Part of leading diamond company De Beers' Burning Rocks collection, the Knight's Ring is a testament to the sophistication of pure medieval machismo. Carrying a price tag of USD18,000, this chunky 18-carat white gold ring is set with fancy brown princess-cut diamonds and topped by a rough unpolished diamond. The owner's initials can be engraved on it, after which it can be worn open to show the initials, or closed to hide them. Other similarly regal items in the Burning Rocks collection include the Mace Pendant, the Pallbearer Ring and the Powder Keg ring.