Tag Archives: diamond

Emeralds

Emerald is one of the earliest known coloured gemstones, having been prized since antiquity. Its name comes from the Greek word “Smaragdus” which means green. The earliest known emerald mines were in Egypt, about 3000BC, from a location near the Red Sea that would later be known as “Cleopatra’s mines”. Cleopatra was known to have […]

Diamond identification

Sometimes we get asked by a customer if the stone that they found tucked at the bottom of their jewellery box is a real diamond or not. One very quick way to rule out many fakes is to try the newspaper test. Diamonds are highly dispersive, and have a high refractive index. This means that […]