97. White Gold Ring, decorated with Diamonds and Star Sapphire (asterism)

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97. White Gold Ring, decorated with Diamonds and Star Sapphire (asterism)

Starting price:

EUR 600

Sold

EUR 600

14K white gold, 3 g, măsura 52, Austrian hallmark

Material / Carats

1 round star sapphire cabochon, gray-violet color, approx. 4.20 ct.; 4 round brilliant diamonds, color G-H, clarity VS2-I1, approx. 0.14 ct.

The Asterism Sapphire is a rare and captivating variety of sapphire that displays a star-like phenomenon on its surface when viewed under a direct light source. This optical effect, known as asterism, occurs due to the presence of rutile inclusions (a titanium dioxide mineral) that resemble a needle inside the sapphire. The rutile inclusions are arranged in such a way that, when the light hits the surface, it reflects back in the form of a star, often with four, six or even twelve rays, depending on the orientation and density of the inclusions.

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