Semi-Precious - Amber Round Beads Amber is a yellow-orange brown colour and although thought of as a semi-precious gemstone its not actually derived from a mineral but fossilised from the ancient resin from trees. Like pearls amber is an organic gemstone that’s formed from a biological process and has taken millions of years to form. The resin produced by the trees is a strong scented sticky resin that would collect bits of bark, seeds and insects as it ran down the tree trunk. As the resin aged it became harder and darker and formed the amber we know today. Most commercial Amber comes form either the Baltic’s or the Dominican Republic.