How is the grade of a gemstone determined?

The grade of a gemstone is determined by evaluating several key factors that contribute to its overall quality and desirability. Among these factors are color, size, clarity, and price. Each aspect plays a crucial role in establishing how a gemstone is perceived in terms of value and market appeal.

Color is one of the most significant attributes, as it affects a stone's beauty and rarity. The hue, saturation, and tone all influence how a gemstone is graded. Clarity refers to the presence of inclusions or blemishes that can affect a stone's brilliance and transparency, impacting its grading as well. Size, which encompasses carat weight, also contributes to a stone's value, as larger gems are generally rarer and more desirable.

Price is an important aspect in the overall grading process, as it reflects the market's perception of a gemstone’s worth based on supply and demand dynamics. Therefore, a comprehensive assessment that combines these factors provides a more accurate and holistic determination of a gemstone's grade, making it clear why this answer is correct.