1) Adornments 2) Agate and amethyst 3) All birthstones 4) Amethyst and tourmaline 5) Beauties 6) Beryl and garnet 7) Birthstones 8) Brilliants 9) Briolettes 10) Brooch inserts 11) Cabochons and peridots 12) Cameos and others 13) Cameos, sometimes 14) Cherished people 15) Cluster in a marquise 16) Crown inlays Found on https://www.crosswordclues.com/clue/gems
Gems, or precious stones, are sometimes found crystallized in regular shapes and with a natural polish, more commonly they are of irregular shapes and with a rough coat. Found on http://www.probertencyclopaedia.com/browse/HG.HTM