Union Gems

Fine-make diamond specialists Union Gems is a fine-make diamond specialist, catering to the needs of discerning jewelers across North America.

We're family-owned and operated, and we take pride in our friendly service and quality products. We specialize in fine-make GIA round and fancies (including cushions, ovals, and emeralds). We are a premier supplier of GIA 3EX and Hearts & Arrows, and we sell more than paper. We, personally, “cherry-pick” each and every stone.

08/24/2026

As soon as I saw it, I had to have it .... 7.02ct K-VS1 Emerald Cut — 1.45:1, XX excellent, 65.7% depth

08/21/2026

Please join us in welcoming Saud Hasnie to Union Gems — and to Houston.

Hussain brings 20 years of wholesale experience from New York, and is now a proud Texan. Outside of work, he's a devoted papa bear and an avid reader.

We're thrilled to have him on the team. 🤍

08/20/2026

Did you know we send 40,000+ individual melee diamonds for screening every year?

We do it to protect the integrity of your supply chain, and to make your workshop smoother, faster, and more efficient.

DM us if you need a new melee partner.

08/06/2026

One of one. 💎

A 2.50ct D-SI1 oval with an AGS Ideal cut grade.

While AGS Ideal rounds can be found, AGS Ideal fancy shapes are hard to come across. This diamond is truly 1/1.

If you have a customer in mind, DM us.
If you just love hi-end diamond cutting, follow us.

07/31/2026

New addition: 3ct I-VS2 Elongated Cushion (1.35:1, XX)

Even after 42 years of business, there’s still something magical about about the transformation of a rough diamond.

We love natural diamonds💎

07/30/2026

I’m a sucker for fine-makes, but Old Miners are growing on me. The chunky facets, warmth of cape colors … there’s character to these diamonds.

Just added a 2.02ct K–VVS2 to inventory. If you’re a retailer looking for one, DM us.

07/24/2026

Excited to share — I'll be speaking at AGS Conclave this September! 💎

📅 Tuesday, September 15 | 10:30–11:30am EDT
🎤 The New Diamond Horizon: Merchandising & Profit in a K-Shaped World

The diamond category is changing fast. De Beers. Lab-grown. A consumer market splitting in two.

My session cuts through the noise and gives AGS retailers a practical playbook: what to stock, how to merchandise, and how to protect your margins.

If you're attending Conclave, I'd love to see you in the room. Link in bio to add it to your schedule.

07/21/2026

At Union Gems, giving back isn't a campaign — it's a value.

We're proud to support NAMI (National Alliance on Mental Illness) and the vital work they do helping individuals and families affected by mental illness find community, education, and hope.

Mental health touches every one of us — our customers, our partners, our families. A healthy, safe, and supported society is the kind of world we want to be part of building.

06/22/2026

42 years ago, Hans started Union Gems from scratch.

40 years ago, he had his first kid. (That's me, GK.)

Over the decades, he's worn every title this business has to offer — founder, CEO, buyer. He's been good at all of them.

But the roles I think about most aren't on any business card.

Friend. Mentor. Father.

Happy Father's Day, Dad.

04/21/2026

Honored and grateful to be recognized by Jewelers of America as part of its 20 Under 40.

As a teenager, my summer job was helping my parents around the office. Over time, that turned into a beautiful career in an industry I’ve come to truly love.

Thank you to my family, friends, clients, mentors, and peers who have encouraged me and shaped my path along the way.

Thank you to Jewelers of America for the recognition.

Address

6222 Richmond Avenue Ste 865
Houston, TX
77057

Telephone

+17139770300

Website

http://www.uniongem.com/

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