald, Sapphire And Diamond Ear Studs

    Est.
    $1,200 - $1,800
    Newel Auctions
    Starting Bid
    $700
  • Lapis Lazuli, Moonstones And Diamond Fan Ear Pendants
    Estimate
    $1,200 - $1,800

    Lapis Lazuli, Moonstones And Diamond Fan Ear Pendants

    Est.
    $1,200 - $1,800
    Newel Auctions
    Starting Bid
    $750
  • Diamond By The Yard Necklace
    Estimate
    $1,000 - $1,500

    Diamond By The Yard Necklace

    Est.
    $1,000 - $1,500
    Newel Auctions
    Starting Bid
    $750
  • Blue Topaz And Diamond Butterfly Necklace
    Estimate
    $800 - $1,200

    Blue Topaz And Diamond Butterfly Necklace

    Est.
    $800 - $1,200
    Newel Auctions
    Starting Bid
    $550
  • 18K Rose Gold Diamond Earrings
    Estimate
    $3,500 - $5,000

    18K Rose Gold Diamond Earrings

    Est.
    $3,500 - $5,000
    Newel Auctions
    Starting Bid
    $2,000
  • Tourmaline And Diamond Ring
    Estimate
    $2,500 - $3,500

    Tourmaline And Diamond Ring

    Est.
    $2,500 - $3,500
    Newel Auctions
    Starting Bid
    $1,500
  • Diamond Gold Bracelet
    Estimate
    $9,000 - $12,000

    Diamond Gold Bracelet

    Est.
    $9,000 - $12,000
    Newel Auctions
    Starting Bid
    $5,400
  • H.Stern Diamond And Gold Metropoli Necklace
    Estimate
    $20,000 - $25,000

    H.Stern Diamond And Gold Metropoli Necklace

    Est.
    $20,000 - $25,000
    Newel Auctions
    Starting Bid
    $14,000
  • H.Stern Diamond `Metropolis' Earrings
    Estimate
    $4,000 - $6,000

    H.Stern Diamond `Metropolis' Earrings

    Est.
    $4,000 - $6,000
    Newel Auctions
    Starting Bid
    $2,400
  • Hexagon Cut Unheated Ruby And Diamond Crossover Ring,GIA
    Estimate
    $2,000 - $3,000

    Hexagon Cut Unheated Ruby And Diamond Crossover Ring,GIA

    Est.
    $2,000 - $3,000
    Newel Auctions
    Starting Bid
    $1,000
  • Multi-Loop Diamond Pendant Necklace
    Estimate
    $5,000 - $7,000

    Multi-Loop Diamond Pendant Necklace

    Est.
    $5,000 - $7,000
    Newel Auctions
    Starting Bid
    $4,000
  • Colombian Emerald Bead Necklace,GIA
    Estimate
    $7,000 - $10,000

    Colombian Emerald Bead Necklace,GIA

    Est.
    $7,000 - $10,000
    Newel Auctions
    Starting Bid
    $4,400
  • Sandawana Emerald And Diamond Ring,GIA
    Estimate
    $4,500 - $6,500

    Sandawana Emerald And Diamond Ring,GIA

    Est.
    $4,500 - $6,500
    Newel Auctions
    Starting Bid
    $2,600
  • H. Stern White Gold And Diamond 'Metropolis' Bracelet
    Estimate
    $6,000 - $8,000

    H. Stern White Gold And Diamond 'Metropolis' Bracelet

    Est.
    $6,000 - $8,000
    Newel Auctions
    Starting Bid
    $3,000
  • Vintage Cluster Diamond Ring,Italian
    Estimate
    $3,500 - $4,500

    Vintage Cluster Diamond Ring,Italian

    Est.
    $3,500 - $4,500
    Newel Auctions
    Starting Bid
    $2,800
  • Pink Sapphire And Diamond Ring
    Estimate
    $2,200 - $3,500

    Pink Sapphire And Diamond Ring

    Est.
    $2,200 - $3,500
    Newel Auctions
    Starting Bid
    $1,400
  • Blue Topaz and Diamond Earrings
    Estimate
    $3,500 - $4,500

    Blue Topaz and Diamond Earrings

    Est.
    $3,500 - $4,500
    Newel Auctions
    Starting Bid
    $2,600
  • Diamond Cross Pendant/Necklace
    Estimate
    $1,800 - $3,000

    Diamond Cross Pendant/Necklace

    Est.
    $1,800 - $3,000
    Newel Auctions
    Starting Bid
    $1,200
  • Sapphire and Diamond Ring
    Estimate
    $2,000 - $3,000

    Sapphire and Diamond Ring

    Est.
    $2,000 - $3,000
    Newel Auctions
    Starting Bid
    $1,100
  • Black Pearl and Diamond Ring
    Estimate
    $2,500 - $3,500

    Black Pearl and Diamond Ring

    Est.
    $2,500 - $3,500
    Newel Auctions
    Starting Bid
    $1,800
  • Sapphire And Diamond Ring
    Estimate
    $3,000 - $4,000

    Sapphire And Diamond Ring

    Est.
    $3,000 - $4,000
    Newel Auctions
    Starting Bid
    $1,800
  • Pearl And Diamond Spray Ring
    Estimate
    $2,500 - $3,500

    Pearl And Diamond Spray Ring

    Est.
    $2,500 - $3,500
    Newel Auctions
    Starting Bid
    $1,600
  • Sapphire And Diamond Bracelet In white Gold
    Estimate
    $3,800 - $5,000

    Sapphire And Diamond Bracelet In white Gold

    Est.
    $3,800 - $5,000
    Newel Auctions
    Starting Bid
    $2,600

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.

 

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