Welcome to Petra Star – Where Every Gem Tells a Story

Welcome to our quaint space here at Petra Star, where fine jewelry meets the decades-long dedication of Dimitria Koumarnetos, a humble artisan in the realm of high-end luxury. Dimitria’s journey began over 30 years ago, mentored by Barry Weber, a 15-year Antiques Roadshow expert, who sparked her lifelong passion for vintage jewelry. This foundation set the stage for a career defined by artistry, authenticity, and a deep appreciation for craftsmanship.

Dimitria honed her expertise during eight years as the store manager of the highly respected David Clay Jewelers in San Francisco’s Marina District, followed by her leadership roles at Lang Antiques and Shreve & Co., San Francisco's oldest jewelry store. Each chapter of her career further enriched her knowledge, blending tradition with a modern eye for design and sustainability.

Grounded in a deep commitment to ethical sourcing, Dimitria takes pride in carefully selecting gems and metals that honor both beauty and responsibility. Her dedication shines through in every piece, celebrating the stories and uniqueness of the individuals who wear them.

The inspiration behind Petra Star lies in the Greek word “Petra,” meaning rock—a tribute to the strength and individuality within each of us. Our cozy showroom in historic downtown Mystic, CT, offers a welcoming atmosphere, where jewelry shopping becomes an educational and delightful experience.

We’re also proud to share that our 14-year online business, JewelConscious, has merged with Petra Star as The Vintage Vault, bringing a stunning array of vintage treasures alongside our sustainable luxury collections.

Whether you’re searching for a timeless piece to mark a special moment or simply want to explore the beauty of fine jewelry, we’re here to guide you with care and expertise.

Meet the team

Cambria is the newest member of our Petra Star family! Originally from the stunning shores of San Diego, CA, Cambria, along with her husband, has recently relocated to Southeastern, CT. With a lifelong passion for jewelry, Cambria's journey began at a young age, fueled by dreams of working at iconic brands like Tiffany & Co. By the age of 20, she turned that dream into reality and has since honed her expertise during her time at Pandora in San Francisco.
Living near Carlsbad provided Cambria with the opportunity to pursue her education in the jewelry industry through GIA courses, further enriching her knowledge and skills.
Beyond her work, Cambria finds joy in spending time with friends, cozy bonfires, and embarking on tranquil walks in the woods with her faithful companions, Wallen & Loki. Soon she will share her handcrafted Cambria's Cozy Comfort knitwear with our customers at Petra Star. She is eager to share her passion for jewelry with you and looks forward to forging lasting connections. With her client-focused approach and dedication to excellence, we're excited to witness Cambria's journey and growth here at Petra Star.