Victorian 6.00ct Diamond, Pearl and Ruby Oyster Shell Brooch, c.1880s
18 Carat Yellow Gold
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.
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 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.
A pigment of a vitreous nature composed usually of powdered pot ash or silica, bound with oil coloured glass as a surface decoration, fired at a very low temperature.
The diamond colour grading scale ranges from D to Z. See The Four C’s for more information.
A gemstone and an organic substance. Pearls have been coveted through the ages for their beauty as symbols of wealth and status. Pearl formation process begins when a foreign body enters a mollusk (usually an oyster or mussel) and is coated with nacre as a natural defense. The natural pearl market declined after 1900, and today 99% of pearls are cultured and are grown around the world in saltwater oysters and freshwater mussels. Read more
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’.
A chemical element with the symbol Au. Gold is a yellow, malleable metal which makes it perfect for use in jewellery making.
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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