Lab-Grown Diamond Engagement Rings in Brooklyn & NYC | Haejin Jewelry

In the heart of Williamsburg, Brooklyn, Haejin Jewelry is a woman-owned lab-grown diamond boutique redefining modern luxury through transparency, sustainability, and artistry.

Every engagement ring and wedding band is made with solid, SCS-Certified 100% recycled gold, never hollow, never gold filled, and never plated. Our bracelets, necklaces, and fine jewelry are created only in solid or gold-filled materials, ensuring every piece is authentic, durable, and designed to last a lifetime.

We stand by sustainability in everything we do. It is not a trend; it is our DNA. From recycled precious metals to ethically grown, conflict-free lab diamonds, every element reflects our dedication to responsible craftsmanship and a cleaner planet.

When you choose Haejin, you choose integrity, purpose, and the creative spirit of Brooklyn, brought to life through timeless design and honest luxury.

Explore minimalist gold pieces, modern diamond essentials, and unique creations that express individuality and lasting meaning. Each ring is crafted by skilled artisans and hand-inspected in our Williamsburg studio, combining expert craftsmanship with Brooklyn artistry.

Visit our Williamsburg Brooklyn showroom near 123 Skillman Avenue to explore lab grown diamond engagement rings in person. Located in the heart of Brooklyn, our showroom offers a personalized and welcoming space to experience our jewelry up close. Whether you prefer to browse or schedule a private consultation, we invite you to discover a more thoughtful approach to engagement ring shopping in New York City.

Visit Our Brooklyn Showroom

Haejin Jewelry is Brooklyn’s trusted destination for solid gold, recycled gold, and ethical lab-grown diamond jewelry, crafted with love, purpose, and an unwavering commitment to sustainability.

Brooklyn Bridge view from Williamsburg — hero image for Haejin Jewelry, Brooklyn’s lab-grown engagement ring studio.

Design or Create Your Own Lab-Grown Diamond Engagement Ring | Brooklyn’s Haejin Jewelry

Discover lab-grown diamond engagement rings and wedding bands designed and hand-finished in our Williamsburg, Brooklyn studio. At Haejin Jewelry, every ring is crafted with solid, SCS-Certified 100% recycled gold and set with conflict-free, ethically grown diamonds.

Choose the path that reflects your vision:

Design Your Ring Online
Build your setting, choose your diamond, and preview your design instantly with our interactive Ring Builder.

Create a Bespoke Design
Collaborate one on one in our Williamsburg studio to create a custom engagement ring made from the ground up, an original design shaped around your story.

Both options celebrate sustainable materials, thoughtful craftsmanship, and the timeless artistry of Brooklyn.

Craft something only you will ever wear.

Made in Brooklyn, inspired by your story.

Timeless Elegance, Crafted for Forever

A stunning solitaire design that captures the essence of Brooklyn's timeless beauty.
Signature Collection
A stunning solitaire design that captures the essence of Brooklyn's timeless beauty.
Gemstone
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Custom Ring One of a Kind

Customer Reviews — Haejin Jewelry Williamsburg Brooklyn NYC

Haejin Jewelry is a Brooklyn jewelry studio in Williamsburg creating lab grown diamond engagement rings and fine jewelry with transparency and care. Read verified customer experiences from across Brooklyn and New York City.

5.0 ★ Average
Trusted by couples designing engagement rings in Williamsburg and NYC
Ethical & Transparent
Custom design, clear pricing, and local service

Haejin Jewelry Reviews at a Glance

Haejin Jewelry holds a 5.0-star rating across 37 verified reviews from 26 customers on Google, Yelp, and BBB with zero negative reviews on any platform since founding. Customers describe personal, no-pressure experiences designing engagement rings and fine jewelry at the Williamsburg Brooklyn studio.

Average Rating5.0 out of 5.0
Verified Reviews37 across Google (23), Yelp (10), BBB (4)
Unique Customers26
Negative ReviewsZero, on any platform, since founding
Most Reviewed ForCustom engagement rings (54% of reviews)
Most Praised QualityPersonal, no-pressure experience (69% mention custom design)
Owner RecognitionSue Kim mentioned by name or role in 88% of reviews
Review PeriodApril 2025 to May 2026 (continuous, no gaps)
Shea Google Review• 5★ View original

Personal care from an expert jeweler. Sue reached out to me directly, helped me design the ring, helped me pick out a diamond, and negotiated on my behalf. I got a great deal for the size and quality of diamond and it's so beautiful. Honestly couldn't be happier.

Owner Response – Haejin Jewelry:

Shea, those underwater proposal photos are honestly one of the most beautiful things I've seen all year. Truly. Thank you for sharing that moment with me, and for trusting Haejin to be part of it. The diamond sourcing piece you mentioned is one of the parts of this work I love most. Because I work directly with my supplier network rather than selling out of a showroom case, I can hunt for the exact stone that hits your specs (cut, clarity, color, carat) and then negotiate the price on your behalf. It's how clients end up with a noticeably better diamond for the same budget. Pairing that stone with a custom rose gold setting designed around your vision is exactly the kind of project that makes the studio fun to walk into every morning. Wishing you and your partner a lifetime of moments as beautiful as that one underwater. Congratulations to you both. Sue Haejin Jewelry, Williamsburg Brooklyn

Edward Lee Google Review• 5★ View original

We checked out a few different places before finding Haejin Jewelry in Williamsburg and by then I was honestly getting pretty frustrated with the whole engagement ring process. Sue completely changed the experience. She was patient, knowledgeable, and genuinely cared about helping us find the right ring. The final result was stunning and exactly what we wanted.

Owner Response – Haejin Jewelry:

Thank you so much, Edward. We truly appreciate you taking the time to share your experience with Haejin Jewelry. We are so glad you found us here in Williamsburg Brooklyn. Our goal is to offer a different kind of engagement ring experience where clients can explore options without pressure and actually understand lab grown diamonds, certifications, and pricing from the very first visit. Designing a custom engagement ring in recycled 14K gold is such a meaningful process, and it means everything to us that the ring feels personal and truly yours. That is exactly what we hope to create for every client looking for engagement rings in Brooklyn. For anyone searching for a custom engagement ring, lab grown diamonds, or a more thoughtful jewelry experience in Brooklyn or New York City, we are honored to be part of that journey. Thank you again for trusting us with such an important moment and for your kind words about our craftsmanship. We look forward to seeing you again.

Pierre Schumacher Google Review• 5★ View original

Sue is the absolute best. I went for an engagement ring and she guided me, explained all the different options, we iterated together to find something which my partner would like and she was always patient and super helpful. The ring turned out amazing and my partner loves it. Cannot recommend enough!

Owner Response – Haejin Jewelry:

Pierre, thank you so much for your kind words. It truly means a lot that you trusted me to create such an important piece. Designing a custom engagement ring is always a collaborative journey, and I'm so happy we were able to bring your vision to life together. Your attention to detail and care for your partner really showed throughout the process. At Haejin Jewelry in Williamsburg, Brooklyn, my goal is always to offer exceptional craftsmanship and high quality diamonds while making the experience personal and meaningful. Hearing that your fiancee loves the ring and said yes is the best outcome I could hope for. Wishing you both a lifetime of happiness and love, and I hope to see you again for future milestones.

Mihir Phatak Google Review• 5★ View original

Sue is the best. She helped us craft the perfect engagement ring step by step, explaining each feature. Unlike other places I visited, it was obvious that Sue really cared about making the process enjoyable and personal. The ring came out beautiful and my fiancee loves it. Highly recommend Haejin Jewelry to anyone looking for an engagement ring in Brooklyn.

Owner Response – Haejin Jewelry:

Mihir, thank you. This is exactly the philosophy I try to lead with, and seeing it described in your own words means everything. So much of engagement ring shopping pushes couples toward the biggest stone or the most expensive setting. I work the other way. My job isn't to sell you a ring, it's to walk you through every feature of a custom engagement ring step by step, explain the tradeoffs honestly, and find what actually fits your vision and budget. Sometimes that means a smaller, better-cut center stone. Sometimes it's lab grown over a natural diamond. Sometimes it's a simpler setting that lets the stone do the work. The right ring is the one you'd choose if you knew everything I know, and getting couples to that point is the whole job. So glad you trusted Haejin with something this meaningful. Wishing you and your partner a lifetime ahead together. Sue Haejin Jewelry, Williamsburg Brooklyn

Beth C. Yelp• 5★ View original

Sue is absolutely incredible to work with. She helped me create the ring of my dreams -- she sourced me a gorgeous stone for a truly amazing deal. The entire process was so easy and stress-free. I couldn't be happier with my ring and the whole experience. If you're looking for a custom engagement ring in Brooklyn, this is the place.

Looking for more than reviews? Explore our engagement rings, custom ring design, and ethical fine jewelry. Learn our story and why Williamsburg couples trust our lab-grown diamond expertise.

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It is her only proposal. Make it unforgettable.

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A romantic proposal overlooking the New York City skyline.

Proposal Planning For Brooklynites

Couple engagement proposal at Brooklyn Bridge at dawn with lab-grown diamond ring

How to Propose in Brooklyn: The Best Spots, Budgets, and Tips | Haejin Jewelry Williamsburg

Your ultimate Brooklyn proposal guide. The perfect spots, budgets, and ideas for creating your forever moment.

Read the full guide

What Makes Lab-Grown Diamonds Different?

Lab-grown diamonds share the same chemical, optical, and physical properties as mined diamonds. The difference lies in how they are created. Each diamond is cultivated in a controlled environment that replicates the earth’s natural conditions, resulting in a stone identical in beauty, brilliance, and durability but created responsibly with care for the planet.

Why Choose Haejin Jewelry in Williamsburg


At Haejin Jewelry, every engagement ring and wedding band is designed and finished with complete transparency, ethical sourcing, and respect for craftsmanship.

Every piece is created using responsibly sourced materials from trusted U.S. partners and completed with final inspection and quality control in our Williamsburg studio.

We use only solid, SCS-Certified 100% recycled gold and conflict-free lab-grown diamonds so each piece embodies honesty, sustainability, and timeless design.

Our bracelets, necklaces, and fine jewelry are never plated and are made only in solid or gold-filled materials, reflecting our commitment to lasting quality and integrity.

Our Clients and Community

We are proud to serve Brooklyn and New York City couples who value authenticity, sustainability, and connection. Every purchase supports a community built on kindness, creativity, and responsible luxury. Haejin Jewelry represents more than fine craftsmanship; it represents a commitment to ethical beauty and modern love rooted in Brooklyn.

Design Your Own Engagement Ring

Start by choosing a setting, then select the lab-grown diamond that fits your style and budget — and your ring is made to order from Brooklyn, NYC using 100% recycled solid gold (never gold-plated or gold-filled).

Our engagement ring settings come in a range of styles — solitaire, three-stone, halo, and hidden-halo — each available in 10K, 14K, and 18K white, yellow, and rose gold, as well as platinum. You choose the center stone shape and size that works for you: round, oval, cushion, emerald, pear, and more. Pair any setting with a lab-grown diamond to get the same brilliance, hardness, and fire as a mined stone at a fraction of the price. Every stone is conflict-free.

Use our sizing tools to find your ideal carat weight and ring size before you finalize. For a walkthrough of the two-step process, read our design instructions . Prefer to work with a designer from a blank canvas? Our bespoke custom design service lets you create something that doesn’t exist yet — we’d be honored to help. For in-person guidance, contact us or visit our Brooklyn studio.

Ethical lab-grown diamond engagement rings by Haejin Jewelry in Williamsburg Brooklyn — fine jewelry designed to last.

Guides & Education

Frequently Asked Questions | Haejin Jewelry Brooklyn

Are your diamonds certified and conflict-free?

Yes. Every Haejin lab-grown diamond is IGI or GIA certified and responsibly grown by trusted laboratories. Our Brooklyn jewelry studio is deeply committed to ethical sourcing and sustainability, ensuring each diamond embodies transparency, integrity, and modern luxury without the environmental or social impact of traditional mining.

Do you use real gold or gold-plated jewelry?

We use only solid, SCS-Certified 100% recycled gold in every design. Haejin Jewelry does not sell gold-plated jewelry. Our engagement rings and wedding bands are always solid gold. Each piece is hand-inspected, and quality-checked in our Williamsburg studio for lasting brilliance.

Where is your Williamsburg, Brooklyn studio located?

Our studio is located at 123 Skillman Avenue STO, Brooklyn, NY, in the heart of Williamsburg, Brooklyn, NYC. Walk-ins are always welcome, and visits are always pressure-free. You can stop by to explore our collection of engagement rings, wedding bands, and fine jewelry, or contact us anytime to schedule a private appointment for a more personalized experience. Every piece is thoughtfully crafted and hand-inspected in Brooklyn, ensuring the highest quality and care in every detail.

Do you create custom engagement rings?

Absolutely. Our Ring Builder lets you personalize every detail, from diamond shape and carat to metal color and ring size, with each ring crafted right here in NYC. Prefer a one-of-a-kind piece made from a blank canvas? Explore Build Something No One Else Has to commission a fully bespoke design using professional 3D renderings created exclusively for you.

What makes Haejin Jewelry different from other NYC jewelers?

Unlike mass-market chains, we are a woman-owned fine jewelry studio focused on craftsmanship, ethics, and emotion. Every piece reflects the Haejin Difference: sustainable luxury, transparent sourcing, and timeless Brooklyn artistry that sets us apart from large jewelry retailers in Manhattan.

Do you offer warranty or resizing services?

Yes. Every engagement ring and wedding band includes a lifetime care and service guarantee, covering complimentary cleaning, inspections, and resizing for our Brooklyn clients. We stand behind every piece we create.

Where can I read customer reviews?

We are proud to be rated 5 stars by couples across Brooklyn and New York City. Visit our Reviews Page to see authentic testimonials from engagement ring clients served at our Williamsburg studio.