Engagement Rings

Work with one of our experts to create your one-of-a-kind engagement ring. With a vast inventory of loose diamonds in all shapes and sizes, our experts will find the right diamond for you and your budget.

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Luxury Watches

With an inventory that includes Rolex, Cartier, Patek Philippe and Omega, whether you are looking to purchase, sell, or trade-in a luxury watch, finding the right model is easy at Jonathan’s Fine Jewelers.

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Loose Diamond

Buying and selling loose diamonds for over twenty years, Jonathan’s Fine Jewelers has established a reputation in Houston as the go-to jeweler for any size diamond at a wholesale price.

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Wholesale Diamonds & Custom Engagement Rings

Jonathan’s Fine Jewelers is the premium jeweler to buy loose diamonds, custom engagement rings, custom diamond jewelry, diamond jewelry and high-end watches in Houston, Texas and the surrounding areas.

Since 1991 Jonathan’s Fine Jewelers has carried loose diamonds and has been creating gorgeous diamond rings and making one-of-a-kind pieces of diamond jewelry for our discerning clients. A business that has been built on reputation and recommendations, Jonathan’s has become the choice jeweler in the city of Houston and the state of Texas for custom diamond jewelry and diamond engagement rings and wedding bands.

Our custom designs, engagement rings and loose diamonds don’t just service Houston and the surrounding areas. We ship our diamonds and custom engagement rings all over the country. Just contact us, and we can work with you over the phone, fly to your hometown or meet you halfway.

Jonathan’s Fine Jewelers also carries high-end watches and estate jewelry at affordable prices for all your gift giving needs.

The History of Jonathan’s Fine Jewelers

Since 1991 Jonathan’s Fine Jewelers has been quietly collecting, designing and providing the finest quality custom jewelry and diamonds to Houston and the surrounding areas. Built on word of mouth and reputation, Jonathan’s has access to the largest inventory of loose diamonds in the country and is the go-to jeweler for all custom designed pieces of jewelry.

Hanging a shingle on a door, Jonathan Siegel found an untapped niche in the Houston jewelry market by buying estate pieces of jewelry and diamonds from individuals and then selling those pieces to his contacts all over the country.   Although Jonathan is no stranger to the jewelry business and is a third generation jeweler, he knew the key was to provide a service that no one else offered.

Jonathan eventually met Sergio Nuncio, a young man who had as much drive and determination as Jonathan, and a partnership was born. Jonathan’s Fine Jewelers was relocated to a new space that was shared with a jewelry designer, who introduced Sergio and Jonathan to the world of custom designed jewelry. Read More Here 

At Jonathan’s Fine Jewelers, we treat our customers like family. We aspire to be your jewelers forever, and work hard to provide you with the best service, the best value, the best quality at the best price. Contact us to learn more about how to build your perfect diamond ring or custom piece of jewelry, and become part of the family.

Latest Testimonial
  • Hello Jonathan,
    Everything went well when I came to get the rings with Miriyam even though you were out of the office. The wedding was a couple weeks ago and the photographer is sending out teaser shots before she finishes all of them.
    Here are the rings together and our first "family" photo.
    Thanks for all your help with both getting the engagement and wedding rings made. I am sure I will be back because there are many anniversaries ahead of me :).
    1899496_10152794058447988_942085719145900926_o 10733428_10152794059442988_374733964793814584_o
    Corey – Houston, TX
  • Thanks for the professional appraisal of and offer to purchase my mother-in-laws estate jewelry. This wrapped up her estate for my husband and his brother. Thanks again.  
    Carol Ann Travis – Houston, TX
  • I first met Sergio due to a favorable Yelp review I had seen online. After visiting 4 other highly recommended places, I went to Sergio last with a couple rings to sell.  The experience was night and day by comparison to the others.  He took the time to take me into his office, closely examine the rings, tell me exactly what I had, what they were worth and why.  He then proceeded to give me his best price out of the box offer that was 40% higher than what I’d received previously.  I was impressed. Months later I had two more vintage rings to sell that I knew didn’t really fit his portfolio, but he offered to help anyway. After again visiting other highly recommended vintage jewelers, I went to Sergio last.  When he heard what I had been offered he took the time to contact another jeweler who immediately came to his office and bought the rings for twice what I’d been offered elsewhere. Sergio got nothing out of that other than the joy of helping out. I recently decided to consider selling a very important and valuable family piece, and didn’t even consider going anywhere else.  Again, Sergio took the time to closely examine the piece, explain to me what I had and what he would be able to do with it.  Again he gave me his best price first, and it was very reasonable. If you’re in the market, learn from my experience, avoid the running around…and go to Sergio first!  Thanks Sergio!  You’re the best…
    Bill – Houston, TX
  • I can't say enough about how happy I was with my diamond sale through Sergio at Jonathan's. Sergio provided me with a price quote over the phone, based on my GIA Certificate, which I though was very fair. Upon shipping him my stone for inspection, he was able to offer me more than he originally indicated on the phone. Sergio and staff were very responsive, professional and efficient in handling a small glitch in the payment process, and I was very satisfied with the outcome. I have happily recommended Jonathan's to my friends.
    Robert, Houston, TX
  • Jonathan, I just wanted to follow up and again thank you for the work you did on my wife’s engagement ring. You finished it last Apr. I proposed at the end of April (we were married in early October) and since then, all kidding aside, just about every week someone stops her and asks to see her ring. Total strangers gawk at the uniqueness of it. I am not sure how often people follow up with you to tell you how much they appreciate the effort and quality of your work. When I started with the process I was just trying to create something that I thought my wife (Onora) would like. The quality ring you helped create is awesome. And the best part is she gets to relive it every week or two when someone notices it and stops her to talk about it. She has even had a few complete strangers (women) grab her hand out of nowhere and stop her to look at it. She couldn’t be happier.  
    Steve, Houston, TX
  • Outstanding! Service was great and very patient. Jonny, helped me tremendously.
    Michael, Houston, TX
  • I have had a lovely experience every time I come to Jonathan's Fine Jewelers. Sergio, is the best!
    Antonia, Houston, TX
  • I was very pleased and impressed with Sergio's knowledge and how he assisted us today. He complemented my taste in the diamond I bought in to sell as a "good job".
    Karen, Kingsville, TX
  • Sergio and Jonny have both been extremely helpful and patient. They talked through different options and created a beautiful ring. Thanks!
    Brithi, Katy, TX
  • If you want an upfront, honest, genuine exchanges with your jeweler, go to Jonathan's Fine Jewelers. Ben Gordon, the Jewelry Judge, recommends his clients to Jonathan's Fine Jewelers and the reason is clear. The team operates with high integrity, honesty and value.
    Andrea, Stafford, TX
  • I have bought several items including an engagement ring from Jonathan's Fine Jewelers, and the service is always great.
    Chase, Houston, TX
  • Jonny was a superb jeweler from start to finish. He walked me through the process in a professional and charming fashion. I would definitely recommend him to other who are not experts in diamond jewelry.
    Daniel, Houston, TX