Fine Jewelry, Diamond & Gemstone Concierge

Founded in 2016 by Graduate Gemologist David Lash, Tight Carbon was born out of a passion for gemology and love for the art of jewelry design.

Selecting the perfect stone, whether it’s a diamond, sapphire, ruby, tanzanite, or more unusual colored stone, is hard to do without professional experience – there are dozens of factors & considerations that can effect the appearance, value, durability, and quality of any gemstone. Thankfully, Tight Carbon is here to help – as seasoned industry professionals, we know what to look for, and where to find it when it comes to diamonds & colored stones so that you can enjoy the process of crafting the perfect piece of jewelry, and focus on the fun while we do the heavy lifting finding top quality gems for your special project.

With over three decades of industry experience, a Graduate Gemologist degree from GIA, and an Associate’s Degree in Jewelry Design & Fabrication from FIT, for which he graduated Magna Cum Laude, few people stack up to David when it comes to curating fine jewelry.