All rings listed on our website use IGI-certified lab-grown diamonds, typically D–E color and VS2+ clarity. These are premium quality stones offered at direct wholesale prices.

Yes! We customize with natural diamonds, sapphires, rubies, emeralds, and more. Any setting you see can be made with a natural stone. Just email us your desired color/clarity/budget, and our team will walk you through step by step.

We’re a small team split between Atlanta, Georgia (design studio + customer consultations) and South Korea (craftsmanship team).

We don’t operate a traditional jewelry store — and that’s why our prices are so low (jewelry stores carry massive overhead). Instead, we work directly from our studio. If you’re local to Atlanta, you can book a visit to meet our design team in person.

Yes. All natural diamonds are sourced under the Kimberley Process, and all lab-grown diamonds are certified and sourced responsibly from India.

Lab sapphires are real sapphires (chemically identical to natural corundum). The only difference is they’re grown in a lab instead of mined. We supply lab sapphires to some of the world’s biggest luxury brands (like Hublot & Jacob & Co). Many come with GRC or IGI certification. Same hardness, same sparkle — without the high price tag.

Lab rubies are also corundum, identical to natural rubies in composition and appearance. They’re graded on the same Mohs hardness scale (9), and offer the same vibrant red look without breaking the bank.

Lab emeralds are beryllium aluminum silicate crystals, just like natural ones, but created in controlled conditions. By adjusting trace elements (chromium, vanadium, iron), we can achieve Colombian-style bright green or Zambian-style bluish-green tones. Certified by the GRC.

Natural alexandrites are extremely rare and start at ~$10,000/ct even wholesale. We’ve developed in-house lab-grown alexandrites with an even stronger color-change property (green to purple) at a fraction of the cost. Durable at 8.5 Mohs hardness, perfect for everyday wear.

Most of our rings are made to order. Average delivery is 2–3 weeks from purchase to your doorstep.

After checkout, you’ll receive a confirmation email. Next, we’ll email you the exact stone we’ll use (video + certificate)—for lab diamonds this is typically D–E color, VS1+ clarity. Once you approve the stone and CAD, we craft your ring and update you at each step through to quality check and shipping.

Yes — we ship worldwide for free using secure, insured carriers like FedEx, UPS, or DHL.

Yes. All jewelry is shipped in plain, unmarked boxes for security. Inside, you’ll find a branded Luther’s Diamonds box for presentation.

Yes. Every ring comes with a lifetime warranty. It covers stone replacement (if one ever falls out) and craftsmanship defects. (Click for more)

We don’t sell insurance directly, but we recommend insuring your ring through Jewelers Mutual or adding it to your homeowner’s/renter’s policy.

On average, 3–5 weeks depending on stone sourcing and design revisions.

Your deposit secures your stone and starts the CAD (3D model) process.

A CAD is a digital 3D rendering of your ring before it’s crafted. This ensures every detail matches your vision.

We revise until you’re satisfied. That’s the beauty of our Customized™ process — nothing gets made until you approve it.

Yes. We can design and build around your stone. Our team will just need measurements and details to ensure a secure fit.

Yes, engraving is always free of charge.

Yes! We offer both ready-made and fully customized designs for men.

14K/18K Yellow, White, and Rose Gold, Platinum, and Black Gold options are available for most designs.