Don't wear other jewelry, as it will detract from your necklace, and keep makeup minimal. A middle part or hair pulled back will also help keep the focus on the necklace.
Swap bracelets for a golden cuff on each wrist to create a sculptural element. Don't be afraid to pile the gold jewelry on; just keep it tonal and let the base color be neutral.
Hand jewelry, from finger shields to snake-like spiral rings, is the perfect way to make a statement. The sculptural element of this jewelry makes it art.