Late Art Deco 2.80ct Diamond Three Stone Engagement Ring, c.1940s
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.
This term refers to the decorative art style of the 1920s and 1930s. Bold geometric shapes and opulence characterized the style of the era.
A method of setting whereby stones are set and secured between a number of ‘claws’, usually four, six or eight. The method of setting was popularised by Tiffany & Co. in the late 1880s, and allows more light to pass through a gemstone than other settings. Sometimes referred to as prong set.
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.
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.
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’.
One of the most defining characteristics of a diamond is its cut. While high grades of color, clarity, and carat weight affect a diamond, it's the cut that determines the symmetry of the stone's facets, its overall proportions, and its ability to reflect light. An expertly cut diamond will achieve high levels of brilliance, sparkle, and durability. For more information and cut types, see The Four C's.
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