ENJOY BETTER MARGINS. INSTANTLY.

Hundreds of jewelry retailers, jewelry manufacturers, traders and wholesalers around the world work with Dianco to access a range of polished diamonds, crafted from the best quality rough diamonds, sourced directly from world-leading mines. 

DIRECT ACCESS TO MINES

As an Alrosa Alliance Member, a Sightholder of the De Beers Group and a Rio Tinto Select Diamantaire, Dianco promises to give you a wide range of high quality non-certified and certified loose diamonds that are sourced directly from the world’s largest mines.

STATE-OF-THE-ART MANUFACTURING

Dianco has a wide selection of wholesale natural diamonds that are cut and polished to perfection by our in-house production and cutting facilities. Place customized orders, enjoy consistent supply and unmatched assortments. Buying diamonds in bulk has never been this easy.

ROUND-THE-CLOCK CUSTOMER CARE

You deserve the best-quality diamonds and the best-quality service. At Dianco, we promise to ensure you have a seamless experience with us. We strive to deliver excellence with our diamonds and an enjoyable journey with our team.

SIT BACK AND RELAX WHILE YOU

ENJOY A WIDE SELECTION

ROUGH DIAMONDS

At Dianco, we know our diamonds in the rough. We carry a range of industrial rough and top gem-quality rough diamonds handpicked from the largest mines around the world.

POLISHED DIAMONDS

We combine art and technology to manufacture, cut, and polish an array of diamonds that vary in cut, color and carat making us the best, most-polished wholesale diamond store.

CERTIFIED DIAMONDS

Dianco carries a wide collection of GIA, IGI, and HRD certified loose diamonds that range up to 3 carats. Find the perfect high quality diamonds wholesale.

NON-CERTIFIED DIAMONDS


We also carry a selection of non-certified diamonds that vary from -2 to 2.00 carats. Whatever you need, we’ve got diamonds that are absolutely perfect for you.

To find out more about our diamonds.

WE GOT YOUR BACK, WE ARE THE

BEST PLACE TO BUY DIAMONDS WHOLESALE

Shake on It

Competitive

Pricing

Personal Account Manager

Global

Presence

consistent assortments
regular supply

Consistent 

Assortments

Regular 

Supply

Flexible

Payment Options

Certificate of

Origin

mm wise sizing

MM Wise

Sizing

custom manufacturing

Custom Manufacturing​

To find out more about our diamonds.

WE WANT MORE FOR YOU

LET'S GET YOU BETTER MARGINS

To ensure that we can offer our customers competitive pricing and a consistent supply, we have formed strategic partnerships with the world's largest mines so we can source our diamonds directly from them. With us, you’ve not only got high quality diamonds but also the best margins you can imagine.

rio tinto diamond mine

GET STARTED WITH DIANCO TODAY.

With our direct access to leading mines and seamless customer service, it has never been easier to enjoy better margins.