The Premier Custom Jewelry Partner for Independent Retailers
GJS is the preferred custom design & manufacturing partner for jewelers seeking excellence and reliability.

Crafted in the NYC Diamond District
GJS creates a seamless experience for our retail partners by providing quick turnaround times, unwavering standards, and competitive pricing. With over a century of combined experience and access to the talent and resources in the Diamond District, we reliably deliver high-quality craftsmanship to jewelers across the country.

About Our Service
We strive to delight our customers by doing what it takes to deliver on time, at cost, and above expectations. We provide our partners with the tools necessary to close the sale and over-deliver. We take pride in our customers telling us that we have become an extension of their business and an engine for growth.

Next-Day, No-Fee Sketches & CADs


Two-Week Turnaround on Confirmed Orders
We typically deliver orders within 3 weeks of confirmation. In most cases we can commit to 2 week turnarounds for no additional charge if requested. Put us to the test!
The Finest Materials & Premium Quality
Utilize Customer's Stones or Your Own
Made in the USA
100% of our custom manufacturing and assembly is in the USA, enabling precise lead-time estimates for expedited order fulfillment. We QC every piece in our NYC headquarters. All of our pricing is tariff-free.

Not Just Custom...
In addition to our custom design service, we offer the following products & programs to our retail partners.
- Fast turning, brilliant value diamond essentials
- In stock, one-of-a-kind statement pieces
- In stock, innovative diamond fashion & semi-mounts

Hand Crafted by GJS
Some of our favorites from over the years!
Contact Us
Have a question about our custom jewelry services or want to discuss a special project?