Lab grown diamonds are physically and chemically completely identical to natural diamonds. Unlike diamond substitutes, lab grown diamonds are made of the exact same crystallised carbon as natural ones.

Lab grown diamonds are made under conditions that require no harmful extraction of diamonds from the earth. Lab grown diamonds are real diamonds that are optically, physically, and chemically identical to their mined counterparts. A trained gemologist could only tell the difference using a specialised machine.

Lab grown diamonds are not perfect and appear in the same raw form as natural ones, meaning they need to be cut and polished in order to reach their final form. 

Yes. Lab grown diamonds are classified in the same way as natural diamonds and show differences in color and clarity. Our stones are always color E-F, with clarity VS+, with IGI/HRD (International Gemological Institute / Hoge Raad voor Diamant) certificates provided starting from carat weight 0.50.

You can either get a free ring sizer from us by clicking here, or you can read our size guide in order to find out your ring size from home.

Absolutely! We also offer carat sizes above 3.00 ct. Please feel free to reach out to us at office@lmstudio-jewellery.com for further inquiries.

Our pieces are made to order by our master goldsmith, with a production time of 4-6 weeks. If the item is in stock, it will ship within 5 business days. You can view the delivery time on the product page after selecting the gold color and size.

For our classic engagement rings, we offer a free size adjustment for up to 2 sizes bigger or smaller within 6 weeks of receiving the ring (sample sale rings excluded). Simply email us at office@lmstudio-jewellery.com to begin the adjustment process.

Please note: Eternity rings cannot be resized. If you need a different size, the ring must be returned within the 14 day exchange period and remade in the correct size.

We accept returns in exchange for a full refund within 14 days of receiving the product. Within Europe, we can provide you with a free return shipping label.

Find out more about this on our ‘Returns’ page.

Yes, all of our pieces come with a 2 year warranty which covers manufacturing defects. This does not include damage due to wear & tear or improper cleaning. For more information see our terms & conditions.

Soak your pieces in warm soapy water for a few minutes, then gently brush it with a soft toothbrush. Finally rinse your piece with clean lukewarm water and dry it off. Click here for our care instructions.

Yes, we have an atelier in Berlin. You can book an appointment through our ‘Contact Us’ page or by clicking here. We also offer virtual consultations if you can't visit us in person.