Sitewide
$150 OFF
Get $150 off your purchase of $990 or more at Plum Diamonds!
Est. ~$150 on $500
Plum Diamonds promotional codes, October 2026
3 working codes · $142 average savings
Plum Diamonds coupon codes
Deal
Up to $290 OFF
Plum Diamonds offers savings of up to $290 on select fine jewelry sets. Confirm qualifying items at checkout.
Est. ~$290 on $500
Newsletter Signup
$100 OFF
Join the Plum Diamonds newsletter and receive $100 off your first purchase!
Est. ~$100 on $500