Largest synthetic diamond supplier across USA, Europe and Russia

Mele from 0,005 ct.

Rough HPHT/CVD

Corundum, ruby, sapphire

Moissanite

Cubic zirconium

Alexandrite

Diamond substrates

About us

DIAMAN is the largest international supplier of synthetic diamonds, moissanite and corundum. Our geographical reach allows us to quickly and reliably deliver across USA, Europe, Asia and Russia. With more than a dozen affiliated partners around the world, DIAMAN customers are assured satisfaction in service from product selection through to delivery.

European approach - clarity, accuracy, punctuality.

We guarantee the quality of our goods in compliance with EU standards and regulations for sorting, technical control and quality control of products.

Quality, convenience, and protection

Three-factor quality control

DIAMAN provides quality control at every stage of production, selection and preparation for shipment. We eliminate the human factor by optimizing and automating our processes.

Convenience of locations

Sales and Quality control offices are currently concentrated in four key locations: London, Antwerp, Moscow and Hong Kong, providing convenient access of goods for your business.

The safety of your personal data is our priority. We reliably protect them in accordance in compliance with EU law and GDPR.

Services

Selection

Within 12 hours of recieving a request to select your stones, the DIAMAN team provides you iyou with all the information you need to form your order and its delivery to your destination.

Cutting & Polishing

Cutting, re-cutting, calculating the best market value, 4C’s and much more - this is only part of the DIAMAN cutting factory's service offer.

Color Treatment

Improving the color and characteristics of lab grown gemstones and diamonds. We offer a wide range of colors to suit your needs including pink, red, yellow and more.

All-in-one Solutions

Selection, purchase, delivery, customs formalities, certification for sale in the US, European, Asian and Russian markets, packaging to match your corporate brand identity - are just a selection of the options available for integrated enterprise solutions.