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Diamond Weight Formula:
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The diamond weight formula estimates a diamond's carat weight based on its dimensions (length, width, depth) and a shape-specific factor. This calculation is particularly useful for estimating weight when direct measurement isn't possible.
The calculator uses the diamond weight formula:
Where:
Explanation: The formula accounts for the diamond's volume and shape characteristics to estimate its weight in carats.
Details: Accurate diamond measurements are crucial for valuation, certification, and setting design. The carat weight significantly affects a diamond's value and price.
Tips: Measure the diamond's length, width, and depth in millimeters using precise calipers. Select the appropriate shape factor from the dropdown menu. All values must be positive numbers.
Q1: How accurate is this calculation?
A: The formula provides a good estimate (±5-10%) but professional measurement is needed for exact weight, especially for certified diamonds.
Q2: Why do different shapes have different factors?
A: Different shapes distribute their mass differently. For example, round diamonds are more dense than marquise cuts of the same dimensions.
Q3: Should I measure the diamond mounted or unmounted?
A: For most accurate results, measure the diamond unmounted. If mounted, be careful to measure only the diamond, not the setting.
Q4: What if my diamond isn't perfectly symmetrical?
A: For asymmetrical stones, take multiple measurements and use averages. The calculation assumes reasonable symmetry.
Q5: Can this be used for other gemstones?
A: No, this calculator is specifically for diamonds. Other gemstones have different specific gravities and would require different factors.