Late Deco Emerald And Diamond Bombe Style Cluster Ring, c.1940s
Calibrated gemstones are mass-produced and come in certain ‘calibrated sizes’, for standard mass produced gemstone settings. If a gemstone does not fit a standard mount, one will need to be custom made.
A metal prized for its rarity, whiteness, high tensile strength and insusceptibility to corrosion. It first became widely used in jewellery in the late nineteenth century, when methods were found to make it more easily workable. It features heavily in the delicate Edwardian jewellery of the first decades of the twentieth century.
The part of a ring that sits on top of the finger and supports the bezel. The gallery is sometimes engraved, pierced or open sided with patterns.
A term used to describe a gemstone that has not been subject to any treatment, such as heat treatment.
A term used to describe the severity of the internal and external inclusions in a gemstone. See The Four C’s for further information.
Derived from the Greek meaning ‘unbreakable’, diamond is a mineral, considered to be the most beautiful and rare of all gemstones. Diamond has been associated with love for centuries.
Named so from the Greek ‘green stone’, emerald is coloured by the trace elements chromium or, less often, vanadium. Emeralds have been mined in Egypt since the 4th century BC. Emerald is a stone that is said to open the heart chakra and symbolize ‘successful love’. It is green variety of the Beryl family, a species that also includes aquamarine, morganite and red beryl. The most desirable emeralds are mined in Muzo, Colombia, though emeralds are also being mined in other areas of South America, Central and Eastern Africa, Madagascar, Pakistan, Afghanistan and Central Asia. Read more
The diamond colour grading scale ranges from D to Z. See The Four C’s for more information.
A weight measurement of a gemstone or gold. The term is derived from the ancient used of carob seeds to balance scales when selling amounts of gold or gemstones. The term is often shortened to ‘ct’.
The section of the ring which fits round the finger. Also known as a shank.
Out of stockShipping & Returns