Looking for an Oval Diamond in Addison, Texas? At Shira Diamonds - Wholesale Diamonds & Engagement Rings we design and create one of a kind engagement rings. About 99.9% of our diamond engagement rings are custom. Shira Diamonds has been in Dallas, Texas for over 20 years. If you would like to view this 1.50ct H SI1 Oval Cut Diamond please call or text 214-336-8629. We have 100s of loose diamonds in stock. The price on this 1.50ct H SI1 Oval Cut Diamond is $6000.00.