It's reasonable to expect lasting value and enjoyment when you purchase colored gemstone jewelry. Learning a few things about gemstone quality and value will help you make sure you get what you want – and deserve.
You can start by trusting your instincts. Sensory appeal is always paramount. So, if a particular gemstone or jewelry design "speaks" to you, by all means listen!
You can also use what you know about the 4Cs. The familiar diamond value factors of color, cut, clarity, and carat weight apply to colored gems as well. However, each gem variety is judged by its own potential: no one expects an aquamarine to have the same color as a sapphire or an emerald to be as flawless as an aquamarine. But there are a few general rules you can use to judge gemstone quality.
The Men's Manual to Buying Color
Build your Gemstone Wardrobe
Buying and Wearing Colored Gemstones
Colors and Shapes for All Seasons
Express Your Unique Style
Frequently Asked Questions
Gemstone Information Manual