Certified Lab-Grown Diamonds (IGI & GIA)
Wholesale certified lab grown diamonds for jewelers and retailers. Every diamond is IGI or GIA certified, filmed in 360° and has its own page.
10,000+ IGI/GIA certified · Same-day shipping before 6 PM ET · No MOQ · NY + LA · Trade approval same business day before 4 PM ET
| Stock# | Status | loc | shape | carat | color | clarity | lab | Certificate | p/ct | total | measurements | ratio | Image | Video | Growth type | flour | cut | polish | symmetry | depth | table |
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Certified lab-grown diamonds, wholesale for the trade
Guru Diam has 5,000+ IGI and GIA certified lab-grown diamonds in stock today across 50+ shapes, from our NYC Diamond District office on 47th Street and the Los Angeles Diamond District. Every certified diamond has its own page with the photo, 360° video, full grading and a link to verify the report. Loose lab grown diamonds ship the same day on orders before 6 PM ET. Sign in to see trade pricing, or open a trade account.
Trade questions
How fast do you ship?
Orders placed before 6 PM ET ship the same day from New York. International delivery takes 3–4 business days.
Is every diamond certified?
Yes. Each diamond on this page has an IGI or GIA report. Open the diamond page to see the report number and verify it on the lab's website.
How do I see prices?
Prices are for the trade. Sign in, or open a trade account: approval is the same business day if you apply before 4 PM ET.
Do you carry natural diamonds?
Yes. Certified natural diamonds are listed separately in Natural › Certified Diamonds.