ABOUT
Each MRSJ piece of jewelry is more than an accessory – it is a personal talisman, a symbol of identity and self-care.
DESIGNER JEWELRY CREATED WITH VISION
ROOTED IN CZECH TRADITION, LIGHTED BY THE SUN OF BARCELONA
GIVING THROUGH DESIGN
WATERPROOF
& HYPOALLERGENIC
Each piece of jewelry from the Ondaluz, Oh My Pearl, Bohemian Amulets, Sea Creatures collections is created by the author and carries a unique signature - they connect symbolism, emotions and sculptural form. These are not just accessories, but stories cast in metal.
MRSJ is an independent Czech brand with roots in Prague and creative energy drawn from sunny and peaceful Barcelona. Our collections are a fusion of cultures, memories and natural structures.
An entire collection is dedicated to supporting Hospic Ondrášek, helping bring dignity and comfort to those in need. Every piece in this line carries a quiet message of light and care.
Our gold-plated surgical steel pieces are crafted to last — water-resistant, hypoallergenic, and perfect for everyday wear, no matter your rhythm.
Founded in 2020 by Martina Rozenberg Smira, MRSJ is a Prague-Barcelona-based artisan jewelry brand that draws its essence from the unique energy of these two vibrant cities. This combination of influences is deeply embedded in each collection, creating special pieces of jewelry that reflect the spirit of both places.
Each piece in the MRSJ collection is crafted with the intention of bringing strength, confidence, and style to its wearer. Inspired by a powerful energy, MRSJ jewelry aims to fill a missing piece within the soul, becoming a personal talisman for those who wear it. Our collections range from delicate, understated designs to bold, chunky statement pieces, catering to a variety of styles and occasions.
Every MRSJ piece is carefully designed by Martina, drawing inspiration from the people and experiences that shape her life. From inception, MRSJ has focused on small, thoughtfully curated collection drops, offering timeless creations that transcend seasonal trends and deadlines.
My passion is jewelry making, and therefore I create some collections entirely by hand. However, for certain pieces, I collaborate with suppliers from Spain who meet my standards of quality and design. These items are labeled as 'Design selection'.
The entire amount from the special collection (excluding VAT and shipping) goes to help the Ondrášek hospice, which cares for sick children and adults.
If you are looking for a piece of jewelry that will reflect your personality, protect you, or simply bring you joy, you have come to the right place.
Check out our collections - and don't forget about the special charity collection, from which the entire amount, excluding VAT and shipping, goes to the Ondrášek hospice.
Thank you for being part of my journey - your support helps not only to create, but also to help where it is needed most.
Martina