Great Diamond

Great Diamond Gems and Jewellery offers an unparalleled level of service and many of your questions may be answered below. For more information about any of our services, we invite you to have a conversation with one of our expert Diamond and Jewelry Consultants at service@greatdiamondgemsandjewellery.com or 1-800-242-2728.

Great Diamond Gems and Jewellery offers free secure shipping on every U.S. order. Orders over $1,000 are eligible for overnight shipping.
Our commitment to you does not end at delivery. Items may be returned or exchanged within 30 days from when they were shipped, free-of-charge and no questions asked.

Great Diamond Gems and Jewellery provides a professional jewelry appraisal with all Build Your Own Diamond Jewelry items, as well as diamond, pearl, and gemstone jewelry over $1,000.
Learn about the flexible payment options available with the Great Diamond Gems and Jewellery Credit Card. Convenient 12 month Financing Option.

Your Great Diamond Gems and Jewellery purchase is insured from our facility until the moment you receive your item. Great Diamond Gems and Jewellery has arranged for Jewelers Mutual Insurance Group, to bring our U.S. and Canadian customers valuable information about helping to protect your purchase. Since 1913, Jewelers Mutual has been the only insurer dedicated exclusively to jewelry and offers comprehensive repair or replacement coverage with worldwide protection against loss, theft, damage, and mysterious disappearance. Insuring your new purchase from Great Diamond Gems and Jewellery can be quick and easy, and gives you the freedom to wear your jewelry without worry, knowing it's protected.

We recommend having your diamond ring cleaned and inspected every six months or if it undergoes any potential trauma. Inspections may help prevent the loss of a stone and extend the life of your jewelry. This cleaning and inspection service is free of charge to Great Diamond Gems and Jewellery customers on their Blue Nile diamond rings. The customer only pays for shipping, and Great Diamond Gems and Jewellery pays for return shipping. Repairs to your ring mounting can also be done at this time at cost.