Platinum, emerald and diamond brooch, J.E. Caldwell, circa 1950, modelled as lines of interwoven scrolls pave-set with brilliant-cut diamonds surmounted by three flowerheads decorated with brilliant-cut diamonds and circular-cut emeralds, approximately 35 mm x 20 mm, signed Jec & Co. For J.E. Caldwell & Co., numbered W 1472.
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- Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
- Emeralds - Emeralds have been used in jewellery making for thousands of years, and are prized for their deep green colour, which is caused by the presence of chromium and vanadium in the mineral beryl. Because of their rare colour, emeralds are often more valuable than diamonds of a similar size and quality. In jewellery making, emeralds are typically cut into round or oval shapes to maximize their color and clarity. They are often set in gold or platinum and used as the centrepiece of a piece of jewellery, such as a ring or necklace. They can also be used in combination with other gems, such as diamonds, to create intricate and beautiful designs.
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