Figure 3. While not as large as some of the other colored stones used by Paula Crevoshay, the intense color and unique cut of the 2.77 ct Oregon sunstone makes this ring one of her favorite pieces. The center stone’s color is complemented by 3.24 carats of red spinel. Photo by Robert Weldon/GIA; courtesy of Paula Crevoshay.
Deep red sunstone from the Ponderosa mine is marketed as spinel red. Although it’s not as hard as spinel or ruby, this sunstone type has a vivid scarlet hue that can be equally lovely. – Bart Curren
Some sunstones are bicolored, which makes them ideal for free-style designer cuts (bottom). They might also be tricolored, like this lovely 32.80-ct. Oregon sunstone (top). The cut is a spectacular example of the sculptor’s artistry. – Tino Hammid (bottom); Maha Tannous, courtesy Dust Devil Mining Company, Beaver, Oregon (top)
These fine-quality gems display some of the sunstone colors found in the Plush, Oregon, mining area. – Jeff Scovil, courtesy Jeff Scovil
Discoveries of glittery sunstone rough led miners to establish claims in the US state of Oregon. – Robert Weldon, courtesy Sunstone Butte Mine
A suite of gem-quality sunstones from the Ponderosa mine in the US state of Oregon shows the range of colors found in that area. – Tino Hammid
The 2.39-ct. aventurescent sunstone (right) is from the state of Tamil Nadu, in southern India. It’s accompanied by a cat’s-eye moonstone from the same area (left). – Shane F. McClure
Copper inclusions create a schiller effect in this Oregon sunstone from the Ponderosa Mine. – Eric Welch, courtesy Desert Sun Mining & Gem Co., Inc.
John Dyerの27.47カラットの多色オレゴン産サンストーンは芸術作品の１つである。 写真：David Dyer、宝石提供：John Dyer & Co.
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