Le Joaillier

Le Joaillier Fine Jewelry is an independent, family-owned jewelry store in Locust Valley, New York. Founded in 1961 in New York’s Diamond District, the business moved to Long Island’s Gold Coast in 1979. Second-generation owner Len Margolis is a GIA Graduate Gemologist, bringing gemological expertise and close attention to detail to the jewelry the store selects and creates.

The store offers fine jewelry, estate and pre-owned pieces, loose diamonds, watches, and bridal collections. Its engagement selection includes classic, contemporary, halo, solitaire, vintage, and other styles, alongside wedding bands for women and men. Customers can also explore jewelry from designers such as Mark Patterson, Doves, Kabana, Frederic Sage, and the Le Joaillier Collection.

Le Joaillier provides custom design services, helping customers create distinctive pieces or rework heirloom and older jewelry. Additional services include jewelry and timepiece repairs, appraisals, engraving, and jewelry and timepiece buying. The store emphasizes personalized, professional service and offers appointments at its Locust Valley location.