Engraved Semi-Precious Stones Size: 1.5"-2.5" , 2"-3", 3.5"-5.5" Semi-precious stones are highly polished stones, each one-of-a-kind and brilliantly colored. The vigorous polishing brings beautiful out veins, multicolor and the unique singularities in every stone. Most of them has been engraved the bless words, images or totems may called wish stones, lucky stones and power stones.