GIA Loose Diamonds

Welcome to Lumera, the best place to buy a diamond. Lumera offers the lowest price (up to 40% lower than the lowest sale price at traditional jewelry stores) combined with excellent service (our diamond consultants are available to answer every question), allowing you to find the best option from a selection of over 50,000 GIA diamonds.

Looking For Earrings?

Choose from our assortment of hand matched Diamond Stud Earrings set in 14k gold.

Not sure what ring size you need?
Find out using our free ring sizer.

Printable Ring Sizer GO

Why Lumera?

  • Selection: Over 50,000 GIA certified diamonds, 100 x the selection of the largest jewelry stores.
  • Value: Buy loose diamonds at prices 40% less than jewelry store sale prices.
  • Lifetime Trade-in: Receive the full price you paid for your original GIA diamond purchase. (get the details)
  • Quality Guarantee: Your purchase will appraise at or higher than what you paid or your money back, plus $100.
  • Free FedEx Overnight: fully secure & insured shipping, on every order.
  • 30-Day Returns: If you are not satisfied for any reason. (details)
  • Safe, Secure, Private: Find out how we protect your privacy, your package, even your surprise.
  • Free Appraisal: with every order, suitable for insurance purposes.
Chat online with a Consultant Chat Online

Customer Reviews

"My jeweler agreed that the Lumera diamond was a very fine stone (and assessed the retail value at about $12,000 more than I paid). All in all, I can't imagine a better way to buy a diamond than through Lumera, and I will repeat that to anyone who asks."

Z. Shipley
West Palm Beach, FL

» Read more
confirm now confirm now confirm now