Vintage Platinum Diamond Ring with Old Mine and RBC Diamonds
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Mid circa five stone diamond & platinum ring marked PLAT, old mine & early transitional RBC diamonds, ring size Q, weight 4.33 grams, tests as 950
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- Rbc (round Brilliant Cut) Diamond - An RBC diamond is a "Round Brilliant Cut diamond." It is a popular diamond cut, known for its excellent light performance and overall brilliance. A round brilliant cut diamond has 58 facets, which are precisely cut and polished to maximize the diamond's brightness, fire, and scintillation. The RBC cut is the most popular diamond shape, accounting for approximately 75% of all diamonds sold worldwide.
- 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.
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