Measuring 10mm these round cabochons have a wonderful deep amber colour, with a variety of “objects” trapped in the amber causing interesting patterning. I have several of these stones, so the one you receive may have a slightly different colouration or pattern than shown. Amber is a fossilized tree resin of now-extinct conifer trees and ancient pine trees. It is an amorphous hydrocarbon and may contain particles of various foreign materials, trapped insects, and air bubbles. Amber is perhaps the oldest substance used for human adornment. OUR STONES ARE EASY TO BUY, BECAUSE EACH ONE COMES WITH A 100% GUARANTEE. PLEASE SEE OUR RETURN POLICY.