The ring described, a 10-carat gold signet ring featuring an intricately carved carnelian with the image of a hand holding a broken sword, would be a size J if you’re referring to UK ring sizing. This size is typically for a ring with an inner circumference of about 48.7 millimeters. The bold imagery on the carnelian, set against the rich backdrop of gold, would make this signet ring a distinctive and meaningful piece in any collection, symbolizing strength and resilience.