Opulent, but not necessarily ornate. Well, that's what I think, anyway. I finished the moonstone necklace a few minutes ago; it's choker length with lots of silver and pearls. It's in the art nouveau style with a bow towards renaissance jewelry and it's pure decadence.
The centerpiece is a large moonstone cabochon with swirls and balls of silver surrounding it; the main portion of the necklace is Japanese two-in-one maille with large pearls inside of even larger silver rings. Three sections of smaller pearls alternating with little square silver beads swoop around and below the moonstone, enclosing a dangling large pearl and a tiny crystal.
I'm sitting up straighter just now because I'm wearing it.