This heart shaped Lampwork bead is made by Amy Waldman, a Toronto Lampwork Bead Artist. I love her stuff and when I saw this, I couldn't resist it. It sat on my workbench for about a year before I finally figured out what I wanted to do with it.
The chain is a simple byzantine, sterling silver, 18532. The bead sizes are 6mm and 8mm round Swarovski.