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GL Koru location window door where we are
Gl Koru Window Helsinki
About Us
High quality handmade jewellery for over 30 years  

GL-Koru was founded in 1988. 

Gad Leinson's concept has always been clear: to design and make individual, unique and high quality jewellery for people who understand and value traditional craftsmanship. 

Hundreds of gold and titanium items are on display in Gad’s traditional-looking goldsmith’s workshop in central Helsinki, ranging from engagement rings to men’s cufflinks, in a wide variety of surface treatments and shapes, designs from classic contemporary to the latest in modern jewelry trends.
Everything on display is for sale. But the pieces are also there to offer ideas and inspiration to customers.
Each piece we create is personal and one-of-a-kind.

Gad Leinson

Ever since he was a small boy Gad Leinson’s passion has been to build miniature models. Fired by this passion he always knew that he wanted to become a goldsmith by profession.

After school Gad became an apprentice at a goldsmith's workshop in Helsinki. Knowing exactly what he wanted  he set his sights to Israel, where the secrets of goldsmiths have been handed down from father to son for many generations.


He then studied intensively for one year in Jaffa. As a talented student, Gad made an impression and he was granted an apprenticeship to join the workshop of the world famous Viktor Naaman in Tel Aviv. Furthermore, as a result of Gad’s resilience, determination and steadfast studying he had the honour to be included in the team which designed and made a gift for Nancy Reagan.


After five years of employment Gad returned to Finland in order to start a business as a goldsmith in Helsinki. Gad Leinson is a pioneer in working with titanium. He came to understand titanium’s potential for beauty, design and durability very early on in his career.

Now in his fifties, Gad is a Nordic jeweler who is renowned for creating unique one-off pieces in Finland.

“I’ve always wanted to be free to focus on beauty, timeless design and quality. The experience gained over the years allows me to do this today.”


Gad Leinson portrait jeweller


GL-Koru is located in the centre of Helsinki 

Kalevankatu 9,  00100 Helsinki

Tel:  +358 50 345 46 48


Opening hours:

Monday-Thursday  10.30 am - 5.30 pm
Friday 10.30 am – 4.30 pm

If required, you can also visit us by appointment.

Open 19.12  at 10.30 - 14.00

Closed 24.12.2020  and open 4.1.2021

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