Final answer:
The value of a diamond is determined by the 4 (+1) C's: carat weight, clarity, color, cut, and certification.
Step-by-step explanation:
The value of a diamond is determined by the 4 (+1) C's: carat weight, clarity, color, cut, and the additional C called certification.
Carat weight refers to the size of the diamond. A larger carat weight usually means a higher value.
Clarity refers to the presence of blemishes or inclusions in the diamond. The fewer blemishes, the higher the clarity, and the higher the value.
Color refers to the presence of any color in the diamond. The less color, the higher the value.
Cut refers to the proportions and angles of the diamond. A well-cut diamond maximizes its brilliance and sparkle, increasing its value.
Certification refers to the grading report provided by a recognized gemological laboratory. A certified diamond has its quality and characteristics verified, increasing its value.