I would like to thank Le Joaillier for helping me design and create my Fiancé's engagement ring!! A special thanks to Amy and Lenny for taking the time out and making Erica's ring special!!! You have truly made our engagement special!!!  - Thomas
I have been a customer of Le Joaillier for many years, partly because their collection of jewelry is consistently beautiful and varied, and most importantly because Len and his staff treat me with respect, consideration, and always with a desire to please. They are also willing to modify pieces to fit my taste, and we have worked together many times to create special and unique custom made items just for me. Le Joaillier also has jewelry at different price points which makes it perfect for those looking for a gift for a friend as well as a special someone.  - S.C.
I could not be any happier with the service I received during the process of choosing a ring and of course plan on using Len’s creative abilities to create both mine and my future wifes wedding rings. I would definitely recommend making Le Joaillier your ‘go to’ jewelry store, whether it be for brand new purchases or repairs on your existing pieces. Len Margolis, along with all the staff at Le Joaillier were so pleasant to work with. I have purchased several pieces of jewelry from both of their stores and each time I go into either store I feel right at home. The latest piece I purchased from Le Joaillier was an Engagement Ring for my fiancé. I needed a completely customized ring that required a lot of work since my fiancé wanted raw uncut diamonds, which are all abnormally shaped and hard to come by. I asked three different jewelers, being I do not live on Long Island anymore, if it were possible and they all told me that what I wanted would never work. Well that is not what Len at Le Joaillier said. Len worked with me for a few months on a design creating the most unique ring. It is the most beautiful piece of art that I have ever had any input on and it would not have been possible without Le Joaillier. My fiancé constantly receives compliments on her ring from family, friends and even strangers. Her favorite part in describing the ring is to say ‘it is completely hand-made by an amazing jeweler and artist!”.  - Matt K.
Dear Len and Le Joaillier, Thank you so much for creating such a gorgeous engagement ring for John and I! The Sapphire is gorgeous beyond words and I am thrilled how the setting and final product turned out! You sourced exactly the most perfect stone and beyond the quality of anything else we were able to find! John and I so appreciate all of your patience in helping us through the process and educating us on what makes my stone and sapphires so special! I especially appreciate you taking all of the panicked phone calls from a bride to be as you counseled us through the right setting. Your attention to detail is unparalleled. We truly feel that not only did we get the biggest, best, most beautiful stone- it was also the best value!! We will be sure to buy all of our wedding bands with you as what you are able to create is amazing!!! Thank you so much for everything!!!  - Eve and John
It helps when your family has a relationship with a jeweler and they can provide a reliable recommendation. Hopefully, those of you who don’t know Le Joaillier personally will pay attention to the testimonials. Considering an engagement ring, most recommendations are a well-known retail shop (where you’ll likely end up with a cookie cutter ring that many others are already wearing), or going to the diamond district on your own (good luck negotiating with those sharks). Beware of offers to “customize” a ring – often this simply means picking a setting that’s been used already, that happens to not be currently on display in the case. In contrast, a good family owned jeweler will have access to a large supply or settings OR can work with you to design something specific; and, can access all of the diamond supply of the diamond district or elsewhere. The jeweler will act as your advocate and present you with options based on your personal preferences and abilities. Len Margolis is a professional and a pleasure to deal with. Collaborating with Len, we created a truly unique engagement ring for my fiancée Stephanie. It’s one of a kind, incorporates her desires, my ideas and Lens suggestions, and the compliments are daily. It’s also a beautiful shop, in a wonderful plaza, in a lovely town (I speak for the Locust Valley location). The drive there is scenic from several directions. All of this counts towards a beautiful “presentation” and ambiance. Compared to the “wholesale” feeling of the diamond district, for example, or the “mass volume” feeling of the well-known retail brands. I strongly recommend you visit one of the Le Joaillier shops to consider an engagement ring or other fine jewelry.  - Michael De Feo
I could not have asked for a better experience while ring shopping with Len and Amy. They took plenty of time to explain the different styles of rings and answer all of my questions. They were quite patient and helpful with selecting the perfect ring for my fiancé. Their fantastic customer service and the ring was more stunning than I ever imagined. I will be recommending them to everyone.  - Andrew Blum