Katz Jewelry Company

Katz Jewelry Company A New York City jeweller with roots in the city as far back as 1963. A family operation ever since. A family owned and operated business for over 45 years.

Dedicated to helping our friends and customers with their diamond desires. Sales, repairs and custom designs.

A cute 14k white gold pair of earrings with 2 carats of lab grown diamonds to weigh down your ear lobes! Enjoy that extr...
05/14/2026

A cute 14k white gold pair of earrings with 2 carats of lab grown diamonds to weigh down your ear lobes! Enjoy that extra sparkle, enjoy the shape, and enjoy the sun, it’s finally here!

Check out this lovely 14k yellow gold eternity band - 2.5 carats of natural baguette shaped diamonds. Truly magnificent ...
04/28/2026

Check out this lovely 14k yellow gold eternity band - 2.5 carats of natural baguette shaped diamonds. Truly magnificent if I do say so myself 🤗.

Set in 14k white gold, this ring carries a beautiful 1.34 carat Center cut diamond with two sparkling side stones that f...
03/02/2026

Set in 14k white gold, this ring carries a beautiful 1.34 carat Center cut diamond with two sparkling side stones that frame it just right. It’s one of those pieces that feels classic to the moment you see it. Simple, bright, and made to last a lifetime!

03/02/2026

Here’s something different in a three stone ring, a 3 carat radiant cut diamond, with two round diamonds on the side totalling 1.14 carat, ain’t she pretty 🤗.

Lab grown diamonds do not need to come with the price tag the big boys like to push. We work with lab diamonds every day...
12/26/2025

Lab grown diamonds do not need to come with the price tag the big boys like to push. We work with lab diamonds every day, and when they are done right, they are just as beautiful without the unnecessary markup.

Whether you are designing something custom from scratch, updating a piece you already love, or fixing and improving what you have, we can work a lab grown diamond into it in a way that makes sense for you. Come talk to us, kick around an idea, and we will figure out something honest and well made together.

Did you know??? Lab grown diamonds have worked their way to becoming the majority market share in engagement rings! This...
12/24/2025

Did you know??? Lab grown diamonds have worked their way to becoming the majority market share in engagement rings! This has been a long time in the making and consumers are in the drivers seat!

A clean, classic graduated tennis necklace in 14 karat white gold, set with a full 14 carats of super high quality lab g...
12/23/2025

A clean, classic graduated tennis necklace in 14 karat white gold, set with a full 14 carats of super high quality lab grown diamonds. It sits beautifully on the neck and has that quiet sparkle you notice without it ever trying too hard!

Fresh Holiday Sideways Special!5 diamond cut options, 2 gold type options (14k white or yellow gold), and 2 chain option...
12/11/2025

Fresh Holiday Sideways Special!
5 diamond cut options, 2 gold type options (14k white or yellow gold), and 2 chain options (16 or 18 inch)... That's 20 potential configurations to make your sideways diamond pendant dreams come true, lol. Check them out: https://www.katzjewelryco.com/

A beast of a ring - but beastly in a beautiful way 🥹. A huge 4 carat radiant cut diamond is nested in a custom platinum ...
12/07/2025

A beast of a ring - but beastly in a beautiful way 🥹. A huge 4 carat radiant cut diamond is nested in a custom platinum ring. Don’t forget the two side diamonds for an addition 0.95 carats each!

Diamonds… In a diamond? YES! This unique necklace stands out for its sharp edges and ‘sparkle surrounded by sparkle’. Wh...
11/28/2025

Diamonds… In a diamond? YES! This unique necklace stands out for its sharp edges and ‘sparkle surrounded by sparkle’. What do I mean? Well, with 14 karat white gold holding a 1.80 carat princess cut diamond that’s bright as daylight thanks to its E color and flawless clarity. The smaller diamonds wrap around it like a quiet little chorus, all lab grown and all doing their job without showing off (well, maybe a little!)

Address

37 W 47th Street Unit 25
New York, NY
10036

Opening Hours

Monday 10am - 5pm
Tuesday 10am - 5pm
Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 4pm

Telephone

+12128190033

Website

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