Natural Calibrated Diamonds for Watches & Fine Jewelry
Direct access to established natural diamond manufacturers, for watch manufacturers, jewelry manufacturers, and professional buyers. Trade inquiries only.
A direct route to established diamond manufacturers.
RKM INTL provides direct access to established natural diamond manufacturers, with a focus on calibrated diamonds for the watch and fine jewelry industries.
Our role is sourcing, not manufacturing: connecting professional buyers with trusted manufacturing partners, on consistent quality, reliable supply, and direct communication — without unnecessary intermediary commissions.
Built for professional industry buyers.
This offering is business-to-business only. RKM INTL does not sell to consumers and does not handle retail or bridal inquiries.
Calibrated goods, sourced directly.
Round and fancy shapes, calibrated to specification.
Round Calibrated Diamonds
From approximately 0.70mm and above — including small calibrated diamonds for precision watch dial, bezel, and movement applications, as well as larger calibrated goods for fine jewelry production.
Fancy Shapes
Pear, oval, marquise, baguette, and tapered baguette, available as calibrated goods where relevant to a program's specification.
A professional partner for ongoing supply.
Precision
Calibrated to the tolerances watch and jewelry manufacturing programs require.
Consistency
Matched quality and make across a program, order to order.
Reliable Supply
Inventory and manufacturing relationships built to support ongoing production, not one-off parcels.
Direct Manufacturer Access
A direct line to established manufacturers — without unnecessary intermediary commissions.
Professional Industry Expertise
Sourcing handled by people who understand calibrated-goods specification and B2B trade norms.
Request specifications, availability, or a quotation.
For qualified trade buyers — watch manufacturers, jewelry manufacturers, and diamond wholesalers. Tell us your specification and we'll respond with availability.