Loose diamonds and diamond rings including a round solitaire engagement ring, a fancy yellow radiant-cut diamond, and a marquise-cut pavé ring

Verified in Stockholm

Find the right diamond.
Create the piece around it.

Explore thousands of natural, lab-grown and coloured diamonds, certified by GIA, IGI or GCAL, and physically reviewed by our trained gemologist in Stockholm before dispatch. Buy your diamond loose, or let us create a ring around it.

Rated 4.7/5 on Trustpilot
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EU VAT included
No import duties within the EU
15-day returns

Verified in Stockholm

Every diamond is physically reviewed by our trained gemologist before dispatch.

Transparent European pricing

EU VAT included, with no surprise import charges within the EU.

Global certified selection

Access thousands of GIA, IGI or GCAL certified natural, lab-grown and coloured diamonds.

Made around your diamond

Purchase your diamond loose or have us create a custom ring around it.

Recently verified in Stockholm

Selection of certified Diamonds

Diamonds recently verified by our gemologist for clients across Europe.

7.35 carat pear cut diamond

Color F, Clarity VVS2, IGI certified

1.53 carat marquise cut diamond

Color Fancy Intense Yellow, Clarity VVS2, IGI Certified

2.55 carat pear cut diamond

Color Fancy vivid pinkish orange, VVS2, IGI certified

2.07 carat oval cut diamond

Color D, clarity grade VVS1, IGI certified

3.23 carat emerald cut diamond

Color E, Clarity grade IF, IGI Certified

4.23 carat marquise cut diamond

Color F, Clarity grade VVS2, IGI Certified

Shop loose diamonds

Find the perfect diamond, with expert guidance.

Browse all diamonds

Create custom jewellery

We'll craft meaningful pieces, made around you.

Explore all rings

GEMOLOGIST-LED. EDUCATION FIRST.

A more transparent and personal way to buy diamonds.

Carateu was founded by Raiha Buchanan and David Hansson to bring a more transparent and personal approach to buying certified diamonds and fine jewellery in Europe.

Drawing on backgrounds in gemology, regulated industries and building trusted businesses, we created Carateu around the principles we believe matter most: independent expertise, transparent pricing and personal guidance from enquiry to delivery.

Every certified diamond is independently reviewed by a trained gemologist in Stockholm before it reaches you.

Meet Raiha and David
Independently reviewed by a trained gemologist
Educational content across Instagram and guides
Personal guidance via chat, email or WhatsApp