Certified lab-grown diamonds for jewelers, retailers, and custom designers. Consistent grading, transparent sourcing, and trade-only pricing — sold by the stone or by the parcel.
Sourcing wholesale lab-grown diamonds shouldn't feel like a treasure hunt. Three steps from inquiry to delivery, with a real person on the other end at every stage.
Submit the inquiry form below or use the estimator to draft specs — cut, carat range, color, clarity, quantity, and certification preference.
A LARNER & Co. representative reaches out by phone or email with matching inventory, IGI or GIA certification, and confirmed wholesale pricing.
Inspect the cert, approve the stone, and we ship insured from our Salt Lake City office. Memo and returns available for established trade accounts.
Skip to the inquiry form →
Tell us what you're sourcing — we'll reply within one business day with availability, certification, and confirmed wholesale pricing. New trade accounts welcome.
Adjust cut, carat, color, and clarity to see indicative wholesale pricing in real time. Final pricing depends on certification, parcel size, and current availability.
Six core shapes, available across the full carat range. Every stone is independently graded and certified, with reports available on request.
A Utah-based wholesale operation focused on a single thing — supplying trade buyers with consistent, certified, lab-grown diamonds at honest prices.
LARNER & Co. LLC supplies certified lab-grown diamonds — chemically and optically identical to mined stones, produced sustainably, and priced honestly for the trade.
We work directly with jewelers, retailers, and custom designers who need consistency, traceability, and competitive wholesale pricing. Every stone is graded and certified by IGI or GIA, with reports available on request.
We don't do retail. We exist to serve the trade — and we take that responsibility seriously.
— Abe Larner, founder