Presenting a custom Modernist natural Ruby 1.65 ctw cluster ring in 585 14K gold size 7.5 circa 1970 -1980.
This stunning one of a kind ring has design elements characteristic of the modernist brutalist movement; admired greatly by the steampunk crowd and there is a lot to admire in this ring. The design rises high above the finger - about .75" inches - and the natural Rubies (NOT lab created) are prong set high above the face and mounted in a textured openwork setting. The ring face is .875" x .875" and features eleven 3mm round faceted prong set Rubies. The face and band is 585 (14K) yellow Gold. The band has wide quadruple split shoulders and are joined toward the back where it joins and is squared off (flattened) for comfort. The ring is a size 7.5 and weighs 12.2 grams.
The Rubies have good transparency and are a beautiful combination of deep reds to med reds with a blueish hue. At 10x there are visible inclusions. When examined microscopically there are visible fingerprint inclusions, rutile spun silk and the surface is free of waxes and fillers. When exposed to short wave and long wave UV light the beads brightly fluoresces and the mineral inclusions are clearly visible. These are all signs of natural and untreated beads. What I don’t see is the curved striae seen in Lab grown Rubies. The Rubies are approximately 1.65ctw. This was computed while in their setting.
The ring is visibly hallmarked 585 for 585/1000 or 14K Gold. The hallmark is the Israeli Lyre with the number 4 on the top and 585 on the bottom. My understanding is the 4 stands for the gram weight range. Unfortunately I am unaware of the range it stands for. I do know the range of the number 3 stands for 5 to 10 grams.
This piece is in excellent vintage condition with no blemishes, missing stones or repairs. The piece is visibly hallmarked ‘585' for 585/1000 grade Gold or 14K Gold. JSP testing solution was used to verify all precious metals. A Presidium Gem tester was used to verify the gemstone. The gemstone was acetone tested for color fastness. This item was examined using ultraviolet light and a microscope.
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