Gem Stones - Precious and semi-precious
Sapphires and rubies belong to a mineral family called Corundum. A Corundum is made of 99.9% aluminium oxide and a few other minerals that gives them colour. In Rubies for example the red colour comes from chromium. The word ruby is “ruber” in Latin. A perfect Ruby, Sapphire or Emerald can be rarer than a diamond and cost more.
Blue Sapphire is another precious gemstone that is a variety of the mineral corundum. Sapphires are mostly blue in colour naturally. However, some fancy Sapphires come in a variety of colours and “parti sapphires” show two or more colours in the same stone.
Emerald is a variety of the mineral beryl. It is coloured green because of the trace elements of chromium and/or vanadium. Emeralds have inclusions and is a very fragile stone. However, a top quality, natural Columbian Emerald is worth more than a diamond.
All other gem stones such as garnets, tourmalines, morganites, cat’s eye, opals, alexandrite and including pearls fall into the category of semi-precious stones.
If coloured gemstones inspire you, explore our range of jewellery featuring the finest precious and semi-precious gemstones, ethically sourced from all around the world.