Natural Ruby 0.15ct Oval Heated Siam

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A natural oval-cut ruby from Siam (Thailand), weighing 0.15 carats and measuring 4x2.8mm. The small oval faceted outline shows a deep red body color characteristic of heated Thai m aterial - a slightly garnet-modified red that is a recognized signature of Siamese ruby. Transparent with SI clarity, the color is vivid and well-saturated for a stone of this small size, and shows confidently through the polished oval face. Siam is the historical designation for Thailand, used in gemological documentation to identify Thai-origin ruby. Thailand's Chanthaburi and Kanchanaburi provinces were historically significant ruby mining regions, known for producing material with a deep, distinctively darker red compared to the brighter pinkish-reds of some African origins. At 4x2.8mm and 0.15ct, this is a small accent stone suited for micro-setting positions, delicate accent work, and collectors interested in labeled historic-origin ruby. Stone type: Natural Ruby Weight: 0.15ct Size: 4x2.8mm Color: Deep red Cut: Oval faceted Clarity: SI Treatment: Heated Origin: Siam (Thailand) Hardness: 9 Natural Siam ruby, heated, July birthstone - sold loose. Show more