The Ardleigh: Ladies Antique Platinum Engagement Ring set with Diamonds. Artfully handcrafted in durable platinum, this original antique engagement ring features 0.25 total carats of diamonds throughout and measures 16.3mm in width from north to south. Delicate filigree decorates the interior of this ring accented by fine milgrain. Currently, the ring is a finger size 6.25 and is able to be resized for an additional charge upon request.