Jewel In The Sea

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Jewel In The Sea Classic, Nantucket Inspired Jewelry! At a young age Kate left home and took a leap of faith, returning to the place she and her sisters loved.

Like many, Megan and Kate found their love for Nantucket growing up spending vacations on island dreaming of a day when they could call it home. This move landed her on the doorstep of Jewel of the Isle, owned by Gary and Kelli Trainor. What started as a summer job grew into a mentorship and apprenticeship that resulted in Kate attending the Gemological Institute of America in Carlsbad, California and earning her Graduate Gemologist degree. Through many years of working on her trade in the diamond district of NYC, utilizing her natural talent, Kate learned to design and hand craft the one of a kind jewelry that today defines Jewel in the Sea. In 2016, the Trainors made the decision to retire and approached Kate with the opportunity to purchase the very store that changed her life. Overnight, the sisters banded together with the help of Jack (Megan’s husband) and launched Jewel in the Sea. Their lifelong dream of living on Nantucket and owning a family business came to fruition, they finally dropped anchor on Nantucket. The result is the Jewel in the Sea that you see on 6 Straight Wharf today, the quintessential Nantucket story.

There is something about Nantucket in the fall. Quieter streets, cooler mornings, and a little more room to take it all ...
10/22/2026

There is something about Nantucket in the fall.

Quieter streets, cooler mornings, and a little more room to take it all in.

We feel pretty lucky to call this island home.

The beginning of forever deserves a ring that feels completely yours. 💍Whether you've already found the one or you're st...
10/19/2026

The beginning of forever deserves a ring that feels completely yours. 💍

Whether you've already found the one or you're still figuring out exactly what you love, our team can help you create a ring that reflects your story.

Start your custom journey with us at Jewel in the Sea.

The leaves are changing, and somehow the holidays don't feel so far away. 🍂Now is a good time to start thinking about th...
10/15/2026

The leaves are changing, and somehow the holidays don't feel so far away. 🍂

Now is a good time to start thinking about the people on your list, and maybe adding a few things to your own wishlist while you're at it.

Nantucket in the fall has a way of slowing everything down.Shop online or in person...we'd love to help you find somethi...
10/14/2026

Nantucket in the fall has a way of slowing everything down.

Shop online or in person...we'd love to help you find something special to take home with you.

Sometimes, less really is more. A delicate chain. A perfectly placed diamond. A piece you can put on and never think twi...
10/13/2026

Sometimes, less really is more.

A delicate chain. A perfectly placed diamond. A piece you can put on and never think twice about.

Simple, timeless, and beautiful on its own.

A Nantucket classic. 💙The Nantucket Basket Bracelet is one of those pieces that feels right at home on the island and ev...
10/06/2026

A Nantucket classic. 💙

The Nantucket Basket Bracelet is one of those pieces that feels right at home on the island and everywhere beyond it. Timeless, distinctly Nantucket, and made to be worn for years to come.

Sweater weather is here. 🍂Lots of layers and jewelry that add just the right amount of shine. The perfect excuse to refr...
10/02/2026

Sweater weather is here. 🍂

Lots of layers and jewelry that add just the right amount of shine. The perfect excuse to refresh your everyday favorites for the season ahead.

An effortless touch of shine, complement any look with our paperclip necklace ✨
09/29/2026

An effortless touch of shine, complement any look with our paperclip necklace ✨

The pieces we love most often have a story behind them.Whether you're caring for a treasured piece that's been passed do...
09/24/2026

The pieces we love most often have a story behind them.

Whether you're caring for a treasured piece that's been passed down or creating something entirely new, our team is here to help. Bring us your vision, your heirloom, or simply an idea, and we'll help you find the right way forward.

Visit us at 6 Straight Wharf to learn more about our repair and custom services.

Address

6 Straight Wharf
Nantucket, MA
02554

Opening Hours

Monday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 5pm

Telephone

+15082282448

Website

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