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Golconda Type IIA Chemically Pure GIA Certified 20 Carat Round Diamond

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  • GIA Certified 8 Carat Type IIA Golconda type Oval Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    An amazing This investment grade 8 carat GIA certified oval cut diamond ring that has D color, flawless clarity and gorgeous, lively brilliance! Oval cuts are one of the most fashio...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, White Diamond, Platinum

  • Golconda Type IIA GIA Certified 6 Carat D FLAWLESS Clarity
    By Antinori Fine Jewels
    Located in Rome, IT
    This extraordinary platinum ring is a masterpiece of jewelry, featuring a central diamond of exceptional beauty and value. The main diamond, a true rarity, is a 10-carat round brilli...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, White Diamond, 18k Gold

  • Type IIA Golconda Type GIA Certified 10 Carat Oval Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    Behold the pinnacle of luxury and sophistication – our extraordinary 10 carat oval diamond, a masterpiece of unparalleled beauty and refinement. Certified by the esteemed Gemological...
    Category

    2010s Unknown Modern Engagement Rings

    Materials

    Diamond, White Diamond, 18k Gold

  • Exceptional GIA Certified 8 Carat Type IIA Golconda type Oval Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    Introducing the epitome of luxury and sophistication: our Exceptional GIA Certified 8 Carat Type IIA Golconda Oval Diamond Ring. Crafted to perfection and certified by GIA, this rem...
    Category

    2010s Unknown Contemporary Engagement Rings

    Materials

    Diamond, Platinum

  • TYPE IIA Golconda type GIA Certified 12 Carat Oval Diamond Pave Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    An investment grade and finely cut oval diamond ring is offered by Antinori di Sanpietro ROMA. This 12 carat GIA Certified D Color Internally Flawless Clarity Oval cut diamond is set...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, White Diamond, Platinum

  • GIA Certified Golconda Type IIA 12 Carat Emerald Cut Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    GIA Certified Golconda Type IIA 12 Carat Emerald Cut Diamond Ring! 🌟 Step into a world of unparalleled rarity and elegance with our extrao...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, White Diamond, Emerald, Platinum

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  • GIA Certified Rare Emerald Cut Type IIA Golconda Diamond Ring 2.01ct D/Flawless
    Located in London, GB
    A stunning platinum emerald cut diamond ring. The diamond is set within a classic 4 claw setting and weighs 2.01ct, D colour and Flawless clarity. This spectacular emerald cut is certified as a Type 2a diamond...
    Category

    21st Century and Contemporary Engagement Rings

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  • Golconda Type IIa 2.36 Carat Diamond Flanked Solitaire Ring, circa 1950
    Located in London, GB
    Golconda type IIa diamond flanked solitaire ring. Set to centre with a Golconda type IIa octagonal emerald-cut diamond, D colour, VVS1 clarity, with a weight of 2.36 carats, in an open back claw setting, flanked by two tapered baguette cut diamonds in open back rubover settings with a combined approximate weight of 0.45 carats. The total approximate diamond weight is 2.81 carats, to an impressive flanked solitaire design featuring curving corner claws, a linear pierced gallery and angular open backholing, leading to raised shoulders and flowing through to a solid D-shape shank. Tested platinum, circa 1950, accompanied by Gemological Institute of America (GIA) report #2225798012. Diamonds are classified by scientists into two main types, depending on the presence of nitrogen in the diamond's chemical makeup. Type II diamonds contain little to no such impurities. This type is further subdivided into two groups, ‘a’ and ‘b’, both of which make up less than two percent of all gem quality diamonds. Type IIa diamonds are extremely rare, and the most pure of all diamonds, and consequently exhibit superior transparency. This type was first identified as coming out of India, namely the Golconda region. Some of the most famous diamonds in the world...
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    Vintage 1950s Engagement Rings

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    Diamond, Platinum

  • 2.55 Carat D IF Type IIA GIA Certified Diamond Platinum Engagement Ring
    By Rive Gauche Jewelry
    Located in New York, NY
    The perfect diamond, a round brilliant cut weighing 2.56 carats with the highest color and clarity grade of D and IF ( internally flawless) is set in a classic handmade platinum ring with 2 tapered baguettes on the top of the shanks. With the cut, polish and symmetry all having been graded as Excellent, the perfect brilliance, life and fire are assured to radiate from this gem. This diamond is accompanied by a report from the GIA and a separate report stating that this diamond belongs to the rarest type of pure diamonds...
    Category

    2010s American Solitaire Rings

    Materials

    Diamond, Platinum

  • Spectra Fine Jewelry, GIA Certified 3.20 Carat Round Diamond Engagement Ring
    By Spectra Fine Jewelry
    Located in New York, NY
    A beautiful solitaire ring comprising of a 3.20 carat round diamond of H color, SI2 clarity. Accompanied by a GIA certificate. Size 6. Can be resized. Platinum. Weight of the ring i...
    Category

    21st Century and Contemporary American Solitaire Rings

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    Diamond, Platinum

  • 4 Carat Round Solitare Diamond Engagement Ring GIA Certified Natural Diamond
    By Five Star Jewelry
    Located in Austin, TX
    This is the diamond ring of every girl’s dream! An elegant ring setting to match a show-stopping center stone. Because the setting is so beautifully simple you can partner it with an...
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    21st Century and Contemporary American Contemporary Solitaire Rings

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    Diamond, 14k Gold, Yellow Gold

  • 3 Carat Round Brilliant Diamond Solitaire Engagement Ring, GIA Certified
    Located in New York, NY
    Spectacular engagement ring crafted in Platinum, showcasing a GIA certified round brilliant cut diamond weighing 3.01 carats, I color, SI2 clarity, accented by two trapezoids diamond...
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    2010s American Contemporary Engagement Rings

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