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Business Details
28 Years
experience
Luxury Jewelry Store in Beverly Hills
Jacques Mouw Precious Jewels represents five generations of expertise in the jewelry industry, rooted in a legacy dating back to the 19th century. Our family's history includes landmark achievements such as the acquisition and cutting of the 353-carat Premier Rose diamond, now recognized as one of the largest D Flawless Pear-Shaped diamonds globally. With over 25 years of experience as an international wholesaler, we transitioned to retail operations in Beverly Hills to offer our clientele unparalleled access to luxury jewelry. Our team combines generational knowledge with modern craftsmanship to deliver handcrafted pieces featuring GIA-certified diamonds and rare gemstones.

We maintain rigorous quality standards, sourcing materials exclusively from ethical suppliers. Our expertise extends to custom design services, allowing clients to collaborate directly with our master jewelers. This combination of heritage, technical skill, and personalized service establishes us as trusted advisors in the fine jewelry market. Our commitment to transparency ensures all certifications and provenance documentation are readily available for client review.
Services
Custom Jewelry Design Diamond Engagement Rings Gemstone Jewelry Platinum Jewelry Estate Jewelry
Details
  • Year established: 1998
Highlights and features
  • Five generations of diamond and jewelry expertise since the 19th century
  • Offer GIA-certified diamonds and documentation for all major gemstones
  • Custom design services with direct collaboration from master jewelers
  • Maintain ethical sourcing practices for all materials and gemstones
  • Preserve traditional craftsmanship while incorporating modern design techniques
Associations and certifications
  • GIA
  • IGI
What people say
GIA-certified diamonds Custom design process Rare gemstone selection Beverly Hills location Family expertise
Services
Custom Jewelry Design
Our custom jewelry service allows clients to create unique pieces tailored to their specifications. Using CAD technology and traditional wax modeling, we transform concepts into reality with precision craftsmanship. Clients work directly with our master jewelers through every stage of the design process.
Diamond Engagement Rings
We offer an extensive collection of diamond engagement rings featuring various settings and diamond shapes. Our inventory includes both lab-grown and natural diamonds with full certification from GIA and IGI for quality assurance.
Gemstone Jewelry
Specializing in rare gemstone jewelry featuring rubellites, sapphires, and fancy colored diamonds. Each piece incorporates ethically sourced stones with documented provenance and certification for authenticity.
Platinum Jewelry
Crafting fine jewelry from platinum and 18K gold, our collection emphasizes durability and timeless design. All metal components meet strict purity standards with proper hallmarks for authentication.
Estate Jewelry
Curated selection of estate jewelry featuring antique and vintage pieces. Each item undergoes thorough authentication and appraisal to ensure historical accuracy and material integrity before being offered for sale.
People
Jacques Mouw
President
Fifth-generation jeweler with over 25 years of international wholesale experience, specializing in rare diamonds and custom design. Led the family business transition to Beverly Hills retail operations.
Questions
Do you offer international shipping?
Currently we only provide shipping within the continental United States.
Can I commission a custom jewelry piece?
Yes, our custom design service allows collaboration with master jewelers for unique creations.
Are your diamonds certified?
All major diamonds come with GIA or IGI certification for authenticity and quality verification.
What payment methods do you accept?
We accept major credit cards and bank transfers for all purchases.
Do you have a return policy?
Custom orders are final sale; standard items may be returned within 14 days of delivery.
Reviews (4)
Andre Leb
May 19, 2018 Report
Honesty is hard to find. I've bought my engagement ring and many other gifts since that my wife loves loves loves.
Carrie U.
Jan 03, 2015 Report
Jacques is the best kept secret in LA! He has a wonderful selection of jewels and can get or make anything you want. To make things even better, his prices are incredible and you never have to worry about the quality of the stones- Jacques knows how to pick the very best stone for the price. I have never been disappointed here, and Jacques has been supplying my family with jewelry for at least 20 years!

My only problem with visiting him is that I can always find at least ten things I want to buy! His pricing is incredible, he can get or make you anything you want and you can trust him. need I say more?
Andre L.
Mar 11, 2010 Report
Hidden in the heart of Beverly Hills this little family store truly made an otherwise daunting process much easier for an already nervous groom to be. The owner and his wife treated me like family they even helped me with the proposal logistics and gave me a little pouch to hide the ring! I learned everything I know about diamonds and jewelry in the weeks leading to my purchase. Most of all I know I can trust them rather than your mall/downtown jeweler where you don't know what you end up with.

I recommend anyone who is getting engaged to go there after looking around because they will also do custom hand made pieces based on your favorite designs. I already referred 4-5 friends there and they all had a similar experience. Sometimes we swing by to get the ring cleaned up with the steam machine.
Linus P.
Mar 11, 2010 Report
I bought a pair of diamond hoop earrings for my mother from Jacques and the experience couldn't have been more pleasant. The earrings were spectacular, nothing less than what you should expect from a Beverly Hills Boutique Jeweler. Since this gift was for my mother, I did not want to be embarassed by overpaying for something underwhelming and at the same time I wanted to be sure that the earrings would be something I would be proud to give to my mom.

I had shopped around for my purchase hitting a number of the high end jewelery retail names, but I felt the choices there were too commerical and not as personal. Buying from Jacques made my gift to my mom something personal and something special. In comparing prices for the earrings, I believe that I would have been embarassed by the earrings I could have gotten for the same price at a high-end retail jeweler or I would have had to pay a whole lot more for something similar.

I was very happy to have purchased my mother's earrings from Jacques and more importantly my mom was happy to. I would recommend Jacques if you want the confidence you are getting an impressive piece of jewelry at a more than fair price.