Updated March 2026. Independent, research-based reviews of the top lab-grown diamond retailers. Compare inventory, pricing, policies, and customer experience to find your perfect match.
With 130,000+ lab diamonds, industry-leading 360° HD video technology, and exceptional customer service, James Allen sets the standard for online diamond shopping.
Deep-dive analysis of pricing, inventory, technology, and policies. Every review based on hands-on research and real customer data.
Industry-leading 360° HD video technology lets you see every diamond in stunning detail. Largest selection, best viewing experience, excellent customer service.
Carbon-neutral operations, beautiful exclusive designs, and 42 showrooms nationwide. Perfect for eco-conscious buyers who prioritize sustainability and unique settings.
100% lab-diamond specialists with unbeatable prices. Save 15-30% vs competitors on identical quality. Generous 60-day returns and lifetime warranty.
See how the top 3 retailers compare across key factors
| Feature | James Allen | Brilliant Earth | Clean Origin |
|---|---|---|---|
| Lab Diamond Inventory | 130,000+ | Large (curated) | ~18,500 |
| 360° HD Video | ✓ All Diamonds | ✗ Most (not all) | ✗ Select Only |
| Relative Pricing | Mid-Range | Highest (+15%) | Lowest (-20%) |
| Return Policy | 30 days | 30 days | 60 days |
| Lifetime Warranty | ✓ | ✓ | ✓ |
| Free Shipping | ✓ | ✓ | ✓ |
| Showroom Locations | 2 (NYC & DC) | 42 | Online-only |
| Best For | Technology & Selection | Ethics & Design | Budget & Value |
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