The trusted name in diamond tenders

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Upcoming Sales

KI152: SAR & ANGOLA PRODUCTIONS

11–14 November 2024

Close: 14 Nov @17:00 (Dubai)

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DDE Tender Floor, Dubai
11–14 November

Presenting a sale of SAR & ANGOLA productions from melΓ©e through 10.80ct+ single stones.

CLOSED

TA020: KOIN ZIMBABWE ROUGH SALE

11–14 November 2024

Close: 14 Nov @12:00 (Dubai)

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DDE Tender Floor, Dubai
10–13 November

Original Zimbabwe rough production (few hundred thousand cts) from melΓ©e through 10.80ct+ single stones, ROM, and assortments.

CLOSED

KI151: SAR & ANGOLA PRODUCTIONS

7–10 October 2024

Close: 10 Oct @18:00 (Dubai)
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DDE Tender Floor, Dubai
7–10 October
Presenting a sale of SAR & ANGOLA productions from melΓ©e through 10.80ct+ single stones.

CLOSED

Our Numbers

Since 2015, we have achieved record-breaking sales year on year.
Our numbers speak for themselves.

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Carats Sold

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Sales Held

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Global Locations

Our Services

Koin International is a global leader in diamond tenders and sales, and one of the top tier tender houses in the Dubai Diamond Exchange. By combining our experience, expertise, innovation and passion with a long-term investment in our relationships, we deliver the best possible solutions for our suppliers and buyers. With our proven track record and methodology, partnering with Koin means we are committed to your success.

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Diamond Tenders & Auctions

We hold regular sales in Dubai,Β  representing rough suppliers from mines and large scale rough producers, to smaller artisanal β€œdiggers”. Bidding is via our secure online bidding platform.

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Rough Sorting & Evaluation

Our experienced team is skilled at advising on and creating the best possible assortments in order to create attractive and competitive parcel lots.Β 

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SALES LOCATIONS & VIEWINGS

Most Koin sales are conducted at the DDE’s highly secure and state-of-the-art viewing facilities with capacity for up to 40 viewing rooms, or in our own private viewing offices.Β 

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, is the driving force behind our success.

Adam Schulman

CEO

Internationally renown for spearheading the development of rough and polished diamond tenders over the past 20 years.

Martin Gill

HEAD OF OPERATIONS

Extensive experience and expertise in buying, pricing and assorting, assessing and adapting to market volatility.

Our Story

At Koin, 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 β€” our suppliers, our buyers, and our staff.

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

Our News

Keep up with what’s going on at Koin through our social media and news.

Did You Know:

Fireworks are a major part of Diwali celebrations, symbolizing the victory of light and joy. The bursting of fireworks is believed to drive away evil spirits. πŸŽ†

The city of Leicester, in the United Kingdom, holds the largest Diwali celebrations outside of India. Every year, tens of thousands of people gather in the streets to enjoy vibrant shows of light, music, and dancing! 

Happy Diwali! 🎊
HAPPY DIWALI πŸŽ‰πŸŽŠπŸŽ†
Koin and staff wish all our Indian customers a happy diwali. May you and your families be blessed with a bright and joyous Diwali filled with sweet moments and cherished memories.
β€œThe only way to achieve the impossible is to believe it is possible.” - Charles Kingsleigh (Alice in Wonderland)

#KoinQOTD #QuoteoftheDay
Did You Know:

The color of a flame can indicate its temperature and the substances burning. For example, a blue flame indicates complete combustion and higher temperatures, while a yellow or orange flame often indicates incomplete combustion, producing soot and lower temperatures.

Fire is often used symbolically in literature and culture, representing concepts like transformation, destruction, and purification. It holds significant meanings in various religions and mythologies worldwide. πŸ’Žβœ¨πŸ”₯

#KoinArt #KoinFunFact #naturaldiamonds #roughdiamonds #roughnaturaldiamonds #thetrustednameindiamondtenders #koininternational #koindiamonds #koindiamondsales #kointenders #dubaidiamondexchange #dubairoughdiamonds
Did You Know:

The green color of leaves is due to chlorophyll, the pigment responsible for capturing sunlight. In the fall, as chlorophyll breaks down, other pigments like carotenoids (which produce yellow and orange colors) become visible.

Leaves can change color based on environmental conditions. For instance, in autumn, cooler temperatures and shorter days cause some leaves to change from green to vibrant yellows, oranges, and reds. πŸ’Žβœ¨πŸ€πŸπŸ‚

#KoinArt #KoinFunFact #naturaldiamonds #roughdiamonds #roughnaturaldiamonds #thetrustednameindiamondtenders #koininternational #koindiamonds #koindiamondsales #kointenders #dubaidiamondexchange #dubairoughdiamonds
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Ekapa Mine Conveyor Belt
Koin Rough Diamond
Rough natural dIamonds from source
Koin rough natural diamonds

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Contact

Phone

+ (971) 58 561 0203

Address

43A Almas Tower
JLT, Dubai, UAE