Pearls
Helmi, İnci, Mutiara, Ngoc trai, Parel, Perla, Perła, Perlas, Perle, Pérola, لؤلؤ, 真珠, 진주, Жемчуг, ไข่มุก, 珍珠
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Compound: 84-92% CaCO3, 4-13% organische Substanz, 3-4% H2O
Mineral class: carbonates Crystal system: - Mohs scale: 3 - 4 Density (g/cm3): 2.65 - 2.78 Refractive index: 1.53 - 1.69 Colors: white-silver, rose, greenish, blueish, black Fluorescence: slight Pleochroism: - Largest Pearl: 450 ct. Deposits: Persian Gulf, Southeast Asia, India, Sri Lanka, Australia, Central America |
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Abalone Pearl
Weight: 16.04 ct Size: 2.53 x 1.43 x 1.01 cm Origin: USA Photo by kind permission of © www.multicolour.com |
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Akoya Pearl faceted
Size: 1.5 cm Weight: 24.13 ct Artist: Kazuhito Komatsu Photo: Jason Stephenson, by kind permission of © www.palagems.com |
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Conch Pearl
Size: 1.23 x 0.99 x 0.67 cm Weight: 6.41 ct Origin: Caribbean Sea Photo by kind permission of © www.ajsgems.com |
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Freshwater Pearl Necklace
Pearls: 42; 1.05 x 0.95 cm each Length: 41 cm Gold: 14K White gold Photo by kind permission of © www.davidwein.com |
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Freshwater Pearl Ring
Pearls: 1.2 cm Diamonds: 82; total 0.57 ct Gold: 14K White Gold Photo by kind permission of © www.davidwein.com |
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Freshwater Pearl Necklace
Pearls: 44; 1.0 x 0.95 cm each Length: 40.6 cm Silver: 925/1000 Photo by kind permission of © www.davidwein.com |
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Freshwater Pearl "Fancy"
Weight: 46.30 ct Origin: China Photo by kind permission of © www.multicolour.com |
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Melo Pearl
Size: 2.07 x 1.95 x 1.94 cm Weight: 58.1 ct Origin: Vietnam Photo by kind permission of © www.ajsgems.com |
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Melo Pearl
Weight: 10.28 ct Origin: Mergui Archipelago / Myanmar Photo by kind permission of © www.americanthai.com |
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Scallop Pearl (Lion's Paw Scallop)
Size: 1.02 x 0.88 cm Weight: 5.90 ct Origin: Baja California / USA Photo: Jason Stephenson, by kind permission of © www.palagems.com |
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South Sea Pearl faceted
Size: 1.6 cm Weight: 30.04 ct Artist: Kazuhito Komatsu Photo: Jason Stephenson, by kind permission of © www.palagems.com |
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South Sea Pearl
Origin: South Sea, Red Sea, Philippines, Polynesia, Myanmar, Thailand, Australia Photo by kind permission of © www.perlen-info.de |
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Tahiti Pearl faceted
Size: 1.45 cm Weight: 22.56 ct Artist: Kazuhito Komatsu Photo: Jason Stephenson, by kind permission of © www.palagems.com |
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Tahiti Pearl Necklace
Pearls: 33; total 425.75 ct; 1.15 x 1.15 cm each; Tuamotu Archipelago / French Polynesia Length: 43.5 cm Gold: 14K White gold Photo by kind permission of © www.davidwein.com |
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Tahiti Pearl Pendant
Pearl: 1.3 cm Diamonds: total 0.26 ct Gold: 18K Photo by kind permission of © www.collectorfinejewelry.com |
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