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  • 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
    $7,500
  • Majestic 1.97 Ct GIA Certified Natural Garnet
    Estimate
    $1,500 - $2,100

    Majestic 1.97 Ct GIA Certified Natural Garnet

    Est.
    $1,500 - $2,100
    1 Great Deal Auctions
    1 Bid
    Current Bid
    $1
  • (4) Glass Vials of Various Real Stones
    Estimate
    $80 - $125

    (4) Glass Vials of Various Real Stones

    Est.
    $80 - $125
    Sarasota Estate Auction
    0 Bids
    Starting Bid
    $40
  • Impressive 13.01 Carat Pear Cut Natural Amethyst
    Estimate
    $400 - $600

    Impressive 13.01 Carat Pear Cut Natural Amethyst

    Est.
    $400 - $600
    Sarasota Estate Auction
    1 Bid
    Current Bid
    $200
  • 12.00 Carat Lab Made Pink Sapphire
    Estimate
    $400 - $500

    12.00 Carat Lab Made Pink Sapphire

    Est.
    $400 - $500
    Sarasota Estate Auction
    0 Bids
    Starting Bid
    $200
  • 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
    $5,000
  • 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
    $5,900
  • 14K Gold Gemstone Pin and Pendant
    Estimate
    $300 - $500

    14K Gold Gemstone Pin and Pendant

    Est.
    $300 - $500
    Locati LLC
    0 Bids
    Starting Bid
    $150
  • Five Piece 14K Gemstone Rings and Pendant
    Estimate
    $300 - $500

    Five Piece 14K Gemstone Rings and Pendant

    Est.
    $300 - $500
    Locati LLC
    1 Bid
    Current Bid
    $150
  • 14K Gemstone Slide with Sterling Silver Omega Chain
    Estimate
    $300 - $500

    14K Gemstone Slide with Sterling Silver Omega Chain

    Est.
    $300 - $500
    Locati LLC
    0 Bids
    Starting Bid
    $150
  • Pair of Asch Grossbardt 14k Gold, Diamond, and Gemstone Hoop Earrings - Gross 13.1 g.
    Estimate
    $650 - $1,000

    Pair of Asch Grossbardt 14k Gold, Diamond, and Gemstone Hoop Earrings - Gross 13.1 g.

    Est.
    $650 - $1,000
    Sarasota Estate Auction
    2 Bids
    Current Bid
    $500
  • 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
  • Judith Ripka Marked Sterling Silver Multi-Gemstone Cuff Bracelet - Gross 2.350 ozt.
    Estimate
    $200 - $400

    Judith Ripka Marked Sterling Silver Multi-Gemstone Cuff Bracelet - Gross 2.350 ozt.

    Est.
    $200 - $400
    Sarasota Estate Auction
    1 Bid
    Current Bid
    $100
  • Pair of Asch Grossbardt Multi-Color Gemstone Inlay and 14k Gold Frog Cufflinks - Gross 15.0 g. 
    Estimate
    $900 - $1,500

    Pair of Asch Grossbardt Multi-Color Gemstone Inlay and 14k Gold Frog Cufflinks - Gross 15.0 g. 

    Est.
    $900 - $1,500
    Sarasota Estate Auction
    1 Bid
    Current Bid
    $400
  • 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
  • David Yurman Sterling Silver Topaz, Amethyst and Hematite Doublet Chandelier Earrings
    Estimate
    $300 - $400

    David Yurman Sterling Silver Topaz, Amethyst and Hematite Doublet Chandelier Earrings

    Est.
    $300 - $400
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $200
  • Platinum Ruby and Diamond Drop Earrings
    Estimate
    $3,000 - $4,000

    Platinum Ruby and Diamond Drop Earrings

    Est.
    $3,000 - $4,000
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $2,000
  • 18K Yellow Gold Sapphire and Diamond Earrings
    Estimate
    $375 - $500

    18K Yellow Gold Sapphire and Diamond Earrings

    Est.
    $375 - $500
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $250
  • 14K Yellow Gold Blue Topaz, Diamond and Black Spinel Drop Earrings
    Estimate
    $550 - $700

    14K Yellow Gold Blue Topaz, Diamond and Black Spinel Drop Earrings

    Est.
    $550 - $700
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $350
  • 14K White Gold Star Sapphire and Diamond Stud Earrings
    Estimate
    $1,300 - $1,800

    14K White Gold Star Sapphire and Diamond Stud Earrings

    Est.
    $1,300 - $1,800
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $900
  • 18K White Gold Pearl and Diamond Earrings
    Estimate
    $375 - $500

    18K White Gold Pearl and Diamond Earrings

    Est.
    $375 - $500
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $250
  • 14K Yellow Gold Onyx and Diamond Half-Hoop Earrings
    Estimate
    $2,500 - $3,250

    14K Yellow Gold Onyx and Diamond Half-Hoop Earrings

    Est.
    $2,500 - $3,250
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,600
  • 18K Yellow Gold Pearl and Diamond Pendant Earrings
    Estimate
    $1,300 - $1,800

    18K Yellow Gold Pearl and Diamond Pendant Earrings

    Est.
    $1,300 - $1,800
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $900
  • 18K White Gold, White and Black Pearl and Diamond Earrings
    Estimate
    $1,400 - $1,900

    18K White Gold, White and Black Pearl and Diamond Earrings

    Est.
    $1,400 - $1,900
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $950
  • 18K White Gold Sapphire and Diamond Halo Earrings
    Estimate
    $900 - $1,200

    18K White Gold Sapphire and Diamond Halo Earrings

    Est.
    $900 - $1,200
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $600
  • Platinum Oval Cut Sapphire and Diamond Pendant Earrings
    Estimate
    $1,500 - $2,000

    Platinum Oval Cut Sapphire and Diamond Pendant Earrings

    Est.
    $1,500 - $2,000
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,000
  • 14K Yellow and White Gold Ruby, Sapphire, Emerald, and Diamond Earrings
    Estimate
    $1,100 - $1,500

    14K Yellow and White Gold Ruby, Sapphire, Emerald, and Diamond Earrings

    Est.
    $1,100 - $1,500
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $750
  • 18K Yellow Gold Diamond, Ruby, Sapphire, and Emerald Half-Hoop Earrings
    Estimate
    $2,250 - $3,000

    18K Yellow Gold Diamond, Ruby, Sapphire, and Emerald Half-Hoop Earrings

    Est.
    $2,250 - $3,000
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,500
  • 18K White Gold, Pearl, Diamond and Multigem Earrings
    Estimate
    $600 - $800

    18K White Gold, Pearl, Diamond and Multigem Earrings

    Est.
    $600 - $800
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $400
  • 18K White Gold Emerald and Diamond Cluster Earrings
    Estimate
    $1,000 - $1,400

    18K White Gold Emerald and Diamond Cluster Earrings

    Est.
    $1,000 - $1,400
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $700
  • Retro 18K Yellow Gold Ruby and Diamond Earrings
    Estimate
    $3,000 - $4,000

    Retro 18K Yellow Gold Ruby and Diamond Earrings

    Est.
    $3,000 - $4,000
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $2,000
  • 14K Yellow Gold Opal and Diamond Round Earrings
    Estimate
    $1,300 - $1,800

    14K Yellow Gold Opal and Diamond Round Earrings

    Est.
    $1,300 - $1,800
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $900
  • 18K Rose Gold Ruby and Diamond Pendant Earrings
    Estimate
    $4,000 - $5,500

    18K Rose Gold Ruby and Diamond Pendant Earrings

    Est.
    $4,000 - $5,500
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $2,750
  • 14K White Gold Sapphire and Diamond Halo Stud Earrings
    Estimate
    $1,300 - $1,800

    14K White Gold Sapphire and Diamond Halo Stud Earrings

    Est.
    $1,300 - $1,800
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $900
  • Retro 14K Yellow Gold and Platinum Ruby and Diamond Bow Earrings
    Estimate
    $2,500 - $3,250

    Retro 14K Yellow Gold and Platinum Ruby and Diamond Bow Earrings

    Est.
    $2,500 - $3,250
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,600
  • 18K White Gold and Pearl Cluster Earrings
    Estimate
    $225 - $300

    18K White Gold and Pearl Cluster Earrings

    Est.
    $225 - $300
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $150
  • 18K Yellow Gold and Platinum Synthetic Ruby and Diamond Earrings
    Estimate
    $900 - $1,200

    18K Yellow Gold and Platinum Synthetic Ruby and Diamond Earrings

    Est.
    $900 - $1,200
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $600
  • 18K Yellow Gold Carved Rubellite Tourmaline and Diamond Leaf Earrings
    Estimate
    $1,900 - $2,500

    18K Yellow Gold Carved Rubellite Tourmaline and Diamond Leaf Earrings

    Est.
    $1,900 - $2,500
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,300
  • 14K Yellow Gold Diamond And Cultured Pearl Drop Earrings
    Estimate
    $900 - $1,200

    14K Yellow Gold Diamond And Cultured Pearl Drop Earrings

    Est.
    $900 - $1,200
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $600
  • 18K Yellow and White Gold Marquise Cut Ruby and Diamond Drop Earrings
    Estimate
    $1,300 - $1,800

    18K Yellow and White Gold Marquise Cut Ruby and Diamond Drop Earrings

    Est.
    $1,300 - $1,800
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $900
  • 14K Yellow Gold Citrine, Diamond, and Onyx Earrings
    Estimate
    $1,500 - $2,000

    14K Yellow Gold Citrine, Diamond, and Onyx Earrings

    Est.
    $1,500 - $2,000
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,000
  • 18K White Gold Diamond And Pearl Earrings With White And Gold Cultured Pearl Drops
    Estimate
    $900 - $1,200

    18K White Gold Diamond And Pearl Earrings With White And Gold Cultured Pearl Drops

    Est.
    $900 - $1,200
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $600
  • 18K White Gold Black and White Cultured Pearl and Diamond Earrings
    Estimate
    $900 - $1,200

    18K White Gold Black and White Cultured Pearl and Diamond Earrings

    Est.
    $900 - $1,200
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $600
  • 18K Yellow Gold Onyx, Mother of Pearl, Blue Topaz And Diamond Drop Earrings
    Estimate
    $1,100 - $1,400

    18K Yellow Gold Onyx, Mother of Pearl, Blue Topaz And Diamond Drop Earrings

    Est.
    $1,100 - $1,400
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $700
  • Antique 14K Yellow Gold and Turquoise Repousse Pendant Earrings
    Estimate
    $2,750 - $3,500

    Antique 14K Yellow Gold and Turquoise Repousse Pendant Earrings

    Est.
    $2,750 - $3,500
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $1,800
  • 14K Yellow Gold and Labradorite Drop Earrings
    Estimate
    $450 - $600

    14K Yellow Gold and Labradorite Drop Earrings

    Est.
    $450 - $600
    Hampton Estate Auction
    0 Bids
    Starting Bid
    $300
  • PLATINUM 1.40CT DIAMOND, RUBY, EMERALD, AND SAPPHIRE BROOCH
    Estimate
    $6,000 - $12,000

    PLATINUM 1.40CT DIAMOND, RUBY, EMERALD, AND SAPPHIRE BROOCH

    Est.
    $6,000 - $12,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $6,000
  • Eclectic Asymmetrical Assemblage Contemporary Studio Art Brooch
    Estimate
    $600 - $800

    Eclectic Asymmetrical Assemblage Contemporary Studio Art Brooch

    Est.
    $600 - $800
    Sarasota Estate Auction
    0 Bids
    Starting Bid
    $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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