Luxury & Hand-Crafted Designer Jewerly | The Vault Nantucket by Kather

The Vault Nantucket,
A Luxury Jewelry Boutique

Shop the Vault

Explore Katherine Jetter’s curated collection at our boutique jewelry store
for expressive color, exquisite craftsmanship, and timeless beauty.

Buddha Mama

Pink Enamel Hamsa Ring

Walters Faith

Morrell Graduating Chain Necklace with Extra Elongated Oval Diamond Link

ONDYN

Voyage Cuff

Join "The Love Club!"

Katherine Jetter's 'Queen of Hearts’ collection pairs precious gems and metals with chic colored enamel for designs that feel as unique as your love. KJ and her daughter share a pair that they wear every day to feel close and connected. Not too long ago, their two-person ‘Love Club’ grew into the sweetest heart pendant trend! KJ’s friends and family loved the idea and started swapping hearts and carrying their loves with them, too. Are you feeling the love?

Shop 'The Love Club'

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Oprah is Glowing in Katherine Jetter Hoops

Oprah's looking astonishing on the cover of her Oprah Quarterly Magazine, flaunting Katherine Jetter's Emerald and Pearl Hoop Earrings!

Shop Oprah's Look Now

Vault Nantucket in the Media

Enter KJ's Wardrobe

Learn Katherine Jetter's styling tips

Enter KJ's Wardrobe

Hoop, there it is!

Shop everyday staples, bold statement hoops and everything in between at our online luxury
jewelry store.

Shop Now

Robinson Pelham

Midi Rainbow Orb Hoop

Graziela

Diamond Three Sided Hoop Earrings

Melissa Kaye

Aria U Huggie Hoops (Diamond)

Robinson Pelham

Midi Orb Hoop, Blue Sapphires

Testimonials

★★★★★
“The Vault is my favorite store on Nantucket. It feels like I've entered a jewel box filled with beautiful and interesting pieces I don't see anywhere else. Katherine has curated the best from up-and-coming designers, as well as established ones, and she enjoys showing me all the exquisite jewelry as much as I enjoy trying it on! With her guidance and insight, Katherine has helped me find many unique pieces that I will wear and treasure forever.”
Susan Nelson
Vault Customer

★★★★★
“Whether it’s one of Katherine’s own designs or a designer from her curated selection, I’ve been in love with everything I’ve invested in with Katherine’s guidance. I always feel chic when I wear my Vault treasures and you can never feel too chic.”
Victoria McManus
Vault Customer

★★★★★
“Katherine and The Vault have many things in common, like their beauty, brilliance, quality, and uniqueness. I've had the pleasure of owning several of Katherine’s gems and I always enjoy shopping the beautiful designers and pieces. The Vault is the grown woman’s version of a Candy Store! You can always find something to love, whatever your taste and style may be.”
Penny Bradley
Vault Customer

The Vault Nantucket, A Luxury Jewelry Boutique

Shop the Vault

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Vault Nantucket in the Media

Enter KJ's Wardrobe

Testimonials

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The Vault Nantucket,
A Luxury Jewelry Boutique