MEET OUR HEAD GEMOLOGIST
David Lash, GG has been a respected jewelry industry leader for over thirty years, and has been proud to call Huntington home for a decade. He graduated from FIT magna cum laude with an associates degree in Jewelry Design & Fabrication in 1990, and subsequently received Graduate Gemologist degree in 1993 from GIA, the most prestigious gemological laboratory & educational institution for gemology.
He spent much of his early career working on 47th Street in a variety of roles, including research gemologist at GIA Laboratories, quality control for major manufacturing companies that stocked the jewelry cases of Macy’s, Fortunoff, and many more, He has also worked as a Forensic Gemologist where he studied damaged gemstones and jewelry to assess what caused the damage, provided gemological training of sales teams at large retailers, and is a specialist in jewelry design and redesign, and much more – his versatility and broad experience is a tremendous asset to Tight Carbon’s clients.
In 2010, David founded Northeast Gemological Corporation, providing in-depth jewelry appraisals, estate assessments, and gemstone authentication right here on Long Island. In the past decade, he has assessed & appraised countless gems & pieces of fine jewelry, and has consulted for dozens of local jewelers, jewelry stores, and has even aided local authorities in authenticating pieces. His office, which features a state-of-the-art gemological laboratory, is nestled right in the heart of Huntington Village.
Whether you’re looking to create a one of a kind custom piece of jewelry, you’re looking for the perfect, authenticated vintage piece for your collection, or you’re looking to breathe new life into a longtime favorite piece, David & the Tight Carbon team will make it happen, and you can rest easy knowing that the piece will be high quality and up to the exceptionally high standards of a seasoned professional that treats every small detail & nuance with the utmost importance.
Decades of Experience. At Your Service.
Today, David works alongside a team of highly trained experts at Tight Carbon to provide a full suite of services using state of the art technology. Together, they use the latest techniques to accurately identify gems, properly grade diamonds, and give honest appraisals of fine jewelry that includes a thorough assessment of each piece, compares it through a nationally recognized gemological database, and takes into account current market conditions. 
With their exemplary knowledge and decades of experience in the gemological world, Tight Carbon’s team of graduate gemologists, jewelry designers, and master jewelers can craft exquisite new pieces for your collection. They will work with you to find the right stones, settings, and style to suit your needs and style. Whether you’re after an elegant, understated bracelet, a one-of-a-kind engagement ring, or a show stopping pendant that will catch the eye of everyone in the room, David and his team will create the perfect piece for any occasion to suit your taste & budget, and you can rest easy knowing that not only will your piece be stunning, but it will be of the highest quality – sturdy, durable, and stand the test of time.
When you come to Tight Carbon, you can be confident that you’re getting truly high quality gems and thoughtfully designed jewelry – you can shop with confidence knowing that you’re getting jewelry of the utmost quality. When you work with Tight Carbon to create a piece of jewelry, not only are the diamonds & gemstones authenticated, but they’ve been hand-selected with care by a knowledgeable industry professional – you can be sure that Tight Carbon will help you create the perfect piece for any occasion.
Diamonds | Precious Gems | Unique Jewelry
Our services
CUSTOM JEWELRY
Experienced, professional jewelers build one-of-a-kind custom pieces you're sure to love.
GEM CONCIERGE
Personalized service helps you discover the highest quality gemstones.
Elegance, Perfection
The finest gems & Jewelry
Office Hours & Concierge Consultation