Fill a 3/8 in. brass compression cap with a thin, even layer of jewelry gel. Fill the cap with turquoise stone chips, and add another layer of gel. Let dry. Use strong craft glue (like E6000) to adhere a ring blank to the back of the cap and let dry.
Trick and Image Credit: http://www.studs-and-pearls.com/2013/02/diy-stone-cap-ring.html
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