Al-Mithqal Company
Article

Your Smart Guide to Buying Gold: Understanding Karats

Published 17 July 2026

What is the difference between 18k, 21k and 24k? How do you choose the right piece for your budget?

What does karat mean?

Karat measures gold purity. 24k means 99.9% pure gold, 21k contains 87.5%, and 18k contains 75%.

Which is better for investment?

For pure investment we recommend 24k bullion; for daily wear, 21k balances value and durability.

Al-Nahrain's tip

Always ask for an authenticated invoice with a verification code — all our invoices carry a QR code verifiable instantly on our website.