Get the bespoke jewellery you have always dreamed of

I’ll help you through the entire process of creating your dream piece

Get my best advice for investing in diamonds

Bespoke Jewellery

Find more about custom-made jewellery

Diamond Grading

See the factors that determine a diamonds value


Learn more about how gemstones are graded

Timeless Classics

Enjoy our classic collection of timeless pieces

Let me help you find the diamonds
that you’ve always dreamt of.​

Whether you’re interested in custom-made jewelry, classic design or investing in diamonds, I’ll help you all the way. Want a unique piece of jewelry? A custom-made stone perfectly tailored to you? Ready to invest in diamonds? Or are you curious to learn more about diamonds, grading, cuts, colors, etc? Take a look around my website, and I’m sure you’ll find what you’re looking for.

Who’s ByLamm?

Hi, my name is Trine Lamm, and I run ByLamm Diamonds.
It would be an understatement to say that I’m passionate about diamonds, pearls, gemstones and jewelry. I absolutely live for it!

For most of my life, I’ve studied diamonds and gemstones.
I studied gemology at the Gemological Institute of America (GIA) and valuation at the National Association of Goldsmiths in London. I’ve worked with diamond dealers in Antwerp’s diamond district. I’ve spent countless hours studying rough diamonds and jewelry design…