These things are all over the place - red coral. I've seen them as strands and strands and strands of beads, a single "branch" as a pendant, and in more artistic, sculptured pieces.

The Reef Necklace from Lilia Jewelry is my favorite so far. It has enough of the coral pieces to be noticed, and yet isn't as heavy as wearing a whole mass of bedas on strands. The necklace is a double strand of the coral on gold filled chain and is $150. I can totally picture it with an all white outfit and red strappy sandals.