Turquoise Guide

Turquoise Overview
General introduction and key concepts of turquoise
Turquoise Types
Common types and categories of turquoise
Turquoise Best Practices
Recommended approaches and guidelines for turquoise
Turquoise Common Mistakes
Frequent errors to avoid with turquoise
Turquoise Quick Reference
Essential values and measurements for turquoise
Turquoise Comparison
Compare different options and variations of turquoise
Turquoise Standards
Industry standards and specifications for turquoise
Turquoise Safety
Safety considerations and precautions for turquoise
Turquoise Tools Required
Equipment and tools needed for turquoise
Turquoise FAQ
Frequently asked questions about turquoise
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About Turquoise

What this tool does

Jewelry tools convert between carats, grams, and millimeters, determine ring sizes across international standards, calculate gold purity (karat to fineness), evaluate the 4Cs of diamonds, and estimate metal density for casting.

Why use this tool

Jewelers and buyers need precise conversions. Knowing the exact gram weight of a 1.5-carat diamond, or the gold content in 18K vs. 14K, informs pricing and design decisions. These tools provide instant, accurate answers.

How it works

Carat-to-gram conversion uses the fixed ratio 1 ct = 0.2 g. Ring-size conversion maps circumference in mm to lettered or numbered systems (US, UK, EU, JP). Gold karat to fineness divides by 24 (18K = 75% gold).

Pro tip

Ring size varies with temperature and time of day. For the most accurate measurement, size the finger in the afternoon when hands are warmest and slightly swollen, not first thing in the morning.

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