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Calculating Diamond Weight By Measurement

Diamond Weight Formula:

\[ weight_{ct} = length \times width \times depth \times factor \]

mm
mm
mm
dimensionless

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1. What is Diamond Weight Calculation?

The diamond weight calculation estimates a diamond's carat weight based on its physical dimensions (length, width, depth) and a shape-specific factor. This method is commonly used for quick estimation before precise weighing.

2. How Does the Calculator Work?

The calculator uses the diamond weight formula:

\[ weight_{ct} = length \times width \times depth \times factor \]

Where:

Explanation: The formula accounts for the diamond's volume and density, with the factor adjusting for shape variations.

3. Importance of Diamond Weight

Details: Carat weight is one of the 4Cs of diamond quality and significantly affects a diamond's value. Accurate estimation helps in grading, pricing, and certification.

4. Using the Calculator

Tips: Measure the diamond's dimensions accurately in millimeters using calipers. The factor varies by cut (0.0061 for round, 0.0062 for princess, etc.). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: It provides a good estimate (±5-10%) but professional weighing is needed for exact carat weight.

Q2: What's the standard factor for round diamonds?
A: The standard factor for round brilliant cuts is approximately 0.0061.

Q3: Does this work for fancy shapes?
A: Yes, but each shape has its own factor. For example, princess cuts use about 0.0062.

Q4: Why measure in millimeters?
A: The diamond industry standard uses millimeters for precise dimensional measurements.

Q5: How does weight affect diamond value?
A: Diamond prices increase exponentially with carat weight, especially at "magic sizes" (0.5ct, 1ct, etc.).

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