Trine Lamm

ByLamm Diamonds was founded in 2017 by Trine Lamm.

Trine’s journey began with a dedicated pursuit of knowledge, as she graduated from the prestigious Gemological Institute of America (GIA) as a Graduate Gemologist. During her time at GIA, Trine immersed herself in an intensive study of diamonds, gemstones, and pearls, which entailed an in-depth understanding of their unique properties, characteristics, and value factors. 

After having graduated from GIA, Trine decided to expand her knowledge and expertise by enrolling in Jewellery Valuation at the National Association of Goldsmiths in London. During her studies, Trine delved into the fascinating world of appraisals, honing her skills in assessing the worth of precious items, from silver candelabras, antique brooches and tiaras, to unset diamonds. 

After completing her studies, and having gained valuable experience and knowledge within the market from having worked in the Antwerp Diamond District, Trine finally embarked on her entrepreneurial journey, transforming her passion into her livelihood and founding ByLamm.

Certificates and Diplomas

ByLamm Diamonds

ByLamm Diamonds is a Copenhagen-based Jewellery brand, that specialises in customised bespoke jewellery. At ByLamm, we believe that every piece of jewellery should be as unique as the individual wearing it. That’s why we offer our clients a one-to-one personalised experience, guiding them through the process of creating their own one-of-a-kind treasures.


Our commitment to excellence extends beyond the creation of stunning finished products. We understand that exceptional service is paramount, which is why we go above and beyond to ensure our clients’ satisfaction both during and after the sale. With founder Trine Lamm’s extensive education and experience in the industry, we are able to offer the best prices and provide unparalleled expertise.

Experience the joy of owning a bespoke piece that reflects your individuality and stands the test of time. At ByLamm, we combine exquisite craftsmanship, personalised attention, and unbeatable value to bring you an unforgettable journey in creating your own truly unique jewellery.

Dreaming of creating your own customised bespoke jewellery?

Together with your imagination and Trine’s professional guidance, you can bring your jewellery dreams to life, creating a one-of-a kind piece that you will cherish forever.