Wahab Watkoh

20/09/2026

01/04/2026

💎 Carat vs. Karat — Know the Difference 💎

In the world of gemstones and precious metals, even the smallest detail matters. While they may sound similar, carat and karat represent two very different concepts:

🔹 Carat (ct) measures the weight of a gemstone — where precision defines value.
🔹 Karat (K) measures the purity of gold — where composition defines quality.

At the Gemmological Institute of Colombo (GIC), we believe that knowledge is as valuable as the gemstones themselves. By sharing accurate, industry-relevant insights, we empower traders, collectors, and enthusiasts to make informed decisions with confidence.

✨ From Earth to Evidence — GIC continues to bridge science and trust through education, advanced testing, and expertise.

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27/03/2026

Orange Sapphire good size best price!!!!

25/03/2026

19/03/2026

15/03/2026

12/03/2026

31/01/2026

emerald lab