If you are considering buying an engagement ring, please read this review. I do not write reviews, but because of the experience I had, I felt obliged to share. Searching for a reputable diamond provider can be a nerve-racking experience, especially when considering a visit to the diamond district. Prior to shopping for a diamond, I considered multiple referrals from colleagues and friends. Some purchased their rings from retailers, while others bought loose diamonds wholesale. After doing my own research, I set up appointments with several diamond providers. I found that some of the other dealers are pushy and try to convince you that their stones are the best possible and that no one else could possibly have a better selection to offer. It is unfortunate that there are some diamond dealers that try to persuade customers to buy something they don't want which often results in the hesitation many have about coming to the diamond district. For anyone that reads this review, please allow me to save you the time and effort involved in going through the hassle of finding the right diamond provider. Ron at 1 Diamond Source was clearly the best (and it wasn't even close). It is important that when you visit any diamond provider to know what you want. Upon our first visit, Ron took the time to explain to us what to look for in a diamond. He was polite, knowledgeable, and passionate about what he does. Once you have decided what you are looking for and what is important to you he will begin his search. Upon our second visit with Ron, he had a good selection of loose diamonds fitting the characteristics we were hoping for (diamonds other providers were unable to find). We carefully analyzed each, but knew immediately when we saw it that we had found the right diamond for us. It is visually brilliant. Everywhere we go, she receives compliments on how beautiful her ring looks. It is very unordinary the number of friends and strangers alike that admire and comment on her ring. Ron helped us find and amazing diamond and a put together a wonderful setting. She loves the ring and we could not be happier with it. Ron knows what so many other diamond providers struggle with: An engagement ring for most is a significant investment and the most meaningful aspect of his business is making sure that his customers are happy. Ron provided us exactly what she had dreamed of. To get the ring insured, I had the ring independently appraised and the price that Ron charged us was more than fair compared to the overall value of the ring. I will be going to Ron for years to come for all other jewelry (new earrings next) and referring him to anyone in search of a diamond provider. I want to sincerely thank him and let him know how much we appreciate his work. For anyone considering a diamond purchase, use Ron at 1 Diamond Source. You will forever be happy that you did. read more

Hands down the most professional and helpful couple I have ever met! Ron and Lois were extremely knowledgeable about every aspect of the diamond selection, from the cut to the clarity, and assisted me in selecting the perfect diamond, while making the whole experience painless and enjoyable. The added benefit was the custom band that they created to support the diamond, which was everything that my fiancé wanted and more. The ring is spectacular and I would recommend them to anyone who is looking to build a custom engagement ring! read more

I am the lucky recipient of a beautiful ring from this company! I did not have the pleasure of dealing with Ron or Lois directly, but my fiancee says they were a pleasure to work with! I can definitely speak about the quality of the finished product, which is amazing. The diamond is beautiful and the setting is wonderful and secure. I received the ring in perfect condition, with the appropriate papers to accompany it. I would highly recommend Ron and Lois to anyone looking for an amazing engagement ring! read more

For a long time we had been in the market for a replacement engagement ring. After considerable trial and error at well known retail stores, we had the good fortune to consult Ron of #1 Diamond Source in New York and purchased a spectacular diamond ring with which we are extremely happy. Ron's low-key manner, in-depth knowledge of the diamond market, transparent pricing, and design expertise made for an excellent buying experience. We give this firm the highest recommendation. read more

Ive been buying from them for over 7 years. Their staff is always friendly. I remember my first time, when I took 30 hours to decide what I wanted when I was looking for engagement ring for my fiance; they have patient and never act nasty to me even when I changed my engagement for a few times. And even after that, if I have needed anything repaired, it was done in timely manner. Great service! I would recommend them to anyone! read more

Ron and Lois nailed it again! First my wife's jaw dropping engagement ring, now 10 years later, beautiful diamond stud ear rings for a 10th anniversary gift. I can't say enough about the quality, service, honesty and price! If you are looking for that special gift that involves diamonds, this IS the place. 1 Diamond Source is the only shop I would recomend period read more

Got referred to #1 Diamond Source by a good friend...They are truly an exceptional place to buy diamonds. We worked with their GIA Graduate Gemologist that was extremely knowledgeable about diamonds and wonderful to work with. We got an amazing diamond at the least cost and, got it set at their factory in a stunning custom designed ring. read more

I just received my diamond heart pendant from #1 Diamond Source. It is so beautiful, with such sparkling diamonds that I can't believe it! Ron and Lois are wonderful to work with - very helpful, down-to-earth and do not push you go over your budget! I am thrilled to have this pendant - thank you so much!!!! read more

I purchased my wedding band through #1 Diamond Source and had a wonderful experience! Ron was great to work with, and he answered all questions in a timely fashion. I will definitely do business with them again. read more

Best in the business. Ron and Lois were able to provide me with and excellent diamond at a great price. Highly recommend. Very pleasant to do business. Will be a repeat customer. read more