International Diamond Credibility
IGI Certified Diamonds at Topco Zamzam
Every solitaire and diamond ornament at Topco Zamzam is independently graded by the International Gemological Institute (IGI).
The 4 Cs of IGI Diamond Certification
When purchasing diamonds at Topco Zamzam Jewellery, you receive a tamper-proof IGI certificate detailing the exact scientific analysis of your stone.
Cut
Determines brilliance and light refraction from Excellent to Very Good.
Color
Graded from D (colorless perfection) to near-colorless spectrums.
Clarity
Evaluates natural internal characteristics from VVS1 to VS2 clarity.
Carat
Precise carat weight measurement recorded on official dossier.