Custom fine jewelry made in-house by master jewelers, plus investment-grade pieces, uncut emeralds, collectible coins and Atocha artifacts — all on Duval Street.
Owned and operated by Jay and Carmenza Pfahl, Neptune Designs has been in the heart of downtown Key West since 1976. We make custom fine jewelry with our own master jewelers, and we stock gold and silver fine jewelry, ancient coins and treasures including Atocha artifacts — with rare finds like uncut emeralds and investment-grade pieces for the serious collector. Professional in-house resizing, appraisals, repairs and cleaning complete the service.
Explore Our ServicesEvery engagement is handled personally, end to end — from the first conversation to the final handover.
Your ideas, made real by our in-house master jewelers — from engagement pieces to bespoke commissions.
Learn more →A wide selection of gold and silver fine jewelry, in store and online.
Learn more →For serious collectors — pieces chosen with investment in mind.
Learn more →Rare inventory including uncut emeralds and one-of-a-kind treasures.
Learn more →A collection of ancient coins and treasures, including Atocha artifacts — history you can wear.
Learn more →Professional in-house resizing, appraisals, repairs and cleaning.
Learn more →Reach out and a member of the Neptune Designs team will respond personally — no call centers, no runaround.
Contact Us Today