I couldn't find anywhere local to make a custom wedding band that sat with my engagement ring so I found Gema & Co online. Communication was easy. I sent a CAD drawing of my ring and photos and they w... See more
Companies on Trustpilot can’t offer incentives or pay to hide any reviews.
See what reviewers are saying
The communication with them was quick and effective, I really liked that. Sadly, the ring that I ordered had a flaw, the stone wasn´t set in completely straight. It isn´t a big enough of a defect to s... See more
My first time shopping at Gema&Co and will definitely be a returning customer! I have a low set oval diamond on my engagement ring and needed an open ring spacer for my wedding band to sit flush. I ha... See more
Excellent customer service, Liz communicated clearly and surprisingly quickly through the entire purchase process. Quick shipping, it made it across the country in less than three days, quite impressi... See more
Company details
- #23 of 137 best companies in Jewelry Store
- #12 of 42 best companies in Jeweler
- #15 of 42 best companies in Jewelry Designer
Written by the company
Discover conflict-free, environmentally friendly, lab created Moissanite and Diamond fine jewelry. Free shipping, easy returns, lifetime warranty.
Contact info
San Francisco, United States
- support@gemaandco.com
- gemaandco.com
Replied to 100% of negative reviews
Typically replies within 24 hours
The ability to customize and order…
The ability to customize and order exactly what I wanted is top notch. Ease of interface, perfect delivery, exceptional presentation; all of the service provided by the Gema & Co Team is paramount. I have purchased my wife’s ring and a set of earrings, and she gets so many compliments in the shimmer and “shing-shing” in the sunlight. Anyone looking for a gem that glows like diamond and holds like granite should invest in moissanite.
Date of experience: June 20, 2025
I couldn't find anywhere local to make…
I couldn't find anywhere local to make a custom wedding band that sat with my engagement ring so I found Gema & Co online. Communication was easy. I sent a CAD drawing of my ring and photos and they were able to send me a resin ring to make sure they got the shape right and after that the real ring was made. It fits perfect and is exactly what I wanted!
Date of experience: June 17, 2025
Stunning E-Ring and Elegant Wedding Band
We bought both my engagement ring and wedding band in 14 k gold from Gema and Co and could not be happier. My fiance and I both think the e-ring is the most beautiful ring we have ever seen. The diamond is so brilliant, clear and sparkly - we are blown away! I keep getting so many compliments!
For the engagement ring, Liz provided us with a choice of 3 diamonds within the 2.1-2.5 carat range with IGI certifications and videos (upon request). We went with the 2.5 carat diamond, and she did not charge any extra for the additional 0.5 carats! All diamond choices were “Excellent” for Polish and Symmetry, “None” Fluorescence, D Color Grade, and VS 1 Clarity Grade (meaning top choices for diamonds!).
For the wedding band, I was looking for a simple, elegant look to complement my engagement ring and diamond, and not overpower it. "The Plain" wedding band was perfect. Both sit perfectly flush with each other and their shaft heights also match perfectly. We made customizations to the rings - increased both bands to 2.2mm and changed the e-ring setting to cathedral and a platinum basket. Highly recommend increasing the band (especially pave!) to at least 2 mm to maintain the integrity of the ring/small diamonds. For the wedding band, it is nice to have a slightly thicker band as well.
Liz is extremely responsive and prompt. The customization process was overall pretty smooth, despite some bumps along the way: 1) It took a bit longer than expected to have the renderings created (about a week for each render; we needed to reach out for a status update each time, and then she would send us a render), and 2) there was an error on 2 of the renderings, but it was a quick fix. Overall we are very impressed with the outcome. From start to finish it took about 5.5 weeks to order, create and receive the rings, which is a bit longer than expected. If we had to do it again, we would absolutely order from Gema and Co and highly recommend!
Date of experience: May 10, 2025
Quick to respond and accommodating
Quick to respond, very helpful and accommodating. One of the best customer service experiences I’ve had :)
Date of experience: June 11, 2025
Excellent quality
Excellent quality, and ring was just as pictured. Appreciated the quick responsiveness to emails, and the option to have a resin print of the ring mailed to me to ensure proper sizing/fit prior to casting.
Date of experience: May 29, 2025
The good and the bad
The communication with them was quick and effective, I really liked that. Sadly, the ring that I ordered had a flaw, the stone wasn´t set in completely straight. It isn´t a big enough of a defect to send it back, but it does ruin the ring upon closer inspection. Besides that it seems like a quality ring.
Date of experience: June 02, 2025
Unique pieces for special moments
Liz is super nice and helpful with all the questions you may have. The pieces are beautiful and the craftsmanship is really showing.
Date of experience: May 19, 2025
I will be returning my ring
I will be returning my ring. I ordered a very small .25 stone heart bezel ring.(pinky ring)Problem is my ring doesn’t look like a heart at all. I reached out to customer service and they said it was because the stone was too small. If I’m not going to receive what I ordered why is it available to order? I also lost 45$ on expedited shipping to receive an item I never ordered. Super disappointed. The gold is shiny, the stone is very pretty and it fits very well but not what I wanted. It’s beautiful if I wanted a gold ring with an unidentifiable shaped bezeled stone.
Date of experience: May 30, 2025

Reply from Gema&Co
They were very good at responding in a…
They were very good at responding in a timely fashion. In addition they were good in the way they handled customer service and customized the product according to the image we had in mind.
Date of experience: May 21, 2025
good ring yesssss
Date of experience: May 14, 2025
Great to work with
Great to work with! I did a custom ring with the team at Gema and Co and it turned out amazing - they were extremely responsive to emails and right on time for all of their commitments and promises. Would gladly work with them again.
Date of experience: May 21, 2025
Amazing Customer Service & Beautifully Constructed
When I ordered my ring, I had not expected the extraordinary customer service experience! They reached out because I ordered a pointed wedding band, but didn’t have an engagement ring on file. In short, it was no problem and asked for the measurements of my kite shaped engagement ring. They were so understanding, lovely, and so helpful. I really appreciated it- I knew I had more of a complex project. Because of all the adjustments, they asked if I wanted a 3D printed sample (it was extra, but soooo worth it) to make sure it fit. After receiving the sample, I responded with some comments which they easily addressed with the final product.
Now to my actual wedding band, it’s beautifully constructed. No seams are visible, super smooth, and thin but super durable. AND it fits perfectly with my engagement ring! I absolutely love it! I just loved my experience with Gema&Co. To those who helped me- thank you!
Date of experience: May 19, 2025
Friendly and helpful
They are always so responsive and helpful when I have a question, or want to have something done.
Date of experience: April 28, 2025
Excellent Experience
Ordered earrings and they are beautiful.
The customer service is also fantastic. I had made a mistake on my order and they were able to correct it very quickly.
Date of experience: April 24, 2025
Great customer service and products
I had a great experience with Gema&Co. Their customer service was outstanding. Any time I had a question, they responded quickly and were incredibly helpful throughout the process. My ring is absolutely beautiful and looks exactly as pictured. The packaging was also very nice and made everything feel extra special. I couldn’t be happier with the result!
Date of experience: April 24, 2025
Excellent quality’s and craftsmanship
I bought 1kt studs for my 50TH birthday. The quality and craftsmanship is beyond excellent.
Date of experience: April 22, 2025
GREAT experience - thank you Reddit!
I got my dream ring! My husband and I decided to get new rings for our anniversary - and I had a really clear idea for what I wanted. Liz was great at communicating and did exactly what I wanted, answered all my questions quickly, and was very informative. I love my ring! The lab diamond was even better quality than I thought it would be and she made my dream stack happen. Couldn’t recommend gema and co enough. It can be really unnerving ordering jewelry online - but this experience was great, I’m so glad I went with gema and co over the big box stores. Highly recommend!
Date of experience: May 04, 2025
Very happy with the ring and the…
Very happy with the ring and the delivery times.
Date of experience: April 28, 2025
Custom spacer for my wedding ring stack
My first time shopping at Gema&Co and will definitely be a returning customer! I have a low set oval diamond on my engagement ring and needed an open ring spacer for my wedding band to sit flush. I had to tweak the ring and customer service helped me with band thickness, gap size, etc. until it was a perfect match. My stack is now complete and couldn't be happier!
Date of experience: April 28, 2025
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.