8.50 Carat Ruby Art Deco Dress Ring With Diamonds, c.1920s
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 stone that has been polished into a dome shape with no facets. The cut is used primarily to create and enhance phenomenon in gems such as star sapphires.
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 gemstone that is from Burma. Burma (now Myanmar) is a country which is known in the gemstone industry as the source of the worlds finest rubies, which have a distinctive deep bluish-red colour and velvety appearance – known in the trade as a ‘pigeons blood’ ruby. Another reason for the allure of Burmese rubies is that they emit red fluorescence in normal light, making them appear to glow from within, enhancing their colour.
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 the cut of a stone, usually cut prior to 1910. They are characterized by having small tables, large culets and rounded outline with a high crown. They were cut so to produce optimal levels of fire, seen best in candlelight.
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’.
The section of the ring which fits round the finger. Also known as a band.
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
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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