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  • 111.58-Carat Topaz, Set of Three Gemstones
    Estimate
    $350 - $550

    111.58-Carat Topaz, Set of Three Gemstones

    Est.
    $350 - $550
    Fortuna Auction
    0 Bids
    Starting Bid
    $300
  • 30.50-Carat Oval Fancy Cut London Blue Topaz Gemstones
    Estimate
    $200 - $380

    30.50-Carat Oval Fancy Cut London Blue Topaz Gemstones

    Est.
    $200 - $380
    Fortuna Auction
    0 Bids
    Starting Bid
    $150
  • ESTATE GIA 4.00 CT ROUND BRILLIANT CUT DIAMOND
    Estimate
    $25,000 - $35,000

    ESTATE GIA 4.00 CT ROUND BRILLIANT CUT DIAMOND

    Est.
    $25,000 - $35,000
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $20,000
  • 11.95-Carat Carved Tanzanite Lot
    Estimate
    $400 - $600

    11.95-Carat Carved Tanzanite Lot

    Est.
    $400 - $600
    Fortuna Auction
    0 Bids
    Starting Bid
    $200
  • 179.70-Carat Lemon Quartz Octagon Emerald Cut Stone
    Estimate
    $225 - $300

    179.70-Carat Lemon Quartz Octagon Emerald Cut Stone

    Est.
    $225 - $300
    Fortuna Auction
    0 Bids
    Starting Bid
    $200
  • 233.48-Carat Asscher Cut Kunzite, GIA Certified
    Estimate
    $4,000 - $7,000

    233.48-Carat Asscher Cut Kunzite, GIA Certified

    Est.
    $4,000 - $7,000
    Fortuna Auction
    0 Bids
    Starting Bid
    $3,600
  • 24.30-Carat Tanzanite Cabochon Lot
    Estimate
    $600 - $1,000

    24.30-Carat Tanzanite Cabochon Lot

    Est.
    $600 - $1,000
    Fortuna Auction
    0 Bids
    Starting Bid
    $350
  • 9.80-Carat Opal Cabochon
    Estimate
    $275 - $600

    9.80-Carat Opal Cabochon

    Est.
    $275 - $600
    Fortuna Auction
    0 Bids
    Starting Bid
    $250
  • 48.10-Carat Green Fluorite Quartz Stone
    Estimate
    $225 - $300

    48.10-Carat Green Fluorite Quartz Stone

    Est.
    $225 - $300
    Fortuna Auction
    0 Bids
    Starting Bid
    $200
  • Three Natural Fancy Shape Rubies, No Heat
    Estimate
    $1,000 - $1,500

    Three Natural Fancy Shape Rubies, No Heat

    Est.
    $1,000 - $1,500
    Fortuna Auction
    0 Bids
    Starting Bid
    $600
  • 28.80-Carat Bi-Color Tourmaline Quartz Stone
    Estimate
    $225 - $300

    28.80-Carat Bi-Color Tourmaline Quartz Stone

    Est.
    $225 - $300
    Fortuna Auction
    0 Bids
    Starting Bid
    $200
  • 78.40-Carat Oval London Blue Topaz
    Estimate
    $600 - $800

    78.40-Carat Oval London Blue Topaz

    Est.
    $600 - $800
    Fortuna Auction
    0 Bids
    Starting Bid
    $550
  • 6.13-Carat Oval Star Ruby Cabochon - No Reserve Lot
    Estimate
    $100 - $150

    6.13-Carat Oval Star Ruby Cabochon - No Reserve Lot

    Est.
    $100 - $150
    Fortuna Auction
    0 Bids
    Starting Bid
    $50
  • 96.20-Carat Oval Fancy Cut Amethyst
    Estimate
    $200 - $360

    96.20-Carat Oval Fancy Cut Amethyst

    Est.
    $200 - $360
    Fortuna Auction
    0 Bids
    Starting Bid
    $175
  • 43.22-Carat Indigolite Tourmaline Color Quartz Stone
    Estimate
    $225 - $300

    43.22-Carat Indigolite Tourmaline Color Quartz Stone

    Est.
    $225 - $300
    Fortuna Auction
    0 Bids
    Starting Bid
    $200
  • 23.60-Carat Aquamarine Blue Quartz Stone
    Estimate
    $225 - $300

    23.60-Carat Aquamarine Blue Quartz Stone

    Est.
    $225 - $300
    Fortuna Auction
    0 Bids
    Starting Bid
    $200
  • 17.71-Carat Brazilian Emerald, GIA Certified
    Estimate
    $40,000 - $50,000

    17.71-Carat Brazilian Emerald, GIA Certified

    Est.
    $40,000 - $50,000
    Fortuna Auction
    0 Bids
    Starting Bid
    $33,000
  • 96.10-Carat Oval Ametrine Cabochon
    Estimate
    $250 - $375

    96.10-Carat Oval Ametrine Cabochon

    Est.
    $250 - $375
    Fortuna Auction
    0 Bids
    Starting Bid
    $225
  • 12.60-Carat Pear Shape Opal Cabochons
    Estimate
    $300 - $700

    12.60-Carat Pear Shape Opal Cabochons

    Est.
    $300 - $700
    Fortuna Auction
    0 Bids
    Starting Bid
    $275
  • Loose Diamonds
    Estimate
    $100 - $200

    Loose Diamonds

    Est.
    $100 - $200
    Kodner Galleries
    0 Bids
    Starting Bid
    $50
  • UNUSUAL ARTISAN STERLING KINETIC SILVER & GEMSTONE SLIDING CAR CUFF BRACELET
    Estimate
    $300 - $400

    UNUSUAL ARTISAN STERLING KINETIC SILVER & GEMSTONE SLIDING CAR CUFF BRACELET

    Est.
    $300 - $400
    Austin Auction Gallery
    3 Bids
    Current Bid
    $250
  • SOUTHWEST SILVER FILIGREE & VARIEGATED GEMSTONE HEART-FORM PENDANT
    Estimate
    $100 - $200

    SOUTHWEST SILVER FILIGREE & VARIEGATED GEMSTONE HEART-FORM PENDANT

    Est.
    $100 - $200
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $80
  • Diamond and Multicolor Gemstone Pendant Necklace
    Estimate
    $1,100 - $1,700

    Diamond and Multicolor Gemstone Pendant Necklace

    Est.
    $1,100 - $1,700
    Fortuna Auction
    0 Bids
    Starting Bid
    $800
  • (2) DAVID YURMAN STERLING, DIAMOND, & GEMSTONE CABLE BRACELETS
    Estimate
    $300 - $600

    (2) DAVID YURMAN STERLING, DIAMOND, & GEMSTONE CABLE BRACELETS

    Est.
    $300 - $600
    Austin Auction Gallery
    2 Bids
    Current Bid
    $225
  • WILSON PADILLA NAVAJO STERLING SILVER & WHITE GEMSTONE CUFF BRACELET
    Estimate
    $300 - $600

    WILSON PADILLA NAVAJO STERLING SILVER & WHITE GEMSTONE CUFF BRACELET

    Est.
    $300 - $600
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $150
  • (2) NATIVE AMERICAN SILVER & GEMSTONE RINGS, ANNY LOCASPINO & OTHER
    Estimate
    $200 - $400

    (2) NATIVE AMERICAN SILVER & GEMSTONE RINGS, ANNY LOCASPINO & OTHER

    Est.
    $200 - $400
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $150
  • (4) NATIVE AMERICAN & SOUTHWEST STYLE SILVER & GEMSTONE PENDANTS
    Estimate
    $150 - $300

    (4) NATIVE AMERICAN & SOUTHWEST STYLE SILVER & GEMSTONE PENDANTS

    Est.
    $150 - $300
    Austin Auction Gallery
    1 Bid
    Current Bid
    $100
  • (6) NATIVE AMERICAN SILVER & GEMSTONE EARRINGS & INLAID PENDANT
    Estimate
    $100 - $200

    (6) NATIVE AMERICAN SILVER & GEMSTONE EARRINGS & INLAID PENDANT

    Est.
    $100 - $200
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $80
  • (10) CORTES COMPANY SILVERPLATE & PINK GEMSTONE HORSE SHOW CONCHOS
    Estimate
    $200 - $400

    (10) CORTES COMPANY SILVERPLATE & PINK GEMSTONE HORSE SHOW CONCHOS

    Est.
    $200 - $400
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $150
  • (2) NATIVE AMERICAN STERLING & WHITE GEMSTONE RINGS, RAMONA LOLOMA & OTHER
    Estimate
    $200 - $400

    (2) NATIVE AMERICAN STERLING & WHITE GEMSTONE RINGS, RAMONA LOLOMA & OTHER

    Est.
    $200 - $400
    Austin Auction Gallery
    2 Bids
    Current Bid
    $175
  • Silver, Pearl, and Multicolor Gemstone Pendant - No Reserve Lot
    Estimate
    $300 - $600

    Silver, Pearl, and Multicolor Gemstone Pendant - No Reserve Lot

    Est.
    $300 - $600
    Fortuna Auction
    0 Bids
    Starting Bid
    $50
  • (3) BARBARA BIXBY 'LOTUS' STERLING, 18K YELLOW GOLD, & GEMSTONE RINGS
    Estimate
    $200 - $400

    (3) BARBARA BIXBY 'LOTUS' STERLING, 18K YELLOW GOLD, & GEMSTONE RINGS

    Est.
    $200 - $400
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $150
  • IMPRESSIVE TIM GUERRO (NAVAJO, 20TH C.) STERLING & WHITE GEMSTONE CONCHO NECKLACE
    Estimate
    $600 - $1,200

    IMPRESSIVE TIM GUERRO (NAVAJO, 20TH C.) STERLING & WHITE GEMSTONE CONCHO NECKLACE

    Est.
    $600 - $1,200
    Austin Auction Gallery
    1 Bid
    Current Bid
    $400
  • (9) MODERNIST MEXICO STERLING SILVER & GEMSTONE JEWELRY, COLLARS & EARRINGS
    Estimate
    $150 - $250

    (9) MODERNIST MEXICO STERLING SILVER & GEMSTONE JEWELRY, COLLARS & EARRINGS

    Est.
    $150 - $250
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $100
  • (2) RAMONA LOLOMA (HOPI, 20TH C.) STERLING & WHITE GEMSTONE RING & EARRINGS
    Estimate
    $300 - $600

    (2) RAMONA LOLOMA (HOPI, 20TH C.) STERLING & WHITE GEMSTONE RING & EARRINGS

    Est.
    $300 - $600
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $150
  • THOMAS FRANCISCO NAVAJO STERLING SILVER & WHITE GEMSTONE WATCH CUFF
    Estimate
    $150 - $350

    THOMAS FRANCISCO NAVAJO STERLING SILVER & WHITE GEMSTONE WATCH CUFF

    Est.
    $150 - $350
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $100
  • (2) WILLIAM J. JOHNSON NAVAJO & SOUTHWEST STERLING GEMSTONE RINGS
    Estimate
    $150 - $350

    (2) WILLIAM J. JOHNSON NAVAJO & SOUTHWEST STERLING GEMSTONE RINGS

    Est.
    $150 - $350
    Austin Auction Gallery
    0 Bids
    Starting Bid
    $100
  • 7.46 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $18,900 - $25,300

    7.46 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $18,900 - $25,300
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $13,000
    Buy Now Price
    $17,000
  • 7.42 carat diamond pair, Radiant cut Diamonds IGI Graded
    Estimate
    $14,900 - $20,000

    7.42 carat diamond pair, Radiant cut Diamonds IGI Graded

    Est.
    $14,900 - $20,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $10,000
    Buy Now Price
    $14,000
  • 4.04 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $3,800 - $5,100

    4.04 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $3,800 - $5,100
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 8.06 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $7,300 - $9,800

    8.06 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $7,300 - $9,800
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $5,000
    Buy Now Price
    $7,000
  • 15.22 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $16,500 - $22,100

    15.22 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $16,500 - $22,100
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $12,000
    Buy Now Price
    $16,000
  • 8.51 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $7,200 - $9,700

    8.51 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $7,200 - $9,700
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $5,000
    Buy Now Price
    $7,000
  • 9.37 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $3,400 - $4,700

    9.37 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $3,400 - $4,700
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,400
    Buy Now Price
    $3,200
  • 12.07 carat diamond pair, Round cut Diamonds IGI Graded
    Estimate
    $5,600 - $7,600

    12.07 carat diamond pair, Round cut Diamonds IGI Graded

    Est.
    $5,600 - $7,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $3,800
    Buy Now Price
    $5,000
  • 7.76 carat diamond pair, Oval cut Diamonds IGI Graded
    Estimate
    $3,600 - $4,900

    7.76 carat diamond pair, Oval cut Diamonds IGI Graded

    Est.
    $3,600 - $4,900
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400
  • 7.22 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $6,300 - $8,600

    7.22 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $6,300 - $8,600
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $4,400
    Buy Now Price
    $6,000
  • 8.69 carat diamond pair, Pear cut Diamonds IGI Graded
    Estimate
    $3,700 - $5,000

    8.69 carat diamond pair, Pear cut Diamonds IGI Graded

    Est.
    $3,700 - $5,000
    Lab Grown Auctions
    0 Bids
    Starting Bid
    $2,600
    Buy Now Price
    $3,400

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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