Encyclopedia
A reference for the characteristics that drive diamond pricing.
Certification & Lab Grading
How the major gemological laboratories grade diamonds, why the same nominal grade prices differently across labs, and which certificates the trade actually trusts.
Characteristics
The core quality factors — carat, cut, color, and clarity — that drive diamond pricing.
Natural vs Lab-Grown Diamonds
How laboratory-grown diamonds are made, why they are chemically identical to natural stones, and how the two markets have diverged into separate pricing economies.
Treatments
HPHT colour enhancement, laser drilling, fracture filling, irradiation, and coating — what each technique does, how to detect it, and why undisclosed treatments are the trade's largest unforced loss.