1) 14K yellow gold vintage black onyx ring features central round diamond set in white gold diamond shape mounting, floral shoulder design with green gold flower and rose gold leaves, sz. 9, 2) 14K yellow gold ring features shell cameo depicting profile of lady wearing a diamond necklace, sz. 8; 3) 10K yellow gold reversible ring features black onyx inscribed "1941" in gold, milgrain edge, flips in mounting to cameo on other side, decorative mounting and shoulders, sz. 6.25, and 4) 10K yellow gold ring features navette shape black onyx with round diamond center, sz. 5, 13.0 grams tw