We believe this is one piece of coral with a hole for the 14K yellow gold that makes it a ring. This ring can not be sized and is a small 5 1/4. It can be worn on any finger. The coral measures about 1" across X 1/2" H. It weighs 13.7 grams. There is a stable crack in the coral on the side that took us awhile to find. The ring is marked 14K. If you wear it on your pinky finger, you can really see how the coral goes all the way around. Coral and yellow gold complement each other. Stunning, simple ring with a bold look.