Our Services Diamond price beat policy Contact us to compare a competitor's diamond against one of our diamonds. We offer to beat their price on a comparable diamond. Learn More Free ring sizing We offer complimentary resizing on all rings during the first year following your purchase from us. Secure shipping We provide free, secure shipping on your purchase. Orders are shipped using the fastest delivery option available in your area. Diamond upgrade Find out about our lifetime diamond upgrade program for all Sydney Diamond Company diamonds. Learn More Lifetime Warranty We stand behind our products and warrant that all items will be free from manufacturing defects for the life of the product. Learn More Referral program Tell your friends about Sydney Diamond Company, and you can both save up to $100. There's no limit to how many friends you can refer! Call us to find out more. Not quite sure yet? Why not visit our contact page, or call us on 1800 423 786, we would love to chat with you!