1) 14K yellow gold ring featuring inlaid opal accented by two full cut diamonds, hallmarked Kabana, sz 6.75, 2) 14K yellow gold contemporary diamond ring comprised of 8 round diamonds, sz 8, 3) 14K yellow gold gentleman's Mason's ring engraved with synthetic ruby, sz 9.5, and 4) 10K yellow gold ring featuring a heart shaped amethyst embellished with a pair of diamonds, sz 7.25, 18.4 grams