We create beautiful jewelry that’s good for the planet. Every diamond is premium quality, lab grown, and ethically sourced.

Browse our collection online or team up with us for a custom piece that’s easy and fun to design. If you’re not happy with your jewelry, neither are we. That’s our promise.

We have locations  in Brooklyn, Soho, and Litchfield County, CT. We also have trusted partners in Southern California, in both Newport Beach and Los Angeles if you happen to be on the West Coast.  Reach out and we can surely find the best way to connect.

The first thing to do is make contact with us and set up a virtual or in person consultation. Then, we will get started on creating something that is not only visually incredible, is ethical and always of the very best possible quality. You will work closely with one of our jewelry designers who will listen to your ideas, perhaps including some other thoughts that you may not have considered. Your budget will be taken into consideration and a 3D computer generated image will be presented to you for your perusal. Once you are happy, you will get a quotation and we will request a deposit. Then, we will start to make your piece.

From initial deposit on order, expect to receive your jewelry within 2 to 3 weeks as it is always made to order. If you need it sooner, please get in touch to discuss.The delivery service depends on your location and your choice of jewelry. It is best to talk to us about bespoke design delivery and international shipping because of the differences in location charges. If you choose express delivery and for some reason, your piece is delayed, we will always refund the express fee.

Global by Design, Personal by Nature

Wherever you are in the world, Lumeniri is just a virtual appointment away. We work with clients across the globe through video consultations, high-resolution photography, and detailed try-on videos—because seeing is still believing, even from afar.

Every Lumeniri piece is made to order—never mass produced. That means you're getting something truly special, crafted in limited quantities and tailored to your vision. Whether you're choosing a center stone or building a stack, we’ll provide close-up videos and images so you can fall in love from every angle.

If you're located near one of our Diamond Hubs—New York City, Connecticut, or Southern California—we’d be happy to meet by appointment to show you samples in person. But no matter where you call home, we’re here to bring your jewelry dreams to life with care, clarity, and craftsmanship.

Yes, please talk to us about inscriptions and engraving and we will organize it for you. All engraving is done by laser; however, there is an additional fee for this service. All engraved or customized pieces are final sale.

At Lumeniri Diamonds, we believe in the best quality possible. We work using 14 carat yellow, white and rose gold. We also work with 18 carat yellow, white and rose gold, as well as 950 platinum.

At Lumeniri, custom design is at the heart of what we do. Each bespoke piece begins with your vision—translated into a detailed CAD rendering that considers everything from metal weight and finger size to exact stone placement and carat weight. Once approved, we create a 3D-printed resin model to bring your future heirloom to life.

From there, it’s cast in your chosen metal and refined by hand—filed, polished, and perfected by our expert artisans. Our master setter then carefully places each lab-grown diamond, ensuring maximum brilliance and a flawless finish.

Of course, some styles—like our bestselling studs and classic solitaire rings—are so loved, we make them more than once. But even those are crafted with the same intention, quality, and care. Always sustainable. Always luminous. Always Lumeniri.

Grown with Intention. Crafted with Precision.

At Lumeniri, we work exclusively with leading lab diamond growers who prioritize ethics, sustainability, and minimal environmental impact. The rough diamonds we source are grown under the most advanced conditions, ensuring optimal crystal structure and clarity from the very start.

Once grown, each diamond enters our high-end manufacturing facilities—equipped with the latest technology and guided by decades of expertise. Our in-house team of master cutters and polishers meticulously brings every stone to life, revealing brilliance and fire through precision craftsmanship that rivals the finest natural diamonds.

From faceting to final inspection, every detail is handled with care to ensure exceptional beauty and light performance. We use only DEF color, VS+ clarity lab-grown diamonds in our fine jewelry, with IGI certification provided for pieces over 1ct.

Because when it comes to modern luxury, nothing should dim your shine.

All of our engagement ring diamonds come with GIA or IGIcertification. The diamond is laser inscribed with the unique certificate number. If you want to, you can verify its quality by taking it to a jeweler in your area.

At the checkout page, we accept the following: · Visa Debit · Visa Credit · MasterCard · Maestro · American Express · Bank Transfers

Once you have selected your favorite ring and the diamond of your choice, we will send you a ring sizer via mail to confirm the ring size on your order. We want to make sure we get a perfect fit. Please note that for eternity bands, we require you to visit a jeweler and have your finger properly sized as eternity bands cannot be adjusted for size once they are made.