Precious Carbon is a diamond retailer that sells natural and lab-grown diamonds and we also offer a wide range of elegant diamond jewelry pieces. We care about our customers and want to make buying diamonds easy and affordable. Our founders have over two decades of experience in the diamond industry, and they realized that customers were paying too much for diamonds. They founded Precious Carbon with a promise to match or beat prices in the market, so that customers get value for their money.
Precious Carbon (preciouscarbon.com) has 57 customer reviews on Five Star Index, with an average rating of 4.8 out of 5.
Also known as
preciouscarbon.com
Website
preciouscarbon.com
Category
Jewelry & Watches
Location
New York, New York
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 96% of reviews.
Latest
Most recent review: October 2026.
Edits
Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score
This company cannot pay to remove reviews or change its score.
Precious carbon will forever now be my first to recommend for those looking for engagement rings or any jewelry. I was picky as to what I wanted as an engagement ring. Alex worked with me every step of the way to bring my custom design to life. The ring once arrived was perfect! It was of high quality and for an amazing price. Precious carbon helped make my engagement perfect!
Response from Precious CarbonOct 5, 2026
Hi Lauren,
Thank you so much for such a thoughtful review! It genuinely means a lot to me to hear that I could help bring your custom design to life. I’m so glad you loved the ring and that we could make your engagement even more special. ❤️
Best,
Alex
B
B
I'll admit I was nervous about sending…
I'll admit I was nervous about sending a large sum of money to a company on the internet but Alex was really good about communicating with me through the whole process, sending me emails, photos, and even a video of the ring before completing it. It was overnighted to me and my girlfriend was blown away at how beautiful it was. I would definitely recommend using these guys based on my experience.
Response from Precious CarbonOct 5, 2026
Hi Billy,
Thank you for sharing this so openly. I completely understand why sending a large amount online can feel nerve-racking. I’m really glad our communication helped make the process comfortable and transparent, and that your girlfriend loved the ring. ❤️
Thank you for trusting Precious Carbon!
Best,
Alex
DA
David
Overnight shipping took 3 weeks.
The Precious Carbon website claims “Lightning Fast Shipping” and that orders ship overnight. I placed an order on 9/3 for a loose diamond. Shortly after I received an email stating that the stone was located at their “overseas office” and it would be about a week to come in. I reached out and spoke to someone and asked about the delay and they said I should have chosen a different stone. Nothing in the item listing eluded to the stone being in another country. They finally shipped the stone on 9/16 overnight. I got the notification that it was ready to pick up and when I got to the location to pick up it couldn’t be found. The delivery status was incorrect and I had to wait an additional 5 days for the stone to arrive. Definitely a poor experience with the whole process. I took a chance buying from Precious Carbon when I’ve used other online retailers before without issue. I’ll go back to using other companies in the future. I feel like Precious Carbon is sourcing the stones after the purchase instead of having inventory readily available.
I will clarify some points from the response that was given by Precious Carbon. There is nothing showing what the lead time is for any of their product. It didn’t tell me that they didn’t have the diamond ready to ship. It only said lighting fast shipping and overnight delivery. As far as the pendant that you state you included as a good will gesture. That is not accurate. It was a free gift that was included based off of the amount of my purchase and had nothing to do with my poor experience. Also, when I went to pick up the diamond from the pickup location they had no record of receiving it. I had to contact FedEx and make a report that the tracking wasn’t accurate. It took an additional 5 days for the package to be found and I picked it up the day it was delivered to the pickup location.
Response from Precious CarbonSep 22, 2026
David, thank you for taking the time to update your review. We understand why the experience was frustrating, and we also think it’s important that anyone reading the review has the full context. We went back through the order history, our communication, and the shipping details, and wanted to clarify a few points:
1. The diamond’s location was discussed as soon as the order came in:
We had a conversation with you through our website chat & email after the order, where we explained that the diamond was located at our overseas office. We also offered you the option to choose from our Quick Ship inventory, which is specifically intended for customers who want a stone that is already located locally.
2. Your order confirmation included an estimated delivery date:
Your order confirmation showed an estimated delivery date of September 18. We shipped the diamond on September 16 via FedEx Overnight, so it was actually dispatched ahead of that estimated date.
3. “Overnight shipping” refers to the shipment once the item is ready to ship:
When we say overnight shipping, we mean that once the diamond is physically in our hands and ready to leave, we send it using an overnight service. It does not mean that a diamond located overseas will arrive overnight from the date the order is placed.
4. We did communicate the overseas location during the process:
We understand that the website wording around shipping may have left you with a different expectation, and that’s something we can continue to make clearer. At the same time, the overseas location of this particular diamond was communicated during our conversation.
5. The complimentary pendant was a goodwill gesture:
We want to clarify this point because the pendant was not an automatic gift included because of the purchase amount. Your loose diamond order did not meet our normal threshold for that complimentary item. We added the 1ct pendant as an additional goodwill gesture because there was confusion around the timeline and we wanted to do something extra to improve the experience for you.
6. The pickup situation was separate from the original shipping timeline.
The package was initially scheduled for delivery to your address. You then requested pickup from FedEx, so the package was redirected to a pickup location. Our tracking shows that it was made available for pickup the next day itself after the overnight shipment according to the FedEx Tracking. We understand there was also a discrepancy with the FedEx tracking information, and we agree that this should have been clearer.
7. We genuinely tried to make the situation right from our side.
From explaining the stone location, offering a Quick Ship alternative, shipping the diamond via overnight service ahead of the estimated delivery date, staying in contact, and adding the complimentary pendant as a goodwill gesture, we did everything we could from our side to improve the experience.
We’re not sharing this to dismiss your experience. We simply want to make sure potential customers reading the review also have the context behind what happened. We appreciate the feedback, and it has highlighted areas where we can make our shipping information and expectations even clearer.
NP
Nikki P.
The ring is absolutely amazing
The ring is absolutely amazing, and the price is so much cheaper than other companies! It does take a long time to make, but I’d rather wait longer to make sure the quality is good than have it made quickly with lower quality.
Plus, Alex is so nice and so easy to talk to! I’m very happy with my purchase, and I’m already planning to order another set soon. ☺️💍
Response from Precious CarbonSep 23, 2026
Nikki, thank you so much for the amazing review! 😊
I’m really glad you’re happy with the ring and that the whole process was worth the wait. I know custom pieces can take a little patience, but hearing that you felt the quality was worth it means a lot to us.
And thank you for the kind words about me too! It was genuinely a pleasure helping you through the process.
Already planning the next set? I’ll definitely be looking forward to it. 😄💍
JE
Jenn
Great Customer overall service
Great Customer overall service. Please keep in mind which I find out after placing the order, the ring setting you choose must likely are custom-made to order. The are not off the shelf. Because of it, it add around 20-25 days before they can ship your ring out. We submitted payment for our order with confirmation on 8/14 and got the ring in hand on 9/15. In between time, we did emailed few times for follow up. They answer us very quick so there is no delays. That is why I do strongly believe customer service overall is great and awesome. They will send you a copy of the CAD for the setting for approval before they start the job. They will send you pictures and video once they are done. We also find out the lab they used might not be in the US. Since when I went to asked for updates, they told us there is a delayed in custom. The quality is not bad at all, could it been better, of course. That's what happens when you purchased on line without see it or touch it. Worth the price we paid - YES. Shipment packaging is good and safe.
Response from Precious CarbonSep 23, 2026
Jenn, thank you so much for taking the time to share such a detailed review. We really appreciate it. ❤️
I’m especially glad you mentioned the communication throughout the process. We know custom jewelry can take a little more time than an off-the-shelf piece, so keeping you updated and making sure you knew what was happening at each stage is something we take seriously.
And thank you for being so understanding about the production timeline. We’re really happy to hear you felt the quality made the wait worthwhile.
It was a pleasure having you with us, Jenn. Thank you again for trusting Precious Carbon with your order! 💍
CU
customer
The whole process was amazing
The whole process was amazing, the communication they have is perfect, they let tou know of problems and give you solutions. If you ask for an update, they reply quickly and usually with a picture of the process its in. They give you the window of how long it will take and with mine they got it to me early. The ring is beautiful and my wife loves it, it was packaged very well for shipping. The over all experience was great and I will let everyone know where I got the ring, the quality is great, the price is not to bad and they stand behind their product.
Response from Precious CarbonSep 18, 2026
Matthew, thank you so much for taking the time to share this! It was genuinely a pleasure helping you through the process, and I’m really happy to hear that both you and your wife love the ring. I’m especially glad we have made this experience easier. Thank you again for trusting us with such an important purchase, and for recommending us to others! 💍😊
NS
Nicky S.
I love the ring so much
I love the ring so much! ❤️ The price is great, and even though it took some time, I have absolutely no complaints because Alex always made sure to keep me updated and answered all of my questions every time.
I would rather they take their time to provide me with the best-quality product than rush and give me something that isn’t well made. The quality is definitely worth the wait!
I will for sure be ordering again! Thank you so much, Alex! You are truly so nice, accommodating, and helpful. 🥰
Response from Precious CarbonSep 17, 2026
Nicky, this honestly made my day! ❤️ It was such a pleasure helping you through the whole process, and I’m so glad the ring was worth the wait. Thank you for trusting us and for being so patient throughout everything. We’ll definitely be looking forward to helping you with your next piece! 😊💍
JK
Joseph K.
White Glove Experience
The entire process was fantastic. From the initial meeting to review what my goals were to the final delivery. Excellent communication throughout. Unsolicited updates with pictures and videos. Alex and Richa are top notch! Will definitely be a repeat client!
Response from Precious CarbonSep 17, 2026
Thank you so much for the kind words! It was genuinely a pleasure working with you from the first conversation through delivery. I’m really glad we could make the entire experience smooth and personal for you. Enjoy the ring, and I truly appreciate you choosing us. Looking forward to having you back! 💍😊
