Diamond Jewellery Buying Guide Apr 2026

: Often considered the most important "C," cut determines how well a diamond sparkles. An "Excellent" or "Ideal" cut can make a diamond look larger and more brilliant.

: Diamonds are graded from D (colorless) to Z (light yellow). For the best value, consider "near-colorless" grades like G or H, which look white to the naked eye but cost less than D-F grades. diamond jewellery buying guide

Created by the Gemological Institute of America (GIA) , these four factors determine a diamond's quality and price: : Often considered the most important "C," cut