Ceylon sapphire & diamond set 18ct yellow gold earrings, marked 750, 2x oval cut blue sapphires 3.30ct, RBC diamonds = 0.66ct, item weight 3.8 grams, setting size 0.55 in. x 0.43 in. 2111050
- 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.
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