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Radiant Cut

A patented diamond cut, first created in 1977. The radiant cut is often referred to as a ‘cut cornered square (or rectangular) brilliant’. The shape consists of 70 facets and is a combination of the emerald and princess cut.

Rose Cut

A diamond cut used since the 16th century. Rose cuts have flat bottoms and pointed tops created from triangular facets, usually faceted out of slivers of diamond that would serve no other purpose.

Rose Gold

Pink coloured gold. The pink hue comes from the alloying metal which is copper or sometimes copper and silver.

Round Brilliant Cut

The standard modern round cut diamond, first invented in 1919. The stone has either 57 or 58 facets depending on whether it has a culet or not.

Rubover

A setting style. See bezel setting.

Ruby

A red gemstone and variety of the mineral corundum.  In ancient Sanskrit ruby is known as ‘ratnaraj’ meaning ‘the king of precious stones’. Throughout the ages ruby has been regarded as the stone of royalty and the upper classes. Its red colour makes it also the stone of love and passion. The famous Black Prince Ruby was discovered to be a Red Spinel by scientists in the 19th century. Today it sits in the British Imperial Crown, next to the Cullinan II diamond. Ruby is 9 on the Mohs scale. Read more