
Outstanding service | Exclusive pricing | Industry expertise | Made in NYC
-
Full-Service Jewelry Production
From concept to completion, we offer end-to-end jewelry manufacturing under one roof in NYC. Our services include model making, 3D printing, casting, and expert assembly — ensuring consistent quality, faster lead times, and better control at every stage of production.
-
Precision Setting & Finishing
Every detail matters. Our master artisans handle stone setting with accuracy and care, using a variety of techniques to enhance brilliance and security. We complete each piece with meticulous polishing and custom finishes to meet your exact standards.
-
Customization, Engraving & Repairs
We offer the flexibility your business needs — whether it’s engraving for personalization or branded collections, or expert repair work to restore and maintain valuable pieces. From custom touches to post-sale service, we help you support your customers with confidence.
Our commitment to exceptional craftsmanship and stylish designs ensures that every piece we create is a work of art for your collection.

Engagement Rings
At JSA Jewelry, we understand that engagement rings are at the heart of any bridal jewelry offering — and your clients expect nothing less than perfection. That’s why we specialize in manufacturing premium engagement rings for retailers, designers, and brands looking for a reliable production partner. From timeless solitaires to intricate halo and vintage-inspired styles, we offer both ready-to-produce collections and fully custom design support.Our NYC-based workshop handles every stage of production in-house — from model making and casting to stone setting and finishing — ensuring consistent quality, fast lead times, and tight control over details. Whether you're scaling an existing line or launching something entirely new, we’re here to help you bring your designs to life with precision, efficiency, and the craftsmanship your customers expect.

Plain Wedding Bands
Wedding bands are one of the most consistent and sentimental pieces in the jewelry market — and a key category for every retail jeweler. We manufacture a wide variety of bands to meet your customers’ evolving tastes, including classic domed styles, sleek modern profiles, milgrain finishes, engraved options, and diamond-accented designs. All of our bands are made-to-order in gold, platinum, or alternative metals with full customization available.
As a full-service manufacturer, we support both bulk production and bespoke projects, with flexible MOQs and collaborative design services. Whether you're offering simple matching bands or signature branded styles, we provide the quality, reliability, and responsiveness needed to build trust with your clients and grow your business.

Eternity Rings
Eternity rings are a timeless symbol of everlasting love — and one of the most elegant offerings you can present to your customers. At JSA Jewelry, we produce handcrafted eternity bands with full or half diamond settings, available in a variety of cuts, sizes, and precious metals. Every stone is precisely set by our expert setters to ensure maximum brilliance and long-term durability.These rings are ideal for anniversaries, stacking styles, or milestone celebrations, and we work closely with retailers to create collections that reflect their brand identity and resonate with their clientele. Whether you're looking for classic round brilliant designs or unique custom layouts, we’re ready to deliver exceptional results — on time, and on budget.
-
Get in Touch
-
Address
38 W 48th Street Suite 801
New York, NY 10036 United States