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Fine Jewelry University Articles matching: “trellis cathedral setting”

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Gem in the Spotlight: Opal

FJU Category: Gemstones | Tags: Folklore, Gem Spotlight, Gemology, Opal

…. To keep opal at its luminous best, wiping it clean with a soft cloth is recommended. Avoid the use of home ultrasonic machines or abrasive jewelry cleaners that could potentially damage the stone’s surface. For more valuable stones, setting them in a pendant or earrings instead of a ring will help them last as long as possible. With proper care opals can last for generations. Opals have very high water content, typically hovering around the 5-10% mark. As opals dry out …