Lux Accessories Best Friends BFF Forever Rhinestone Valentine Heart Necklace. Lux Accessories Best Friends BFF Forever Rhinestone Valentine Heart Necklace. Designed by Lux Accessories, a world leader in fashion jewelry. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!