About the Store    |    Jewelry & Gemstones

Jewelry & Gemstones

• Allergies to Jewelry
• Anniversary List
• Birthstones by Month
• Care of Diamond Rings
• Cleaning of Diamond Rings
• Cleaning Jewelry
• Density of Gold and Other Metals
• Dispersion - "Fire" in Gemstones
• Gold Allows - What is a Carat?
• Hardness of Different Gold Alloys
• Ring Finger Sizing - General Advice
• Ring Finger Sizes - International Conversion Chart
• What is Pink Gold?
• What is white gold and where does it come from?
• Why does jewelry turn skin black?
• Why does white gold turn yellow?
• Zodiac Signs & Stones
• Jewelry
• Jewelry Buyer's Checklist
• Jeweler's Directory/Buyer's Guide


• Diamonds
• Diamond Grading and GIA Style
• About the 4Cs
• How to Buy a Diamond


• Gemstones
• Colored Stone Grading Information
• How to Buy a Gemstone
• American Gem Trade Association (AGTA)
• AGTA Gemstone Information Manual

Gold Allows - What is a Carat?
When it is a unit of weight don't confuse the word "carat" as only used for diamonds or other gemstones. A carat is applied to gold alloys to explaing the proportion by weight of one part in twenty-four, or 41.66 parts perr 1000. The higher the carat value, the higher the proportion of gold in relation to the base metal content. Pure gold is therefore 24 carat.