Results in GIA Loose Gemstones

1-25 of 234

  • Australian 18x13x4mm Natural Black Triplet Opal Stone For Ring Pendant Bracelet

    Australian 18x13x4mm Natural Black Triplet Opal Stone For Ring Pendant Bracelet

    · Gem: Two Pair Of Natural Black Triplet Opal Stones Gem Quality: A . Double your traffic. · Opal Size: 18x13x4 mm. ·Opal Weight: 13.245 cts & 2.649 g.
    AU $108.00
    Was: Previous priceAU $120.00
    Available for Best Offeror Best Offer
    Free postage
  • Lady Gift Natural Fashion Black Triplet Opal Earring With Sterling Solid Silver

    Lady Gift Natural Fashion Black Triplet Opal Earring With Sterling Solid Silver

    Triplets usually have a 'glassy' appearance and the light reflects differently from the top of the stone. You can look at the side of the stone to identify a straight line where all the layers meet, and also look at the back of the stone.
    AU $12.50
    7 bids
    Free postage
    Ending Today at 22:41 AEDST
  • Opal Natural Black Triplet Opal Necklace 6.165 cts Solid Silver Set

    Opal Natural Black Triplet Opal Necklace 6.165 cts Solid Silver Set

    Triplets usually have a 'glassy' appearance and the light reflects differently from the top of the stone. You can look at the side of the stone to identify a straight line where all the layers meet, and also look at the back of the stone.
    AU $8.50
    6 bids
    Free postage
    Ending Thursday at 22:19 AEDST
  • 1.69-Carat Cushion-Cut Unheated Padparadscha Sapphire (GIA-Certified)

    1.69-Carat Cushion-Cut Unheated Padparadscha Sapphire (GIA-Certified)

    Gemstone : Natural Padparadscha (Sapphire) Color : Intense Orange with a Slight Pinkish Hue. Shape: Cushion Remarks: Free GIA Certificate (See Below). Weight: 1.69 Carats Hardness: 9(Mohs Scale). Cutting: Faceted.
    AU $2,958.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 5.04-Carat VS-Clarity Unheated Cushion-Cut Sapphire from Ceylon (GIA-Certified)

    5.04-Carat VS-Clarity Unheated Cushion-Cut Sapphire from Ceylon (GIA-Certified)

    Shape: Cushion Remarks: Free GIA Certificate (See Below). Stone ID : A10933 Clarity: VS2, Near Loupe Clean. Gemstone : Natural Sapphire Color : Lustrous Violetish Blue. Weight: 5.04 Carats Hardness: 9(Mohs Scale).
    AU $9,526.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 5.64-Carat Unheated Oval-Cut Lustrous Yellow Sapphire from Ceylon (GIA)

    5.64-Carat Unheated Oval-Cut Lustrous Yellow Sapphire from Ceylon (GIA)

    Gemstone : Natural Sapphire Color : Lustrous Yellow. Shape: Oval Remarks: Free GIA Certificate (See Below). Pcs: 1 Origin: Ceylon (Sri Lanka). Weight: 5.64 Carats Hardness: 9(Mohs Scale). Cutting: Faceted.
    AU $4,935.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 6.45-Carat GIA-Certified Unheated Oval-Cut Yellow Sapphire from Sri Lanka

    6.45-Carat GIA-Certified Unheated Oval-Cut Yellow Sapphire from Sri Lanka

    Gemstone : Natural Sapphire Color : Lustrous Soft Yellow. Shape: Oval Remarks: Free GIA Certificate (See Below). Pcs: 1 Origin: Ceylon (Sri Lanka). Weight: 6.45 Carats Hardness: 9(Mohs Scale). Cutting: Faceted.
    AU $4,515.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 6.59-Carat GIA-Certified Unheated Oval-Cut Blue Sapphire from Sri Lanka

    6.59-Carat GIA-Certified Unheated Oval-Cut Blue Sapphire from Sri Lanka

    Gemstone : Natural Sapphire Color : Lustrous Blue with a Slight Greenish Hue. Shape: Oval Remarks: Free GIA Certificate (See Below). Pcs: 1 Origin: Ceylon (Sri Lanka). Weight: 6.59 Carats Hardness: 9(Mohs Scale).
    AU $8,072.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 5.24-Carat GIA-Certified Unheated Oval-Cut Light Yellow Sapphire from Sri Lanka

    5.24-Carat GIA-Certified Unheated Oval-Cut Light Yellow Sapphire from Sri Lanka

    Gemstone : Natural Sapphire Color : Light Yellow. Shape: Oval Remarks: Free GIA Certificate (See Below). Pcs: 1 Origin: Ceylon (Sri Lanka). Weight: 5.24 Carats Hardness: 9(Mohs Scale). Cutting: Faceted.
    AU $2,934.00
    From India
    Free postage
  • 6.58-Carat GIA-Certified Natural Fiery Intense Green Oval-Cut Alexandrite

    6.58-Carat GIA-Certified Natural Fiery Intense Green Oval-Cut Alexandrite

    Gemstone : Natural Alexandrite Color : Fiery Intense Green changing to Yellowish Brown. Shape: Oval Treatment: None (Natural & Untreated). Cutting: Faceted Remarks: Free GIA Certificate (See Below). Pcs: 1 Color Change %: 90% (Strong).
    AU $18,655.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • GIA Certified 19.85 CTW Natural Aquamarine Gemstone Octagonal Square Brilliant

    GIA Certified 19.85 CTW Natural Aquamarine Gemstone Octagonal Square Brilliant

    This is a 19.85 carat natural aquamarine gemstone. This aqua was certified by GIA. We are jewelers in Milwaukee Wisconsin. We would be happy to include a current market appraisal in addition to the GIA certification.
    AU $19,410.98
    From United States
    Available for Best Offeror Best Offer
    AU $18.41 postage
  • 4.20ct Natural Loose Purplish Red Garnet GIA Certified Round Pyrope VS1 No Heat

    4.20ct Natural Loose Purplish Red Garnet GIA Certified Round Pyrope VS1 No Heat

    Color: Purplish Red. Clarity: VS1. Polish: EX. Shape: Round. DIAMOND INFORMATION. Treatment: NO Heat NO Treat. Cut Grade: EX. The merchandise must precisely match product data records.
    AU $1,633.20
    From United States
    Available for Best Offeror Best Offer
    Free postage
  • Newest Gold Metal Men's Tie bar Australian's Natural Black Triplet Opal Stone

    Newest Gold Metal Men's Tie bar Australian's Natural Black Triplet Opal Stone

    Triplets usually have a 'glassy' appearance and the light reflects differently from the top of the stone. You can look at the side of the stone to identify a straight line where all the layers meet, and also look at the back of the stone.
    AU $44.99
    Was: Previous priceAU $49.99
    Free postage
    Only 1 left!Only 1 left!
  • 5.52-Carat GIA-Certified Unheated Oval-Cut Yellow Sapphire from Sri Lanka

    5.52-Carat GIA-Certified Unheated Oval-Cut Yellow Sapphire from Sri Lanka

    Gemstone : Natural Sapphire Color : Lustrous Soft Yellow. Shape: Oval Remarks: Free GIA Certificate (See Below). Pcs: 1 Origin: Ceylon (Sri Lanka). Weight: 5.52 Carats Hardness: 9(Mohs Scale). Cutting: Faceted.
    AU $6,762.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 1.46-Carat Eye-Clean Intense Royal Blue Sapphire from Ceylon (Unheated)

    1.46-Carat Eye-Clean Intense Royal Blue Sapphire from Ceylon (Unheated)

    Gemstone : Natural Sapphire Color : Intense Royal Blue (Slight Color Zoning). Weight: 1.46 Carats Hardness: 9(Mohs Scale). Shape: Rectangular Cushion Remarks: Free IGI Certificate (See Below). Pcs: 1 Origin: Ceylon (Sri Lanka).
    AU $2,785.00
    From India
    Free postage
  • 6.44-Carat Unique Unheated Cushion-Cut Bi-Colour Sapphire (GIA-Certified)

    6.44-Carat Unique Unheated Cushion-Cut Bi-Colour Sapphire (GIA-Certified)

    Gemstone : Natural Sapphire Color : Blue & Green (Bi-Colour). Shape: Cushion Remarks: Free GIA Certificate (See Below). Stone ID : A10932 Clarity: SI2, Near Eye-Clean. Weight: 6.44 Carats Hardness: 9(Mohs Scale).
    AU $6,762.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 7.81-Carat Lovely Octagon-Cut Lustrous Yellow Sapphire from Sri Lanka (GIA)

    7.81-Carat Lovely Octagon-Cut Lustrous Yellow Sapphire from Sri Lanka (GIA)

    Gemstone : Natural Sapphire Color : Lustrous Yellow. Pcs: 1 Origin: Ceylon (Sri Lanka). Stone ID : A10143 Clarity: VS2, Near Loupe Clean. Weight: 7.81 Carats Hardness: 9 (Mohs Scale). Cutting: Faceted.
    AU $10,934.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 3.07-Carat VS-Clarity Lustrous Pastel Blue Round-Cut Sapphire (GIA-Certified)

    3.07-Carat VS-Clarity Lustrous Pastel Blue Round-Cut Sapphire (GIA-Certified)

    Shape: Round Remarks: Free GIA Certificate (See Below). Stone ID : A10642 Clarity: VS1, Near Loupe Clean. Weight: 3.07 Carats Hardness: 9(Mohs Scale). Clarity Scale. VS: Very Slight Inclusions. Cutting: Faceted.
    AU $3,760.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • Newest Gold Metal Men's Tie bar Australian's Natural Black Triplet Opal Stone

    Newest Gold Metal Men's Tie bar Australian's Natural Black Triplet Opal Stone

    Triplets usually have a 'glassy' appearance and the light reflects differently from the top of the stone. You can look at the side of the stone to identify a straight line where all the layers meet, and also look at the back of the stone.
    AU $44.99
    Was: Previous priceAU $49.99
    Free postage
  • Lady Gift Natural Fashion Black Triplet Opal Earring With Sterling Solid Silver

    Lady Gift Natural Fashion Black Triplet Opal Earring With Sterling Solid Silver

    Triplets usually have a 'glassy' appearance and the light reflects differently from the top of the stone. You can look at the side of the stone to identify a straight line where all the layers meet, and also look at the back of the stone.
    AU $7.55
    9 bids
    Free postage
    Ending Friday at 18:20 AEDST
  • GIA CERTIFIED with Origin 2.40 Cts Untreated Red Star Ruby Round Cabochon

    GIA CERTIFIED with Origin 2.40 Cts Untreated Red Star Ruby Round Cabochon

    Shape Round Cabochon. Gemstone Star Ruby. Color Red. Enlarge picture taken from genuine stone on sale. Color may not appear as exactly as in real life due to variations between the computer monitors.
    AU $4,411.50
    From Germany
    Was: Previous priceAU $5,190.00
    Available for Best Offeror Best Offer
    AU $12.00 postage
  • 3.66-Carat Unheated Transparent Deep Blue Ceylon Star Sapphire (GIA-Certified)

    3.66-Carat Unheated Transparent Deep Blue Ceylon Star Sapphire (GIA-Certified)

    Gemstone : Natural Star Sapphire Star Sharpness : Super Sharp 6-Ray Star. Pcs: 1 Color : Deep Blue. Weight: 3.66 Carats Origin: Ceylon (Sri Lanka). Cutting: Cabochon Remarks: Free GIA Certificate (See Below).
    AU $4,612.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 2.62-Carat GIA-Certified Unheated Cushion-Cut Ceylonese Padparadscha Sapphire

    2.62-Carat GIA-Certified Unheated Cushion-Cut Ceylonese Padparadscha Sapphire

    Gemstone : Natural Padparadscha (Sapphire) Color : Very Light Orangish Pink. Shape: Cushion Remarks: Free GIA Certificate (See Below). Weight: 2.62 Carats Hardness: 9(Mohs Scale). Cutting: Faceted. The certificate clearly mentions the carat weight, measurements, etc along with the confirmation that the gemstone is unheated / untreated.
    AU $3,485.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 4.53-Carat Rare Flawless Natural Yellow Green Alexandrite (GIA-Certified)

    4.53-Carat Rare Flawless Natural Yellow Green Alexandrite (GIA-Certified)

    Gemstone : Natural Alexandrite Color : Yellow Green changing to Brownish Yellow. Exotic Gemstones.All Natural & Untreated. Stone ID : A12190 Clarity: IF, Flawless. Shape: Oval Treatment: None (Natural & Untreated).
    AU $9,513.00
    From India
    Available for Best Offeror Best Offer
    Free postage
  • 8.47-Carat Unheated Oval-Cut Lustrous Yellow Sapphire (GIA-Certified)

    8.47-Carat Unheated Oval-Cut Lustrous Yellow Sapphire (GIA-Certified)

    Gemstone : Natural Sapphire Color : Lustrous Yellow. Shape: Oval Remarks: Free GIA Certificate (See Below). Weight: 8.47 Carats Hardness: 9(Mohs Scale). Cutting: Faceted. The certificate clearly mentions the carat weight, measurements, etc along with the confirmation that the gemstone is unheated / untreated.
    AU $8,894.00
    From India
    Available for Best Offeror Best Offer
    Free postage

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