Join the world's smartest diamond marketplace

Clever. End-to-end.

We believe in the power of collaborations

Better. Together.

Why UNI?

Your all-in-one platform for profit

Whether you’re a seller or a buyer, we've got solutions to make your day-to-day more convenient and simple. Only trade at the right price using our world-leading, real-time market data. We provide a single, unified solution for quality control, memoing, returns, shipping, and liability coverage.

Fast. Cost-effective. Hassle free.
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Buy diamonds simply, cost-effectively, and always at the right price.

Get our innovative retailer app that will boost your sales, as well as real-time market data, and an online inventory where you can buy or memo and get it next day to your door.

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Price it right, list it in minutes, sit back.

Use our market data to make high demand products, price them accurately, and list them to hundreds of retailers worldwide, at no cost.

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Prefer facts?

Embrace market data,
trade with confidence.

Get real-time market data and transform the way you price diamonds. We analyze the prices of over 1 million diamonds in real-time to allow you to make business decisions that are based on market facts.

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UNI's inventory of over 1 million diamonds is analyzed in real-time to deliver unrivalled insights.

Make buying and selling decisions based on facts, not guesses.

Get accurate prices, historic insights, and compare the stones you’re analyzing with leading manufacturers.

See a holistic view of the diamond industry with fast, intelligent, powerful tools and apps.


We couldn't say it better.

“UNI has simplified the whole memo process, is effortless to sell on, and is the best experience we've had.”

Bill Nanfeldt

Mark Peter's Diamond Designs

UNI in numbers

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Diamonds in our inventory


Buyers and sellers using UNI


The cost to memo


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