Home
Back
Diamond Ratio Formula:
| From: | To: |
The diamond ratio is a measurement that compares the length and width of a diamond. It's calculated by dividing the length by the width, providing insight into the diamond's proportions and shape characteristics.
The calculator uses the diamond ratio formula:
Where:
Explanation: The ratio provides a numerical representation of how elongated or rounded a diamond appears, which is important for evaluating its cut quality and visual appeal.
Details: The diamond ratio is crucial for determining the optimal proportions of a diamond, affecting its brilliance, fire, and overall visual appearance. Different diamond shapes have ideal ratio ranges that maximize their beauty.
Tips: Enter accurate length and width measurements in millimeters. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is considered a good diamond ratio?
A: Ideal ratios vary by diamond shape. For example, round brilliants typically aim for 1.00-1.02, while oval diamonds often range between 1.30-1.50.
Q2: Does ratio affect diamond value?
A: Yes, diamonds with ratios within the ideal range for their shape typically command higher prices due to their superior proportions and visual appeal.
Q3: How do I measure diamond length and width accurately?
A: Use precision calipers to measure the longest point (length) and the widest point perpendicular to the length (width) in millimeters.
Q4: Can ratio be adjusted after a diamond is cut?
A: No, the ratio is determined during the cutting process and cannot be changed without recutting the diamond, which would result in weight loss.
Q5: Does ratio affect how large a diamond appears?
A: Yes, diamonds with higher length-to-width ratios often appear larger than diamonds of the same carat weight with lower ratios.