gemstones Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. precious or semi-precious stones used in jewelry. Example Sentence I love wearing gemstones on my necklace. More Example Sentences Gemstones can be found in many colors. Synonyms jewels; gems; precious stones Antonyms fake stones; costume jewelry Hear It! Say It! Write It! gemstones Switch to cursive Start Share with your friends: