About Us

Our Story
Eustacio Jewelry was built in 2022 with one clear purpose — to help soon-to-be grooms find the perfect engagement ring for the woman they love.
It started with a personal experience.
Dr. Efraim Jeric Eustacio once spent half a year searching for the right ring for his former girlfriend, now his wife, Sahara Jane. He knew what he wanted it to represent: love, intention, and a lifetime promise, but finding a ring that truly felt right was not easy. The process was overwhelming, uncertain, and deeply personal.
Instead of settling, he chose to understand the craft.
He studied the diamond and fine jewelry business, learning about quality, craftsmanship, sourcing, and design, not just to create one ring, but to make sure no man would have to struggle the way he did when choosing something so meaningful.
From that experience, Eustacio Jewelry was born.
Founded by Dr. Efraim Jeric Eustacio and Sahara Jane Eustacio, the brand was built on trust, guided by quality, and driven by genuine relationships with every client. What began as a mission to create engagement rings grew into offering wedding bands, anniversary gifts, and fully customized fine jewelry pieces.
At Eustacio Jewelry, we believe that every piece carries a story. Our process is transparent and personal because behind every ring is a once-in-a-lifetime question. Some of our creations have witnessed proposals in front of Mount Fuji, others sealed love high above the city at N Seoul Tower, and some bloomed during cherry blossom season in unforgettable places.
Today, we are honored to be trusted by hundreds of clients across the world.
What inspires us most are the endless thank you’s, the heartfelt messages, and the stories of “she said yes.” Those moments remind us why we do what we do.
Eustacio Jewelry was built from love, for love, and we remain committed to helping you create a piece that reflects yours.

Meet The Team

Dr. Efraim Jeric Eustacio
Founder, Sales Director

Sahara Jane Eustacio
Chief Executive Officer

Mari Barroga
Social Media Manager / Sales Assistant









