477 Results
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  • GIA 0.63 ct. Natural Round Loose Diamond I, SI-1
    Estimate
    $2,089 - $2,880

    GIA 0.63 ct. Natural Round Loose Diamond I, SI-1

    Est.
    $2,089 - $2,880
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • GIA 2.02 ct. Natural Cushion Modified Loose Diamond F, SI-1
    Estimate
    $16,349 - $18,790

    GIA 2.02 ct. Natural Cushion Modified Loose Diamond F, SI-1

    Est.
    $16,349 - $18,790
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • GIA 2.13 ct. Natural Round Loose Brilliant Diamond I, SI-2
    Estimate
    $14,789 - $16,521

    GIA 2.13 ct. Natural Round Loose Brilliant Diamond I, SI-2

    Est.
    $14,789 - $16,521
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • GIA  1.01 ct. Round Brilliant Natural Loose Diamond  E, VVS1
    Estimate
    $8,854 - $9,590

    GIA 1.01 ct. Round Brilliant Natural Loose Diamond E, VVS1

    Est.
    $8,854 - $9,590
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA 2.01 ct. Natural Cushion Modified Loose Diamond G, SI-1
    Estimate
    $12,500 - $14,500

    GIA 2.01 ct. Natural Cushion Modified Loose Diamond G, SI-1

    Est.
    $12,500 - $14,500
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • GIA 1.71 ct. Natural Emerald Cut Loose Diamond H, SI-1
    Estimate
    $8,700 - $10,220

    GIA 1.71 ct. Natural Emerald Cut Loose Diamond H, SI-1

    Est.
    $8,700 - $10,220
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA 1.51 ct. Natural Cushion Modified Loose Diamond E, VS1
    Estimate
    $8,090 - $9,249

    GIA 1.51 ct. Natural Cushion Modified Loose Diamond E, VS1

    Est.
    $8,090 - $9,249
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • GIA 1.01 ct. Natural Emerald Cut Loose Diamond I, VS2
    Estimate
    $3,580 - $4,750

    GIA 1.01 ct. Natural Emerald Cut Loose Diamond I, VS2

    Est.
    $3,580 - $4,750
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA 1.51 ct. Natural Cushion Modified Loose Diamond D, VS1
    Estimate
    $11,970 - $13,120

    GIA 1.51 ct. Natural Cushion Modified Loose Diamond D, VS1

    Est.
    $11,970 - $13,120
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • AGLS 4.75 ct. Loose Natural Padparadscha Sapphire
    Estimate
    $78,743 - $83,125

    AGLS 4.75 ct. Loose Natural Padparadscha Sapphire

    Est.
    $78,743 - $83,125
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $5,000
  • GIA Natural 1.00 ct. Round Brilliant D VVS2
    Estimate
    $8,190 - $10,770

    GIA Natural 1.00 ct. Round Brilliant D VVS2

    Est.
    $8,190 - $10,770
    Reserve Stock Auctions
    1 Bid
    Current Bid
    $500
  • GIA Natural 1.00 ct. Round Brilliant E, VVS2
    Estimate
    $7,190 - $9,370

    GIA Natural 1.00 ct. Round Brilliant E, VVS2

    Est.
    $7,190 - $9,370
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA 2.14 ct. Extremely Rare Natural Color Change Russian Alexandrite
    Estimate
    $203,300 - $224,700

    GIA 2.14 ct. Extremely Rare Natural Color Change Russian Alexandrite

    Est.
    $203,300 - $224,700
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100,000
  • 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 10.91 ct. Tanzanite & Diamond Cocktail Ring Set in 18k Yellow Gold
    Estimate
    $21,970 - $23,889

    GIA 10.91 ct. Tanzanite & Diamond Cocktail Ring Set in 18k Yellow Gold

    Est.
    $21,970 - $23,889
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • 2.00 ct. Natural Round Diamond inside & Out Hoop Earrings in 14k White Gold
    Estimate
    $9,475 - $10,789

    2.00 ct. Natural Round Diamond inside & Out Hoop Earrings in 14k White Gold

    Est.
    $9,475 - $10,789
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • Collection of Unmounted Rubies
    Estimate
    $500 - $700

    Collection of Unmounted Rubies

    Est.
    $500 - $700
    Fine Estate, Inc.
    0 Bids
    Starting Bid
    $250
  • Collection of Unmounted Sapphires
    Estimate
    $700 - $900

    Collection of Unmounted Sapphires

    Est.
    $700 - $900
    Fine Estate, Inc.
    0 Bids
    Starting Bid
    $350
  • 14kt White Gold GemStone Bracelet
    Estimate
    $550 - $2,000

    14kt White Gold GemStone Bracelet

    Est.
    $550 - $2,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $550
  •  Judith Ripka Sterling & Pink Gemstone Jewelry
    Estimate
    $150 - $250

    Judith Ripka Sterling & Pink Gemstone Jewelry

    Est.
    $150 - $250
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $90
  • Group of Sterling Silver and Gemstone Jewelry, 6 pcs
    Estimate
    $80 - $120

    Group of Sterling Silver and Gemstone Jewelry, 6 pcs

    Est.
    $80 - $120
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $50
  • 4 Sterling & Gemstone Judith Ripka Bangles & 5 Rings
    Estimate
    $150 - $250

    4 Sterling & Gemstone Judith Ripka Bangles & 5 Rings

    Est.
    $150 - $250
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $90
  • Roberto Vengoechea Custom 14K & Gemstone Ring, Sz 9
    Estimate
    $3,000 - $5,000

    Roberto Vengoechea Custom 14K & Gemstone Ring, Sz 9

    Est.
    $3,000 - $5,000
    Everard Auctions and Apprai...
    0 Bids
    Starting Bid
    $1,800
  • A Vintage 14K Gold and Gemstone Cocktail Ring
    Estimate
    $600 - $800

    A Vintage 14K Gold and Gemstone Cocktail Ring

    Est.
    $600 - $800
    Peterborough Auctions LLC
    0 Bids
    Starting Bid
    $300
  • Two Vintage 10K Gold and Gemstone Rings
    Estimate
    $400 - $600

    Two Vintage 10K Gold and Gemstone Rings

    Est.
    $400 - $600
    Peterborough Auctions LLC
    0 Bids
    Starting Bid
    $200
  • Oliver Hardy Sterling Silver, Gold, and Gemstone Case
    Estimate
    $300 - $500

    Oliver Hardy Sterling Silver, Gold, and Gemstone Case

    Est.
    $300 - $500
    Abell Auction Company
    1 Bid
    Current Bid
    $150
  • An Antique 10K Opal and Gemstone Cluster Ring
    Estimate
    $200 - $300

    An Antique 10K Opal and Gemstone Cluster Ring

    Est.
    $200 - $300
    Peterborough Auctions LLC
    1 Bid
    Current Bid
    $100
  • 4.62 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $6,900 - $9,300

    4.62 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $6,900 - $9,300
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,800
  • 5.32 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $8,800 - $11,900

    5.32 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $8,800 - $11,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $6,000
  • 9.38 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,800 - $5,100

    9.38 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,800 - $5,100
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
  • 4.02 carat diamond pair, Princess cut Diamonds IGI Graded
    Estimate
    $2,500 - $3,500

    4.02 carat diamond pair, Princess cut Diamonds IGI Graded

    Est.
    $2,500 - $3,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $1,800
  • 4.76 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $2,400 - $3,400

    4.76 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $2,400 - $3,400
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $1,700
  • 9.28 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $3,500 - $4,800

    9.28 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $3,500 - $4,800
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
  • 10.42 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $6,300 - $8,500

    10.42 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $6,300 - $8,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,400
  • 8.82 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,600 - $4,900

    8.82 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,600 - $4,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
  • 10.38 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,600 - $4,900

    10.38 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,600 - $4,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
  • 8.08 carat diamond pair, Emerald cut Diamonds IGI Graded
    Estimate
    $4,000 - $5,500

    8.08 carat diamond pair, Emerald cut Diamonds IGI Graded

    Est.
    $4,000 - $5,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,800
  • 10.46 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $6,300 - $8,500

    10.46 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $6,300 - $8,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,400
  • 8.76 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $7,100 - $9,500

    8.76 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $7,100 - $9,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,800
  • 8.16 carat diamond pair, Cushion cut Diamonds IGI Graded
    Estimate
    $3,800 - $5,200

    8.16 carat diamond pair, Cushion cut Diamonds IGI Graded

    Est.
    $3,800 - $5,200
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
  • 8.11 carat diamond pair, Radiant cut Diamonds IGI Graded
    Estimate
    $3,200 - $4,400

    8.11 carat diamond pair, Radiant cut Diamonds IGI Graded

    Est.
    $3,200 - $4,400
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,200
  • 10.02 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $8,600 - $11,600

    10.02 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $8,600 - $11,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $6,000
  • 10.02 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $6,300 - $8,500

    10.02 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $6,300 - $8,500
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,400
  • 9.69 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $6,400 - $8,600

    9.69 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $6,400 - $8,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,400
  • 8.27 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $5,800 - $7,900

    8.27 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $5,800 - $7,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,000
  • 8.79 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $3,400 - $4,700

    8.79 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $3,400 - $4,700
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
  • 10.10 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,500 - $4,700

    10.10 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,500 - $4,700
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
  • 8.61 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $3,400 - $4,600

    8.61 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $3,400 - $4,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400

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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