Earth & Sea Gems

At our family-owned jewelry business, we craft more than just adornments; we curate timeless treasures that celebrate your most cherished moments. With passion, precision, and a personal touch, we transform stories into enduring pieces, marking milestones in the journey of your family's legacy.

A note

from our founders

Dear Valued Customers,

We are thrilled to share exciting news with you. In August of 2023, Gemological Resources underwent a significant transformation, evolving into Earth and Sea Gems through a transfer of ownership within our family. Terry O'Sullivan, a beloved figure in our community, has relocated to California to be closer to his children and grandchildren, marking a new chapter in our journey.

As a family-run enterprise with a rich legacy spanning over 45 years, we continue to uphold the belief that the experience of shopping for jewelry should be intimate and warm. In light of these changes, we are excited to introduce ourselves as Earth and Sea Gems, where the legacy of family values and commitment to excellence remain at the core of our identity.

Thank you for being a part of our journey. At Earth and Sea Gems, we are dedicated to providing you with an unparalleled jewelry shopping experience, blending tradition with a warm approach.

We look forward to serving our community!

Marian & Shawn O’Sullivan

Our Services

APPRAISALS

Discover your jewelry's true worth with our certified gemologists. Get expert appraisals for informed decisions.
CUSTOM DESIGN

Craft your perfect symbol of love with our custom wedding rings. From timeless classics to unique designs, our artisans bring your vision to life, ensuring your rings are as special as your commitment.
Gemstones

Buy and sell gems confidently with our expert jeweler. Secure transactions and unmatched expertise for your gemstone needs.

More Services

Want to change your setting from gold to platinum? Or need a new look for your engagement ring?
Our design consultants are some of the best in the industry and will help you discover the possibilities.
Many of those unwanted jewelry pieces and family hand-me-downs can be turned into cash. We are interested in purchasing estate jewelry, diamonds, watches and gold. We buy single pieces to entire estates, designer Jewelry – new and vintage, diamonds, gold, silver and platinum – broken or outdated in any condition. We offer salvage quotes and payment immediately upon inspection.
Our expert jewelers can repair your damaged jewelry item and restore jewelry to it’s original luster and design. We specialize in intricate restoration work in all metals including platinum. Let Earth & Sea Gems refurbish your treasured antique or heirloom jewelry to ensure its durability and beauty for years to come!
Whether you have a single jewelry item or an entire estate to sell, Earth & Sea Gems can turn your jewelry items into cash with dignity and privacy. Through our global network of potential buyers and sellers, Earth & Sea Gems will secure the highest price for your jewelry item.
Have a noticeable scratch on the table of your sapphire? We can re-polish the facets and make it look simply awesome. Our master diamond/gemstone cutters are able to enhance a diamond/gemstone that you already own in miraculous ways. We offer full recuts, or reshaping services.
Every now and then your pearls are going to need to be re-strung. If you wear your pearls quite often, then you will probably need to have your pearls re-strung once a year. Stringing is done by an experienced pearl stringer and most jobs are completed within 1-2 weeks.
Engraving creates a personal touch that can transform a fine piece into a work of art.

kind words

“I just wanted to thank you for the time, effort, patience and expertise you gave my son when he was choosing the engagement ring.”
— Susan C. Newark, DE
Well my mega ring is here! It is absolutely gorgeous!!!!
—April T. Las Vegas, NV
“I purchased a magnificent engagement ring for my fiancee, and she absolutely loves it.”
— Gregory F. New York, NY
GREAT CUSTOMER SERVICE!
—Samir T. Jersey City, NJ
The rings are beautiful and stunning. I find myself constantly looking at it and it just makes me smile, and thinking how lucky I am to have this on my finger.
—Krystal J. Langhorne, PA
I would HIGHLY RECOMMEND Earth and Sea Gems for any jewelry needs as I will surely be back at some point in the future!
—Patrick N. Wayne, PA
Once I found Earth and Sea Gems several years ago I will not shop anywhere else for jewelry. (Not the Caribbean, not On-Line, not anywhere ...)
—Judy R. Furlong, PA
I picked up my ring and anklet late this morning. Both are perfect!!!
—Sandra W. West Chester, PA
Glad you guys made it happen - so perfectly too. We are so so so pleased and happy about our experience with you guys. Beyond our expectations.
—Melissa B. Glenside, PA
It was likewise a pleasure to meet with you and we would like to thank you and your father for doing so many things for us, including driving all the way down from Philadelphia to meet with us.
—Vivat V. Sathorn, Bangkok
This ring has exceeded all my expectations and I know my wife is going to love it! It is truly an heirloom that will be in our family forever!
—Gene S. Atlanta, GA