LASOCKI KOSTERA

artisan jewelry studio

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About us

About us

Lasocki Kostera is a Warsaw jewelry studio born from a passion for stones and thoughtful design. We create our own collections, but bespoke commissions are at the heart of our work: jewelry made to measure, shaped around the person, their story, and the occasion.

The studio was founded by two international experts with more than 20 years in the jewelry trade. We combine craftsmanship, gemmology, and a personal approach so that every piece is unique and refined in detail.

We welcome you to our studio at Krucza 47A in Warsaw.

“My interest in jewelry started early — as a child I devoured adventure stories where treasure meant gemstones and fine jewelry. That curiosity became a passion, and with it came my greatest love: my wife, daughter of a well-known Warsaw jeweler.

Together with Ania and Krzysiek we opened our first shop; I began studying gemmology and learned the secrets of diamonds and the jeweler’s craft. In the mid-1990s I graduated from the Idar-Oberstein gemmological institute in Germany as an international diamond expert. Over 30 years I built several jewelry businesses, always bringing exceptional pieces to Polish clients. When my last company grew to 120 people, I realized I missed personal conversations, design, and working with stones.

Today I invite you to a place where, over a cup of coffee, we can talk about jewelry and create something unique together.”

Jakub Lasocki

“Confucius said: choose a job you love and you will never work a day in your life. My journey began in the late 1990s in a jewelry store — I was fascinated by beautiful jewelry and precious stones. I saw the full process from design and materials to the finished piece and the client’s delight.

Step by step I learned from goldsmiths and trained in diamonds, colored stones, pearls, and coins. I completed the HRD diamond course in Belgium in 2009 with an international expert certificate. With Kuba we built brands, opened stores, and a modern workshop; we visited the world’s largest trade fairs.

Then we decided to return to direct contact with clients. That is how Lasocki Kostera studio was born — a place to meet, talk, and turn ideas into extraordinary jewelry. At Krucza 47A we pursue our passion and are happy to share it over good coffee.”

Krzysztof Kostera