Loose Diamonds & Gemstones Auctions

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  • 18 TOPACIOS SIN MONTAR distintos cortes ~32.60 ct
    Estimate
    MXN$6,000 - MXN$9,000 $331 - $496

    18 TOPACIOS SIN MONTAR distintos cortes ~32.60 ct

    Est.
    MXN$6,000 - MXN$9,000 $331 - $496
    Morton Subastas Live Now
    1 Bid
    Current Bid
    MXN$5,000$276
  • 55 TURMALINAS SIN MONTAR distintos cortes ~60.86 ct
    Estimate
    MXN$6,000 - MXN$7,000 $331 - $386

    55 TURMALINAS SIN MONTAR distintos cortes ~60.86 ct

    Est.
    MXN$6,000 - MXN$7,000 $331 - $386
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$5,000$276
  • DIAMANTE CERTIFICADO GIA SIN MONTAR corte brillante ~1.02 ct Claridad: VS2 Color: M
    Estimate
    MXN$47,000 - MXN$50,000 $2,591 - $2,756

    DIAMANTE CERTIFICADO GIA SIN MONTAR corte brillante ~1....

    Est.
    MXN$47,000 - MXN$50,000 $2,591 - $2,756
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$45,000$2,481
  • 26 ÓPALOS SIN MONTAR distintos cortes ~64.94 ct
    Estimate
    MXN$6,000 - MXN$7,000 $331 - $386

    26 ÓPALOS SIN MONTAR distintos cortes ~64.94 ct

    Est.
    MXN$6,000 - MXN$7,000 $331 - $386
    Morton Subastas Live Now
    1 Bid
    Current Bid
    MXN$5,000$276
  • 77 TOPACIOS SIN MONTAR distintos cortes ~82.6 ct
    Estimate
    MXN$6,000 - MXN$7,000 $331 - $386

    77 TOPACIOS SIN MONTAR distintos cortes ~82.6 ct

    Est.
    MXN$6,000 - MXN$7,000 $331 - $386
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$5,000$276
  • PAR DE BROQUELES CON TOPACIOS EN ORO BLANCO DE 14K. Topacios corte corazón ~4.0 ct
    Estimate
    MXN$6,000 - MXN$7,000 $331 - $386

    PAR DE BROQUELES CON TOPACIOS EN ORO BLANCO DE 14K. Top...

    Est.
    MXN$6,000 - MXN$7,000 $331 - $386
  • 18 AGUAMARINAS SIN MONTAR distintos cortes ~40.45 ct
    Estimate
    MXN$11,000 - MXN$13,000 $606 - $717

    18 AGUAMARINAS SIN MONTAR distintos cortes ~40.45 ct

    Est.
    MXN$11,000 - MXN$13,000 $606 - $717
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$10,000$551
  • 32 ZAFIROS Y RUBÍES SIN MONTAR corte cabujón ~22.97 ct
    Estimate
    MXN$6,000 - MXN$7,000 $331 - $386

    32 ZAFIROS Y RUBÍES SIN MONTAR corte cabujón ~22.97 ct

    Est.
    MXN$6,000 - MXN$7,000 $331 - $386
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$5,000$276
  • 24 DIAMANTES MULTICOLORES SIN MONTAR distintos cortes ~4.27 ct
    Estimate
    MXN$26,000 - MXN$28,000 $1,433 - $1,544

    24 DIAMANTES MULTICOLORES SIN MONTAR distintos cortes ~...

    Est.
    MXN$26,000 - MXN$28,000 $1,433 - $1,544
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$25,000$1,378
  • 15 AMATISTAS Y PRASIOLITAS SIN MONTAR distintos cortes ~186.55 ct
    Estimate
    MXN$6,000 - MXN$7,000 $331 - $386

    15 AMATISTAS Y PRASIOLITAS SIN MONTAR distintos cortes ...

    Est.
    MXN$6,000 - MXN$7,000 $331 - $386
    Morton Subastas Live Now
    0 Bids
    Starting Bid
    MXN$5,000$276
  • 3.54 ct, D/FL, Type IIa Pear cut GIA Graded Diamond. Appraised Value: $407,100
    Estimate
    $152,000 - $175,000

    3.54 ct, D/FL, Type IIa Pear cut GIA Graded Diamond. Ap...

    Est.
    $152,000 - $175,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $110,000
  • 2.54 ct, Natural Fancy Yellow Even Color, IF, Cushion cut Diamond (GIA Graded), Appraised Value: $63,900
    Estimate
    $22,000 - $26,000

    2.54 ct, Natural Fancy Yellow Even Color, IF, Cushion c...

    Est.
    $22,000 - $26,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $17,000
  • 3.52 ct, G/VVS1, Emerald cut GIA Graded Diamond. Appraised Value: $217,800
    Estimate
    $72,000 - $84,000

    3.52 ct, G/VVS1, Emerald cut GIA Graded Diamond. Apprai...

    Est.
    $72,000 - $84,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $55,000
  • 2.20 ct, D/VS1, Oval cut GIA Graded Diamond. Appraised Value: $94,000
    Estimate
    $28,000 - $33,000

    2.20 ct, D/VS1, Oval cut GIA Graded Diamond. Appraised ...

    Est.
    $28,000 - $33,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $22,000
  • 2.09 ct, F/IF, Pear cut GIA Graded Diamond. Appraised Value: $96,400
    Estimate
    $44,000 - $52,000

    2.09 ct, F/IF, Pear cut GIA Graded Diamond. Appraised V...

    Est.
    $44,000 - $52,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $32,000
  • 4.02 carat diamond pair, Oval cut Diamonds GIA Graded 1) 2.01 ct, Color E, VS1 2) 2.01 ct, Color D, VS2. Appraised Value: $160,500
    Estimate
    $56,000 - $66,000

    4.02 carat diamond pair, Oval cut Diamonds GIA Graded 1...

    Est.
    $56,000 - $66,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $42,000
  • 2.08 ct, Natural Fancy Brown Yellow Even Color, VVS1, Type IIa Pear cut Diamond (GIA Graded), Appraised Value: $33,200
    Estimate
    $11,000 - $14,000

    2.08 ct, Natural Fancy Brown Yellow Even Color, VVS1, T...

    Est.
    $11,000 - $14,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $8,500
  • 2.00 ct, D/VS1, Oval cut GIA Graded Diamond. Appraised Value: $85,500
    Estimate
    $24,000 - $29,000

    2.00 ct, D/VS1, Oval cut GIA Graded Diamond. Appraised ...

    Est.
    $24,000 - $29,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $18,000
  • 6.02 carat diamond pair, Oval cut Diamonds GIA Graded 1) 3.01 ct, Color H, VS2 2) 3.01 ct, Color I, VS2. Appraised Value: $226,800
    Estimate
    $97,000 - $111,000

    6.02 carat diamond pair, Oval cut Diamonds GIA Graded 1...

    Est.
    $97,000 - $111,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $70,000
  • 2.00 ct, E/VS1, Princess cut GIA Graded Diamond. Appraised Value: $81,000
    Estimate
    $20,000 - $24,000

    2.00 ct, E/VS1, Princess cut GIA Graded Diamond. Apprai...

    Est.
    $20,000 - $24,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $15,000
  • 2.20 ct, F/VS1, Pear cut GIA Graded Diamond. Appraised Value: $84,100
    Estimate
    $38,000 - $45,000

    2.20 ct, F/VS1, Pear cut GIA Graded Diamond. Appraised ...

    Est.
    $38,000 - $45,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $28,000
  • 2.01 ct, H/VS1, Emerald cut GIA Graded Diamond. Appraised Value: $58,700
    Estimate
    $21,000 - $25,000

    2.01 ct, H/VS1, Emerald cut GIA Graded Diamond. Apprais...

    Est.
    $21,000 - $25,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $16,000
  • 2.01 ct, G/VVS1, Radiant cut GIA Graded Diamond. Appraised Value: $79,100
    Estimate
    $23,000 - $28,000

    2.01 ct, G/VVS1, Radiant cut GIA Graded Diamond. Apprai...

    Est.
    $23,000 - $28,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $18,000
  • 3.05 ct, F/VS1, Marquise cut GIA Graded Diamond. Appraised Value: $171,500
    Estimate
    $62,000 - $72,000

    3.05 ct, F/VS1, Marquise cut GIA Graded Diamond. Apprai...

    Est.
    $62,000 - $72,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $46,000
  • 2.01 ct, F/VS1, Princess cut GIA Graded Diamond. Appraised Value: $76,800
    Estimate
    $21,000 - $25,000

    2.01 ct, F/VS1, Princess cut GIA Graded Diamond. Apprai...

    Est.
    $21,000 - $25,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $16,000
  • 5.11 ct, Natural Fancy Light Yellow Even Color, VS1, Cushion cut Diamond (GIA Graded), Appraised Value: $137,900
    Estimate
    $48,000 - $56,000

    5.11 ct, Natural Fancy Light Yellow Even Color, VS1, Cu...

    Est.
    $48,000 - $56,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $36,000
  • 3.02 ct, E/VS1, Square Emerald cut GIA Graded Diamond. Appraised Value: $190,200
    Estimate
    $54,000 - $62,000

    3.02 ct, E/VS1, Square Emerald cut GIA Graded Diamond. ...

    Est.
    $54,000 - $62,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $40,000
  • 2.00 ct, H/VS1, Round cut GIA Graded Diamond. Appraised Value: $72,000
    Estimate
    $22,000 - $27,000

    2.00 ct, H/VS1, Round cut GIA Graded Diamond. Appraised...

    Est.
    $22,000 - $27,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $17,000
  • 5.04 ct, F/VS1, Princess cut GIA Graded Diamond. Appraised Value: $648,900
    Estimate
    $161,000 - $185,000

    5.04 ct, F/VS1, Princess cut GIA Graded Diamond. Apprai...

    Est.
    $161,000 - $185,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $120,000
  • 2.01 ct, F/VS1, Emerald cut GIA Graded Diamond. Appraised Value: $76,800
    Estimate
    $25,000 - $29,000

    2.01 ct, F/VS1, Emerald cut GIA Graded Diamond. Apprais...

    Est.
    $25,000 - $29,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $18,000
  • 4.27 ct, G/VS1, Square Emerald cut GIA Graded Diamond. Appraised Value: $330,900
    Estimate
    $93,000 - $107,000

    4.27 ct, G/VS1, Square Emerald cut GIA Graded Diamond. ...

    Est.
    $93,000 - $107,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $70,000
  • 4.83 carat diamond pair, Round cut Diamonds GIA Graded 1) 2.39 ct, Color D, FL 2) 2.44 ct, Color D, FL. Appraised Value: $525,200
    Estimate
    $205,000 - $235,000

    4.83 carat diamond pair, Round cut Diamonds GIA Graded ...

    Est.
    $205,000 - $235,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $150,000
  • 2.51 ct, F/VS1, Heart cut GIA Graded Diamond. Appraised Value: $96,000
    Estimate
    $44,000 - $52,000

    2.51 ct, F/VS1, Heart cut GIA Graded Diamond. Appraised...

    Est.
    $44,000 - $52,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $32,000
  • 3.01 ct, G/VVS1, Radiant cut GIA Graded Diamond. Appraised Value: $186,200
    Estimate
    $65,000 - $75,000

    3.01 ct, G/VVS1, Radiant cut GIA Graded Diamond. Apprai...

    Est.
    $65,000 - $75,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $48,000
  • 3.02 ct, D/FL, Type IIa Pear cut GIA Graded Diamond. Appraised Value: $347,300
    Estimate
    $112,000 - $129,000

    3.02 ct, D/FL, Type IIa Pear cut GIA Graded Diamond. Ap...

    Est.
    $112,000 - $129,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $85,000
  • 2.01 ct, F/VS1, Pear cut GIA Graded Diamond. Appraised Value: $76,800
    Estimate
    $31,000 - $37,000

    2.01 ct, F/VS1, Pear cut GIA Graded Diamond. Appraised ...

    Est.
    $31,000 - $37,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $24,000
  • 2.01 ct, E/VS1, Heart cut GIA Graded Diamond. Appraised Value: $81,400
    Estimate
    $31,000 - $37,000

    2.01 ct, E/VS1, Heart cut GIA Graded Diamond. Appraised...

    Est.
    $31,000 - $37,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $24,000
  • 3.05 ct, Natural Fancy Yellow Even Color, VVS2, Heart cut Diamond (GIA Graded), Appraised Value: $109,800
    Estimate
    $38,000 - $44,000

    3.05 ct, Natural Fancy Yellow Even Color, VVS2, Heart c...

    Est.
    $38,000 - $44,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $28,000
  • 20.03 ct, D/VS1, Type IIa Heart cut GIA Graded Diamond. Appraised Value: $5,918,800
    Estimate
    $1,842,000 - $2,106,000

    20.03 ct, D/VS1, Type IIa Heart cut GIA Graded Diamond....

    Est.
    $1,842,000 - $2,106,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $1,350,000
  • 2.40 ct, D/FL, Type IIa Pear cut GIA Graded Diamond. Appraised Value: $137,700
    Estimate
    $61,000 - $71,000

    2.40 ct, D/FL, Type IIa Pear cut GIA Graded Diamond. Ap...

    Est.
    $61,000 - $71,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $46,000
  • 5.01 ct, G/VS1, Round cut GIA Graded Diamond. Appraised Value: $607,400
    Estimate
    $200,000 - $229,000

    5.01 ct, G/VS1, Round cut GIA Graded Diamond. Appraised...

    Est.
    $200,000 - $229,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $150,000
  • 2.00 ct, Natural Fancy Light Yellow Even Color, VVS1, Cushion cut Diamond (GIA Graded), Appraised Value: $31,100
    Estimate
    $10,000 - $13,000

    2.00 ct, Natural Fancy Light Yellow Even Color, VVS1, C...

    Est.
    $10,000 - $13,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $8,000
  • 3.00 ct, G/IF, Round cut GIA Graded Diamond. Appraised Value: $292,500
    Estimate
    $82,000 - $94,000

    3.00 ct, G/IF, Round cut GIA Graded Diamond. Appraised ...

    Est.
    $82,000 - $94,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $60,000
  • 2.01 ct, D/VVS2, Princess cut GIA Graded Diamond. Appraised Value: $94,900
    Estimate
    $26,000 - $31,000

    2.01 ct, D/VVS2, Princess cut GIA Graded Diamond. Appra...

    Est.
    $26,000 - $31,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $20,000
  • 2.20 ct, Natural Fancy Yellow Even Color, VVS2, Radiant cut Diamond (GIA Graded), Appraised Value: $61,800
    Estimate
    $21,000 - $25,000

    2.20 ct, Natural Fancy Yellow Even Color, VVS2, Radiant...

    Est.
    $21,000 - $25,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $16,000
  • 3.34 ct, F/VS2, Round cut GIA Graded Diamond. Appraised Value: $214,100
    Estimate
    $77,000 - $89,000

    3.34 ct, F/VS2, Round cut GIA Graded Diamond. Appraised...

    Est.
    $77,000 - $89,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $60,000
  • 3.29 ct, D/FL, Oval cut GIA Graded Diamond. Appraised Value: $378,300
    Estimate
    $113,000 - $130,000

    3.29 ct, D/FL, Oval cut GIA Graded Diamond. Appraised V...

    Est.
    $113,000 - $130,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $85,000
  • 4.00 carat diamond pair, Princess cut Diamonds GIA Graded 1) 2.00 ct, Color G, VS1 2) 2.00 ct, Color G, VS1. Appraised Value: $139,400
    Estimate
    $39,000 - $46,000

    4.00 carat diamond pair, Princess cut Diamonds GIA Grad...

    Est.
    $39,000 - $46,000
    Bid Global International Au...
    0 Bids
    Starting Bid
    $30,000

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.