944 Results
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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
  • 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
  • (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
  • 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
  • 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
  • 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
  • Diamond, Sapphire, Platinum Ring
    Estimate
    $1,200 - $1,400

    Diamond, Sapphire, Platinum Ring

    Est.
    $1,200 - $1,400
    Fine Estate, Inc.
    0 Bids
    Starting Bid
    $600
  • 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
  • 8.11 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $4,000 - $5,400

    8.11 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $4,000 - $5,400
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,800
    Buy Now Price
    $3,800
  • 7.26 carat diamond pair, Princess cut Diamonds IGI Graded
    Estimate
    $5,500 - $7,400

    7.26 carat diamond pair, Princess cut Diamonds IGI Graded

    Est.
    $5,500 - $7,400
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $3,800
    Buy Now Price
    $5,000
  • 12.17 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $7,400 - $10,000

    12.17 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $7,400 - $10,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $5,000
    Buy Now Price
    $7,000
  • 8.09 carat diamond pair, Radiant cut Diamonds IGI Graded
    Estimate
    $8,900 - $12,000

    8.09 carat diamond pair, Radiant cut Diamonds IGI Graded

    Est.
    $8,900 - $12,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $6,000
    Buy Now Price
    $8,000
  • 8.81 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $3,800 - $5,200

    8.81 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $3,800 - $5,200
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 5.44 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $2,600 - $3,600

    5.44 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $2,600 - $3,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $1,800
    Buy Now Price
    $2,400
  • 8.04 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $3,300 - $4,500

    8.04 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $3,300 - $4,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
    Buy Now Price
    $3,200
  • 10.49 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $6,400 - $8,700

    10.49 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $6,400 - $8,700
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,400
    Buy Now Price
    $6,000
  • 10.66 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $3,800 - $5,100

    10.66 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $3,800 - $5,100
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 10.08 carat diamond pair, Cushion cut Diamonds IGI Graded
    Estimate
    $3,600 - $4,900

    10.08 carat diamond pair, Cushion cut Diamonds IGI Graded

    Est.
    $3,600 - $4,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 8.60 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $3,300 - $4,500

    8.60 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $3,300 - $4,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
    Buy Now Price
    $3,200
  • 7.74 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,100 - $4,300

    7.74 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,100 - $4,300
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,200
    Buy Now Price
    $3,000
  • 8.67 carat diamond pair, Radiant cut Diamonds IGI Graded
    Estimate
    $12,300 - $16,500

    8.67 carat diamond pair, Radiant cut Diamonds IGI Graded

    Est.
    $12,300 - $16,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $8,500
    Buy Now Price
    $12,000
  • 6.89 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $2,900 - $4,000

    6.89 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $2,900 - $4,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,000
    Buy Now Price
    $2,800
  • 7.19 carat diamond pair, Radiant cut Diamonds IGI Graded
    Estimate
    $5,000 - $6,800

    7.19 carat diamond pair, Radiant cut Diamonds IGI Graded

    Est.
    $5,000 - $6,800
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $3,400
    Buy Now Price
    $4,600
  • 10.06 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $6,600 - $8,900

    10.06 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $6,600 - $8,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,600
    Buy Now Price
    $6,000
  • 13.88 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $13,000 - $17,500

    13.88 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $13,000 - $17,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $9,000
    Buy Now Price
    $12,000
  • 10.71 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $3,500 - $4,800

    10.71 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $3,500 - $4,800
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
    Buy Now Price
    $3,200
  • 8.03 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $3,900 - $5,300

    8.03 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $3,900 - $5,300
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,800
    Buy Now Price
    $3,800
  • 9.15 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $6,200 - $8,400

    9.15 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $6,200 - $8,400
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,200
    Buy Now Price
    $5,500
  • 6.67 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $2,800 - $3,900

    6.67 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $2,800 - $3,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,000
    Buy Now Price
    $2,800
  • 10.58 carat diamond pair, Cushion cut Diamonds IGI Graded
    Estimate
    $3,700 - $5,100

    10.58 carat diamond pair, Cushion cut Diamonds IGI Graded

    Est.
    $3,700 - $5,100
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 10.09 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $4,900 - $6,600

    10.09 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $4,900 - $6,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $3,400
    Buy Now Price
    $4,600
  • 7.30 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $3,000 - $4,100

    7.30 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $3,000 - $4,100
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,200
    Buy Now Price
    $3,000
  • 10.18 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $6,200 - $8,400

    10.18 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $6,200 - $8,400
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,200
    Buy Now Price
    $5,500
  • 5.18 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $2,900 - $4,000

    5.18 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $2,900 - $4,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,000
    Buy Now Price
    $2,800
  • 8.87 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $3,800 - $5,200

    8.87 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $3,800 - $5,200
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 5.62 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $2,600 - $3,500

    5.62 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $2,600 - $3,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $1,800
    Buy Now Price
    $2,400
  • Set of 27 Lab Grown Columbian Emerald Layout
    Estimate
    $36,200 - $48,300

    Set of 27 Lab Grown Columbian Emerald Layout

    Est.
    $36,200 - $48,300
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $24,000
    Buy Now Price
    $32,000
  • Set of 31 Lab Grown Blue Sapphire Layout
    Estimate
    $35,900 - $48,000

    Set of 31 Lab Grown Blue Sapphire Layout

    Est.
    $35,900 - $48,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $22,000
    Buy Now Price
    $30,000
  • 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
  • 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

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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