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Diamond Carat Formula:
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The diamond carat calculation estimates the weight of a diamond based on its physical dimensions and specific gravity. This method is commonly used by gemologists and jewelers to approximate carat weight without direct weighing.
The calculator uses the diamond carat formula:
Where:
For Rough Diamonds: Additional cut factor division (1.9-2.5) is applied to account for material loss during cutting and polishing.
Details: Accurate carat weight estimation is crucial for diamond valuation, pricing, and certification. It helps in determining the approximate value before actual weighing and provides insight into diamond proportions.
Tips: Enter precise measurements in millimeters, use specific gravity 3.52 for standard diamonds, and select the appropriate diamond type (polished or rough). All measurements must be greater than zero.
Q1: Why is specific gravity important in carat calculation?
A: Specific gravity accounts for the density of the material. Diamond has a specific gravity of 3.52, which distinguishes it from other gemstones and affects weight calculation.
Q2: What is the cut factor for rough diamonds?
A: The cut factor ranges from 1.9 to 2.5 and represents the ratio of rough diamond weight to finished diamond weight, accounting for material loss during cutting.
Q3: How accurate is this calculation method?
A: This method provides a good estimate but may vary from actual weight due to diamond shape variations, inclusions, and cutting precision. Professional weighing is recommended for exact values.
Q4: Can this calculator be used for other gemstones?
A: Yes, by adjusting the specific gravity value. Different gemstones have different specific gravities (e.g., ruby: 4.00, sapphire: 4.00, emerald: 2.72).
Q5: What are typical diamond measurement ranges?
A: Common diamond sizes range from 1mm (approx. 0.005 carats) to 10mm (approx. 5 carats), though larger diamonds exist and require precise measurement.