1463 Results
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  • 18k Gold Vintage Cross with Multicolor Semiprecious Gemstones
    Estimate
    $8,000 - $9,500

    18k Gold Vintage Cross with Multicolor Semiprecious Gem...

    Est.
    $8,000 - $9,500
    Prime Auction Gallery
    0 Bids
    Starting Bid
    $6,500
  • Natural Loose Diamond Round, 1.58 ct., G, SI2 ,G, VG, VG, --
    Estimate
    $7,203 - $10,003

    Natural Loose Diamond Round, 1.58 ct., G, SI2 ,G, VG, V...

    Est.
    $7,203 - $10,003
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • 3.80 ct. Natural Loose Weird Unique Cut Diamond, H, SI2-, VG, VG, -Faint-
    Estimate
    $28,500 - $34,200

    3.80 ct. Natural Loose Weird Unique Cut Diamond, H, SI2...

    Est.
    $28,500 - $34,200
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • GIA 1.05 ct. Internally Flawless Light Pink Cushion Cut Loose Diamond
    Estimate
    $75,888 - $82,357

    GIA 1.05 ct. Internally Flawless Light Pink Cushion Cut...

    Est.
    $75,888 - $82,357
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $1,000
  • GIA 6.10 ct. Loose Emerald Heart Cut
    Estimate
    $18,900 - $22,900

    GIA 6.10 ct. Loose Emerald Heart Cut

    Est.
    $18,900 - $22,900
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA, Trapezoid, 0.79 ct, F, VS1-, VG, EX, -NONE-
    Estimate
    $6,773 - $8,429

    GIA, Trapezoid, 0.79 ct, F, VS1-, VG, EX, -NONE-

    Est.
    $6,773 - $8,429
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $3,960
  • AGL 4.75 ct. Natural Padparadscha Sapphire
    Estimate
    $137,900 - $154,880

    AGL 4.75 ct. Natural Padparadscha Sapphire

    Est.
    $137,900 - $154,880
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $1,000
  •  GIA 1.00 ct. Cushion Modified Fancy Light Greenish Blue, SI2-, EX, VG, Faint-
    Estimate
    $64,000 - $69,000

    GIA 1.00 ct. Cushion Modified Fancy Light Greenish Blue...

    Est.
    $64,000 - $69,000
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $1,000
  • 14kt Yellow Gold GemStone Earrings
    Estimate
    $420 - $900

    14kt Yellow Gold GemStone Earrings

    Est.
    $420 - $900
    Robinhood Auctions
    0 Bids
    Starting Bid
    $420
  • GIA 9.75 ct. Emerald & Diamonds Ring in 14k White Gold
    Estimate
    $27,545 - $32,595

    GIA 9.75 ct. Emerald & Diamonds Ring in 14k White Gold

    Est.
    $27,545 - $32,595
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA Certified Extremely Rare "Russian" Alexandrite  Heart Shape 2.14 Carats
    Estimate
    $214,867 - $249,527

    GIA Certified Extremely Rare "Russian" Alexandrite Hear...

    Est.
    $214,867 - $249,527
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $5,000
  • GIA 9.75 ct. Emerald & Diamond Ring In 14k White Gold
    Estimate
    $27,545 - $32,595

    GIA 9.75 ct. Emerald & Diamond Ring In 14k White Gold

    Est.
    $27,545 - $32,595
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • 14kt White Gold GemStone Bracelet
    Estimate
    $390 - $1,000

    14kt White Gold GemStone Bracelet

    Est.
    $390 - $1,000
    Robinhood Auctions
    0 Bids
    Starting Bid
    $390
  • ANTONINI 18K YELLOW GOLD GEMSTONE PIN
    Estimate
    $1,278 - $2,556

    ANTONINI 18K YELLOW GOLD GEMSTONE PIN

    Est.
    $1,278 - $2,556
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,278
  • 5.00 Ct. Green Amethyst Oval Ring 10k White Gold
    Estimate
    $2,265 - $3,095

    5.00 Ct. Green Amethyst Oval Ring 10k White Gold

    Est.
    $2,265 - $3,095
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • 14K WHITE GOLD 0.08CT DIAMOND, AQUAMARINE, AND SAPPHIRE PENDANT NECKLACE
    Estimate
    $224 - $447

    14K WHITE GOLD 0.08CT DIAMOND, AQUAMARINE, AND SAPPHIRE...

    Est.
    $224 - $447
    Robinhood Auctions
    0 Bids
    Starting Bid
    $224
  • 34.43 ct. Heart Shape Pink & Blue Topaz Tennis Bracelet 14K White Gold (23.51grams)
    Estimate
    $10,175 - $11,100

    34.43 ct. Heart Shape Pink & Blue Topaz Tennis Bracelet...

    Est.
    $10,175 - $11,100
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • 1.25 ct.  Blue Topaz Heart Pendant in 14k White Gold
    Estimate
    $1,099 - $1,379

    1.25 ct. Blue Topaz Heart Pendant in 14k White Gold

    Est.
    $1,099 - $1,379
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • OSCAR HEYMAN 18K YELLOW GOLD 1.78CT DIAMOND AND SAPPHIRE RING
    Estimate
    $7,245 - $14,490

    OSCAR HEYMAN 18K YELLOW GOLD 1.78CT DIAMOND AND SAPPHIR...

    Est.
    $7,245 - $14,490
    Robinhood Auctions
    0 Bids
    Starting Bid
    $7,245
  • 18kt White Gold 1.48ctw Diamond Ring
    Estimate
    $3,400 - $6,400

    18kt White Gold 1.48ctw Diamond Ring

    Est.
    $3,400 - $6,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,400
  • 18kt White Gold 1.48ctw Diamond Ring
    Estimate
    $3,400 - $6,400

    18kt White Gold 1.48ctw Diamond Ring

    Est.
    $3,400 - $6,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,400
  • 2.00 ct. Vintage Morganite & Diamond Pendant in 14K Rose Gold
    Estimate
    $2,200 - $2,400

    2.00 ct. Vintage Morganite & Diamond Pendant in 14K Ros...

    Est.
    $2,200 - $2,400
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • 1.50 Ct. Blue Topaz & Diamond Halo Pendant & 18" Necklace In 10K White Gold
    Estimate
    $1,520 - $1,940

    1.50 Ct. Blue Topaz & Diamond Halo Pendant & 18" Neckla...

    Est.
    $1,520 - $1,940
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • 1.34 ct. Natural Diamond and Emerald Pendant Necklace in 14K White Gold
    Estimate
    $1,748 - $2,349

    1.34 ct. Natural Diamond and Emerald Pendant Necklace i...

    Est.
    $1,748 - $2,349
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • 0.50 ct. Alexandrite & Diamond Half Eternity Ring 14K White Gold (G-H, SI)
    Estimate
    $2,452 - $3,175

    0.50 ct. Alexandrite & Diamond Half Eternity Ring 14K W...

    Est.
    $2,452 - $3,175
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $500
  • GIA 10.91 ct. Natural Tanzanite & Diamond Ring 18k Yellow Gold
    Estimate
    $17,945 - $22,775

    GIA 10.91 ct. Natural Tanzanite & Diamond Ring 18k Yell...

    Est.
    $17,945 - $22,775
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $2,500
  • 14kt White Gold 0.88ctw Diamond Pendant
    Estimate
    $5,100 - $6,500

    14kt White Gold 0.88ctw Diamond Pendant

    Est.
    $5,100 - $6,500
    Robinhood Auctions
    0 Bids
    Starting Bid
    $5,100
  • 14kt White Gold 1.12ctw Diamond Pendant
    Estimate
    $3,900 - $7,200

    14kt White Gold 1.12ctw Diamond Pendant

    Est.
    $3,900 - $7,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $3,900
  • 4.25 ct. Amethyst & Diamond Vintage Halo Studs Earrings 14K White Gold
    Estimate
    $3,900 - $4,350

    4.25 ct. Amethyst & Diamond Vintage Halo Studs Earrings...

    Est.
    $3,900 - $4,350
    Reserve Stock Auctions
    0 Bids
    Starting Bid
    $100
  • 18kt Yellow Gold 1.3ctw Diamond Ring
    Estimate
    $1,800 - $3,600

    18kt Yellow Gold 1.3ctw Diamond Ring

    Est.
    $1,800 - $3,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,800
  • 14kt White Gold 0.38ctw Diamond Ring
    Estimate
    $1,400 - $2,600

    14kt White Gold 0.38ctw Diamond Ring

    Est.
    $1,400 - $2,600
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,400
  • 14kt Yellow Gold 1.63ctw Diamond Ring
    Estimate
    $1,900 - $3,400

    14kt Yellow Gold 1.63ctw Diamond Ring

    Est.
    $1,900 - $3,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,900
  • 18K WHITE GOLD 18.80CT DIAMOND NECKLACE
    Estimate
    $11,642 - $23,285

    18K WHITE GOLD 18.80CT DIAMOND NECKLACE

    Est.
    $11,642 - $23,285
    Robinhood Auctions
    0 Bids
    Starting Bid
    $11,642
  • POMELLATO 18K WHITE GOLD AQUAMARINE RING
    Estimate
    $1,890 - $3,780

    POMELLATO 18K WHITE GOLD AQUAMARINE RING

    Est.
    $1,890 - $3,780
    Robinhood Auctions
    0 Bids
    Starting Bid
    $1,890
  • PLATINUM 5.84CT DIAMOND AND EMERALD HEART NECKLACE
    Estimate
    $25,725 - $51,450

    PLATINUM 5.84CT DIAMOND AND EMERALD HEART NECKLACE

    Est.
    $25,725 - $51,450
    Robinhood Auctions
    0 Bids
    Starting Bid
    $25,725
  • 14K YELLOW GOLD 0.11CT DIAMOND AND OPAL PENDANT NECKLACE
    Estimate
    $252 - $504

    14K YELLOW GOLD 0.11CT DIAMOND AND OPAL PENDANT NECKLAC...

    Est.
    $252 - $504
    Robinhood Auctions
    0 Bids
    Starting Bid
    $252
  • BVLGARI DOPPIO CUORE 18K YELLOW GOLD HEMATITE CUFFLINKS
    Estimate
    $998 - $1,995

    BVLGARI DOPPIO CUORE 18K YELLOW GOLD HEMATITE CUFFLINKS...

    Est.
    $998 - $1,995
    Robinhood Auctions
    0 Bids
    Starting Bid
    $998
  • 14K WHITE GOLD 0.20CT DIAMOND AND RUBY HEART AND FLOWER PENDANT NECKLACE
    Estimate
    $378 - $756

    14K WHITE GOLD 0.20CT DIAMOND AND RUBY HEART AND FLOWER...

    Est.
    $378 - $756
    Robinhood Auctions
    0 Bids
    Starting Bid
    $378
  • 14K WHITE GOLD 0.10CT DIAMOND AND RUBY DROP EARRINGS
    Estimate
    $240 - $481

    14K WHITE GOLD 0.10CT DIAMOND AND RUBY DROP EARRINGS

    Est.
    $240 - $481
    Robinhood Auctions
    0 Bids
    Starting Bid
    $240
  • 14K YELLOW GOLD 0.15CT DIAMOND AND RUBY PENDANT NECKLACE
    Estimate
    $321 - $643

    14K YELLOW GOLD 0.15CT DIAMOND AND RUBY PENDANT NECKLAC...

    Est.
    $321 - $643
    Robinhood Auctions
    0 Bids
    Starting Bid
    $321
  • PIODORO 18K WHITE GOLD 2.20CT DIAMOND AND TOURMALINE NECKLACE
    Estimate
    $4,200 - $8,400

    PIODORO 18K WHITE GOLD 2.20CT DIAMOND AND TOURMALINE NE...

    Est.
    $4,200 - $8,400
    Robinhood Auctions
    0 Bids
    Starting Bid
    $4,200
  • 14K YELLOW GOLD 0.09CT DIAMOND AND RUBY RING
    Estimate
    $265 - $529

    14K YELLOW GOLD 0.09CT DIAMOND AND RUBY RING

    Est.
    $265 - $529
    Robinhood Auctions
    0 Bids
    Starting Bid
    $265
  • 14K YELLOW GOLD 0.15CT DIAMOND AND AQUAMARINE NECKLACE
    Estimate
    $299 - $599

    14K YELLOW GOLD 0.15CT DIAMOND AND AQUAMARINE NECKLACE

    Est.
    $299 - $599
    Robinhood Auctions
    0 Bids
    Starting Bid
    $299
  • 14K YELLOW GOLD 0.09CT DIAMOND AND EMERALD RING
    Estimate
    $265 - $529

    14K YELLOW GOLD 0.09CT DIAMOND AND EMERALD RING

    Est.
    $265 - $529
    Robinhood Auctions
    0 Bids
    Starting Bid
    $265
  • CHANEL COCO MINI 18K WHITE GOLD AMETHYST AND TOURMALINE RING
    Estimate
    $2,310 - $4,620

    CHANEL COCO MINI 18K WHITE GOLD AMETHYST AND TOURMALINE...

    Est.
    $2,310 - $4,620
    Robinhood Auctions
    0 Bids
    Starting Bid
    $2,310
  • PLATINUM 0.25CT DIAMOND AND RUBY RING
    Estimate
    $998 - $1,995

    PLATINUM 0.25CT DIAMOND AND RUBY RING

    Est.
    $998 - $1,995
    Robinhood Auctions
    0 Bids
    Starting Bid
    $998
  • 14K YELLOW GOLD 0.07CT DIAMOND AND RHODOLITE PEAR NECKLACE
    Estimate
    $146 - $292

    14K YELLOW GOLD 0.07CT DIAMOND AND RHODOLITE PEAR NECKL...

    Est.
    $146 - $292
    Robinhood Auctions
    0 Bids
    Starting Bid
    $146
  • 14K WHITE GOLD 0.15CT DIAMOND AND OPAL NECKLACE
    Estimate
    $299 - $599

    14K WHITE GOLD 0.15CT DIAMOND AND OPAL NECKLACE

    Est.
    $299 - $599
    Robinhood Auctions
    0 Bids
    Starting Bid
    $299

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.