Some people prefer a few dainty rings, or a stack, and some go for one statement piece. This ring by Carelle qualifies as the latter, though they also offer the former for those so inclined.

This gorgeous piece is available with other stones as well set in 18k yellow gold – green quartz, lemon quartz, rose quartz, smoky quartz, and amethyst.  This version retails for $3,585. Who needs much more expensive diamonds, really, when you can just wave a big rock?