12mm Oregon Sunstones with Schiller | Round Rose Cut Cabochon | 6 carats | OSR106
12mm Oregon Sunstones with Schiller | Round Rose Cut Cabochon | 6 carats | OSR106
Oregon Sunstone is one of the only gemstones with an exclusively American origin, mined from the volcanic basalt flows of Harney and Lake Counties in Oregon. A variety of andesine-labradorite feldspar, these stones form naturally in a range of colors driven by trace copper content — from near-colorless and pale yellow to warm peach and salmon tones. Their domestic provenance and limited supply make them a standout choice for designers seeking a genuinely rare, traceable gemstone with a compelling origin story.
This listing is for a stunning 12mm round sunstone from Oregon that contains an impressive amount of schiller and a high dome, making it perfect for bezel or prong setting. It would make a substantial feature stone in your designs.
DETAILS
Origin: Oregon, USA
Species: Feldspar
Variety: Oregon Sunstone (Andesine-Labradorite)
Cut: Rose Cut Round
Size: 12mm x 12mm x 7.5mm
Weight: 6 carats
Sold: Individually (multiple color options available)
Treatment: None
Hardness: 6 – 6.5 (Mohs)
Refractive Index: 1.559 – 1.568
Materials: Oregon Sunstone.
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