Lumera Diamonds: Loose Diamonds | GIA Certified Diamonds1-888-658-6372

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Loose Diamond

WHY our loose diamonds?

The Best Selection: Over 50,000 certified loose diamonds to choose from, 100 times the selection of even the largest jewelry stores.

The Best Prices: 20-40% lower than a typical jewelry store's sale prices.

The Best Service: Read some of our most recent customer reviews.

Lifetime Trade-In: Receive the full price you paid for your original loose diamond purchase. (get the details)

Quality Guarantee: Your purchase will appraise at or higher than what you paid or your money back, plus $100. (details)

Only GIA Certified Diamonds: unlike most, Lumera does not sell uncertified loose diamonds, or those certified by inferior labs. (learn about certification).

Free FedEx Overnight Shipping: with priority morning delivery on every order.

30-Day Returns: If you are not satisfied for any reason, return or exchange your certified loose diamond (and ring). (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.(details)

WELCOME TO LUMERA, THE BEST WAY TO BUY LOOSE DIAMONDS

Every diamond is available loose, or in a presentation setting. With 50,000 GIA certified loose diamonds to choose from, you're sure to find the diamond that's perfect for you. Describe your ideal diamond below, and learn more about how to evaluate and compare diamonds.

select loose diamond shape(s)

Round Princess Oval Marquise Pear Cushion Emerald Asscher Radiant Heart
Price Range
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Carat Weight
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Cut
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Color
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Clarity
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There are GIA Certified diamonds that meet your current search criteria.

Use your cursor to move the arrows at left to narrow the selection.

The 4 C's of Diamonds | Diamond Grading

Diamond grading, the 4 C's of diamonds, and everything you need to evaluate diamonds.

How to buy a Certified Loose Diamond

How to buy a diamond. Plus, appraisals, insurance, ring sizing, and more…

How to Propose

Learn the best way to propose; buying the diamond first, while still giving her a choice.

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What you will Receive

With every purchase, you will receive:

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

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Questions? Speak to a loose diamond expert…
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