About Us

Koin International – the trusted name in Diamond Tenders

Our Company

What we do.

Our Team

Who we are.

Our Story

Why we do it.

Our Company

Koin International DMCC is a leading international diamond tender house, and one of the top tier tender houses in the UAE’s Dubai Diamond Exchange (DDE). 

We provide specialist rough and polished diamond sales, expertise and services to a global client base. We represent suppliers across the board from mines and large scale rough producers, to smaller artisanal diggers. The strategic partnerships we form with our suppliers, along with a broad spectrum client base of over 2,000 approved and pre-qualified buyers, allows us to leverage our expertise to ensure that we match exactly the right goods to the right buyers. 

As a leader in the field, Koin has also been one of the first tender houses to introduce lab-grown diamonds to the tender market.

Journey to Success

It has been an incredible and humbling journey, since the first Koin tender in 2015 to one of the leading international diamond tender houses today. This comes with many memorable moments, not least the opportunity to market and sell the 467ct Meya Prosperity—the 29th largest diamond ever found, and the 5th largest in Sierra Leone. We’ve achieved this by emphasising personal relationships, and honing our systems to meet the needs of our large network of clients. These factors combined with a passion and love for the industry and a deep belief in the need to evolve, are key driving forces behind Koin’s success today.

What we do… we do well!

In an industry constantly under pressure from shifting socio-economic and market conditions, we have developed key areas of focus which drive our success and the value we bring to the table.

Our efficient processes and custom secure online solutions allow us to provide both our buyers and sellers with optimal experiences, valuable insights and intelligence, whilst simultaneously allowing us to refine our own processes on an ongoing basis. We constantly listen to our clients, adapt to their needs, provide innovative solutions, and strive to improve the high levels of service delivery synonymous with the Koin brand – thereby further cementing the trust and integrity which underpins the relationships we hold with our clients.

Koin International is known as the trusted name in diamond tenders, a privilege we take seriously. Partnering with us, means that we are committed to your success.

Reach out to us, and let us welcome you into the Koin family.

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Carats Sold

Sales Held

Global Locations

Our Team

Koin draws on years of irreplaceable hands-on experience within the industry, with a team who together combine over 95 years of experience in almost every area of production from source to retail. Our passion and expertise, along with the strategic relationships we build with our clients, makes us committed partners with our buyers and suppliers in achieving their business goals and successes.

Adam Schulman

Adam Schulman

CEO

Adam has over 25 years of business development and leadership experience in the diamond and jewellery industry, with an extensive global network at all levels from mines through to governments, manufacturers and retail. He is a keen entrepeneur who is internationally renown for spearheading the development of rough and polished diamond tenders over the last 19 years, acting as an industry disruptor in gem trading.

Adam has served on panels and as a keynote speaker for several industry events, and was an initiator of the DDE’s Tender Best Practice Forum – an industry first.

Martin Gill

Martin Gill

Head of Operations

Martin possesses a wealth of experience and expertise in buying, pricing and assorting, including adapting to constant and often swift and volatile fluctuating market conditions.

With over 25 years experience in multiple aspects of the rough diamond trade, including an extensive background with a De Beers sightholder, Martin has a robust understanding of clients’ businesses, allowing him to efficiently understand and price rough diamonds of every kind. This enables Koin to handle large intakes of rough, and create very precise and tailored assortments for a large clientele.

Jacob Gill

Jacob Gill

Operations

Mitch Freedman

Mitch Freedman

Administration

Yoela Goldstoff

Yoela Goldstoff

Administration

Kristel Menguito

Kristel Menguito

Administration

Arslan Rehan

Arslan Rehan

Operations

Renitha Devi

Renitha Devi

Accountant

Dave Joyce

Dave Joyce

Technical Operations Lead

Jill Schulman

Jill Schulman

Project Manager

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Our Story

Every diamond tells a story… 

At Koin International, we don’t just sell diamonds. We are one chapter in the life of a diamond from its creation deep in the heart of the earth, to its final transformation as a sparkling symbol of eternity.

At every step along the way, we are invested in the people who bring this story to life. From our suppliers all over the African continent, the men and women who raise these minerals of hope from their dark origins into light; to our buyers who come from all corners of the earth, unleashing their vision and skills to create something magical; and to our staff who bring passion, expertise and excellence to this industry that is like no other.

The Koin story isn’t just about diamonds. It’s also about individuals, and the relationships we build. It’s about trust, integrity, commitment and respect. It’s about how to carry the story forward, together.

Become a part of the Koin story. And become a partner in bringing every diamond’s story to life.

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Koin Rough
Ekapa Sorter
Koin Rough Diamond
Ekapa Mine Conveyor Belt

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Contact

Phone

+ (971) 58 561 0203

Address

43A Almas Tower
JLT, Dubai, UAE