Carat Weight: Measures the size of the diamond. One carat equals 200 milligrams. Larger diamonds are rarer and more expensive, but carat weight alone doesn't determine the value.

Cut: Refers to how well the diamond has been shaped and faceted. It affects how the diamond reflects light, which impacts its sparkle. A well-cut diamond shines brightly, while a poor cut may appear dull,even if the diamond is large.

Color: Ranges from D (colorless) to Z(light yellow or brown). The less color,the higher the value. Colorless diamonds are the most sought after,while those with noticeable yellow or brown tints are less valuable.

Clarity: Indicates the presence of imperfections or "blemishes." These can be internal (inclusions) or external (blemishes). The fewer the imperfections, the higher the clarity grade and the more valuable the diamond.