1. What is Diamond Carat Weight?

Carat weight is a measurement of a diamond's weight, where 1 carat equals 200 milligrams. For round brilliant cut diamonds, carat weight can be estimated from the diamond's dimensions.

2. How Does the Calculator Work?

The calculator uses the standard formula for round diamonds:

Where:

• \( Diameter \) — Diamond's width in millimeters (mm)
• \( Depth \) — Diamond's height in millimeters (mm)
• 0.0061 — Conversion factor for round diamonds

Explanation: The formula calculates the volume of the diamond and converts it to carat weight using a standard density factor.

3. Importance of Carat Calculation

Details: Carat weight significantly affects a diamond's value. Estimating carat from dimensions helps in assessing diamonds, especially when precise weighing isn't possible.

4. Using the Calculator

Tips: Enter diameter and depth in millimeters. Both values must be positive numbers. Measurements should be taken with precise calipers for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: Is this formula accurate for all diamond shapes?
A: No, this formula is specifically for round brilliant cut diamonds. Other shapes have different calculation methods.

Q2: How precise is this calculation?
A: The calculation is typically within ±5% of the actual weight, assuming precise measurements.

Q3: Why does depth affect carat weight?
A: Depth represents the diamond's height, which contributes to its overall volume and therefore its weight.

Q4: Can I use this for other gemstones?
A: This formula is diamond-specific. Other gemstones have different densities and would require different conversion factors.

Q5: What's the relationship between carat and diamond size?
A: While carat measures weight, it correlates with size. However, cut proportions can make diamonds of the same carat weight appear different in size.