1. What is Carat Weight?

Carat weight is the standard unit of measurement for gemstones, where 1 carat equals 200 milligrams. It's a crucial factor in determining a gemstone's value along with its cut, color, and clarity.

2. How Does the Calculator Work?

The calculator uses the carat weight formula:

Where:

• \( Volume \) — Gemstone volume in cubic centimeters (cm³)
• \( Density \) — Gemstone density in grams per cubic centimeter (g/cm³)
• \( 0.2 \) — Conversion factor to convert grams to carats (1 carat = 0.2 grams)

Explanation: The formula calculates the weight in grams from volume and density, then converts it to carats.

3. Importance of Carat Calculation

Details: Accurate carat weight estimation is essential for gemstone valuation, setting prices, and jewelry design. It helps in comparing stones of similar quality.

4. Using the Calculator

Tips: Enter volume in cm³ (length × width × height for rectangular stones) and density in g/cm³ (specific to gemstone type). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between carat and karat?
A: Carat (ct) measures gemstone weight, while karat (K) measures gold purity (24K being pure gold).

Q2: How do I measure gemstone volume?
A: For regular shapes, use geometric formulas. For irregular shapes, use water displacement method.

Q3: Where can I find density values for different gemstones?
A: Gemological references provide density tables (e.g., diamond: ~3.52 g/cm³, sapphire: ~4.00 g/cm³).

Q4: Why is 0.2 used in the formula?
A: This converts grams to carats since 1 carat = 0.2 grams by definition.

Q5: Does cut affect carat weight?
A: Yes, deeper cuts retain more weight while shallow cuts appear larger but weigh less.