Here's possibly the world's thinnest Rainbow Cal Silica cabochon. Maybe...? This material was cut the "wrong" way, so I cut it as narrow as the slab was thick. It's a cousin to this cabochon.

33mm x 7mm x 4.5mm.   Weight: 6.75 carats.

Every one of my cabochons is custom cut to take the best advantage of the particular slab from which it is fashioned. Colors may vary somewhat from what is pictured due to differences in computer monitors.

Click the image on the right to see the cabochon super-sized...

RCS013