Business Details
50+ Years
experience
Le Joaillier Fine Jewelry in Locust Valley
Le Joaillier Fine Jewelry is a family-owned business established in 1961 in New York's Diamond District and relocated to Locust Valley in 1979. As a second-generation owner, Len Margolis, a GIA Graduate Gemologist, brings decades of expertise in gemology and meticulous craftsmanship to every piece we curate and create. We operate as a full-service jewelry store, offering custom designs, repairs, engraving, and appraisals while prioritizing personalized service and affordability. Our team combines technical precision with artistic vision to meet diverse jewelry needs, from restoring heirlooms to crafting bespoke pieces. With over 60 years of collective experience, we maintain a reputation for integrity, transparency, and exceptional client care.Our commitment to quality extends to competitive pricing on fine jewelry, watches, and estate pieces, ensuring value for every customer. Located on Long Island's Gold Coast, we serve local and regional clients with professionalism and attention to detail. Our services include CAD-assisted custom design, insurance appraisals, and expert repair work performed by trained artisans. We specialize in antique and estate jewelry while embracing modern techniques to transform ideas into wearable art. By balancing tradition with innovation, we aim to exceed expectations through every interaction, ensuring lasting relationships built on trust and excellence.
Services
Custom Jewelry Design
Insurance Appraisals
Jewelry Repairs
Estate Jewelry Sales
Watch & Clock Repairs
Precious Metal Buying
CAD Design Services
Antique Restoration
Gemstone Appraisals
Engraving Services
Details
- Year established: 1961
Highlights and features
- Family-owned since 1961 with second-generation GIA-certified expertise
- Specialize in custom CAD-assisted jewelry design and antique restoration
- Offer competitive pricing on diamonds, estate jewelry, and precious metals
- Provide insurance appraisals and repairs by trained, experienced artisans
- Maintain a 60-year reputation for integrity and personalized service
Associations and certifications
- GIA (Gemological Institute of America)
What people say
Fantastic customer service
Masterpiece engagement ring
Patient and helpful
Unique hand-made artistry
Perfect personalized experience
Services
Custom Jewelry Design
Our CAD-assisted custom design service transforms ideas into unique jewelry pieces. Clients collaborate directly with Len Margolis to create one-of-a-kind designs or reimagine heirlooms. The process includes digital renderings, revisions, and expert craftsmanship using premium materials. This service caters to customers seeking personalized jewelry solutions that reflect individual style and heritage.
Insurance Appraisals
GIA-certified appraisals for insurance, estate, or liquidation purposes. Services cover fine jewelry, watches, and precious metals with detailed documentation. Hourly-rate evaluations completed promptly, including replacement value assessments and market value updates every 3-5 years. Clients receive professional, court-admissible valuation reports from experienced gemologists.
Jewelry Repairs
Full-service repair and restoration for all jewelry types, including antique pieces. Services range from ring sizing and stone setting to complete restoration by master artisans. Complimentary inspections and cleaning accompany every repair. The team handles delicate repairs with precision while maintaining original design integrity for both Locust Valley locals and regional customers.
Estate Jewelry Sales
Curated selection of antique, estate, and vintage jewelry with premium pricing for signed pieces. Services include buying unwanted jewelry in any condition and offering trade-in options. The inventory features diamonds, gemstones, and collectible pieces from renowned designers. Customers benefit from expert authentication and competitive market pricing for both buyers and sellers.
Watch & Clock Repairs
Professional watch and clock repair services performed by master horologists. Includes battery replacements, complete overhauls, and refinishing for fine timepieces. Services come with a one-year warranty and free estimates. The team handles both modern quartz watches and antique mechanical timepieces, ensuring precision functionality and aesthetic restoration for valuable heirloom or contemporary watches.
People
Len Margolis
Owner & GIA Graduate Gemologist
Second-generation owner with over 30 years of experience as a GIA-certified gemologist and insurance appraiser. Specializes in custom design, estate jewelry, and jewelry valuation. Combines technical expertise with personalized service to create unique pieces and maintain the business's reputation for excellence since 1979.
Amy Margolis
Co-owner
Active co-owner providing personalized customer service and supporting custom design consultations. Works closely with clients during jewelry selection and design processes. Contributes to the family business's tradition of excellence while ensuring warm, professional interactions for both local and out-of-state customers.
Questions
What services does Le Joaillier offer besides jewelry sales?
We provide custom design, insurance appraisals, jewelry repairs, estate jewelry buying/selling, watch repairs, and precious metal recycling services.
Can you create completely custom jewelry pieces?
Yes, our CAD-assisted design process transforms ideas into unique jewelry through digital renderings and collaborative revisions with master jeweler Len Margolis.
Do you work with out-of-state clients?
Yes, we've successfully completed custom projects for clients nationwide through virtual consultations, detailed communication, and secure shipping.
What types of jewelry appraisals do you provide?
We offer insurance replacement value, estate probate valuation, and liquidation cash value appraisals performed by GIA-certified professionals.
How do you handle jewelry repairs?
Our master artisans perform repairs ranging from simple resizing to complete antique restoration, with complimentary inspections and cleaning for all customers.
Can you help redesign heirloom jewelry?
Yes, we specialize in transforming outdated or damaged heirlooms into modern wearable art while preserving sentimental value and quality materials.
