Presenting a very rare and desirable Stunning Art Deco natural Harlequin Mosaic Opal 10K Gold ring circa 1930 -1940s.
This stunning Art Deco ring features a prong set 25mm x 8mm natural Harlequin Mosaic Opal triplet in a 10K gold setting. The ring face measures 1" x .5" and has a solid .125" shank which continues .125" across the band. The ring is a size 7.5 and weighs 5 grams.
The triplet is a Checkerboard Harlequin, an exceptionally rare opal type showing regularly arranged square-shaped units of color. This triplet consists of a layer of precious Checkerboard Harlequin Opal, backed by a layer of ironstone, dark or black common opal (potch), onyx, or obsidian and topped with a domed cap of clear quartz.
This ring is in excellent vintage condition with no blemishes or repairs. It is visibly hallmarked 10K for 413 gold. There is also a unknown makers mark of “FK”. An Auracle Gold tester and JSP testing solution was used to verify the precious metals. This items was microscopically examined. A Presidium Duo gem tester was used to verify the gemstone.
A true Harlequin pattern is a repeating pattern of contracting diamonds or elongated squares. In the world of Opals, the Harlequin Opal is the one stone that collectors, opal lovers and miners all wish they could find. This is an extremely rare pattern. Some stones may contain just a small part of the opal in this pattern but the pattern needs to encase the whole stone not just one part in order to be called a true Harlequin Opal.
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