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SPARKLE WITH SUBSTANCE

Fine jewelry, designed for real life.

Marrow Fine is an independent fine jewelry house, established in San Diego, California in 2016 by designer Jillian Sassone. From the beginning, our conviction has been simple: fine jewelry deserves a place in everyday life, not a velvet box reserved for special occasions.

Our designs balance modern style with timeless craftsmanship, crafted from exceptional materials sourced with the same care we bring to the design itself.

The result is jewelry made to be lived in — a signature you reach for without thinking, an heirloom in the making, made with the kind of intention that lasts.

Meet Jillian

A woman with wavy blonde-highlighted hair is shown wearing a black top, with a close-up inset of a gold ring featuring a large iridescent opal center and turquoise accents. Text at the bottom reads, 'The heirloom rework that started it all!'.

“My journey as a designer began with an heirloom rework for my grandmother, Mary — reimagining her jewelry into something new to make my own. That one project opened my eyes to the power jewelry has to carry history while taking on an entirely new life, and it continues to shape the way I approach design today.

Inspiration finds me everywhere, from architecture and travel to the textures, colors, and quiet details of nature. My hope is that every Marrow piece feels beautifully made, deeply personal, and becomes something you'll reach for instinctively for years to come."

Jillian Sassone

Founder & Creative Director
A Glimpse Inside

Jillian's jewelry box.

The fine jewelry favorites our Founder & Creative Director, Jillian, reaches for on repeat.

Rose Signet - Marrow Fine

Rose Becoming Signet

Curved Pavé White Diamond Ring [yellow gold]

Curved Pavé White Diamond Ring

Abstract Bezel Lab-Created Diamond Hoops [Yellow Gold]

Abstract Bezel Lab-Created Diamond Hoops

Twist Link Bracelet [14k yellow gold]

Twist Link Bracelet

Close-up portrait of an older woman with one hand raised to her face, wearing a ring with a pink opal center and dark green and black stones on a gold band.

Jewelry with good bones.

The name Marrow was inspired by the idea of good bones — recognizing the beauty in what already exists and preserving what makes it special.

From heirlooms passed down through generations to antique diamonds with a history of their own, we've always been drawn to jewelry that carries a sense of permanence.

Learn More · Custom & Heirloom →
A gold ring with a marquise-shaped clear gemstone setting, displayed on peach-colored paper alongside three loose clear gemstones and black tweezers holding one stone.

Thoughtful materials,
chosen with i
ntention.

We partner with trusted suppliers and skilled artisans to source reclaimed gold whenever possible, along with responsibly sourced diamonds and gemstones chosen for their beauty, character, and individuality. We're especially drawn to antique diamonds and one-of-a-kind stones—materials that bring a sense of history and make each piece feel truly unique.

Every decision, from sourcing to craftsmanship, is guided by the same principle: creating jewelry of lasting quality that you'll wear and love for years to come.

Learn More · OUR MATERIALS →

AS LOVED BY

MEET US AT MARROW

Visit us in person

We'd love to meet you! Visit our showrooms in San Diego or Newport Beach for a one-on-one shopping experience: try on pieces, talk through a custom design, or just come say hello.
San Diego

San Diego

Marrow at One Paseo 3665 Caminito Court, Suite 720 San Diego, CA 92130
Mon–Sat 10–7 · Sun 11–7
Book An Appointment →
Image of Marrow Fine's Newport Beach showroom interiors

Newport Beach

Marrow at Lido Village 3431 Via Oporto, #103 Newport Beach, CA 92663
Mon–Sat 10–6 · Sun 10–5
Book An Appointment →

MARROW ON THE ROAD

Not nearby? We travel too.

Our traveling trunk show program brings Marrow to cities across the country throughout the year, so you can get the same personalized experience closer to home.

View upcoming trunk shows →

THERE'S A NEW WORLD IN OUR UNIVERSE

Meet Til Death World

Founded by Jillian, Til Death World explores love, commitment, and identity through a moodier, bolder, rock-and-roll lens. With expressive silhouettes, darker details, and the same uncompromising craftsmanship at the heart of every Marrow piece, it offers a bold alternative for the modern jewelry wearer.

EXPLORE →
A gold ring with a heart-shaped clear gemstone and a smaller ring featuring red stones and the gothic text 'til death' on a black band, displayed on a white textured fabric.