Washington DC - Natural History Museum. The 167.97-carat Mackay Emerald was mined in Muzo, Colombia. It is the largest cut emerald in the National Gem Collection.
Invest Jewelry Resources on Antique Jewelry Investor include the following:
Gold prices are based on pure gold, 24 karats. Most Jewelry is 14 karat, 18 karat. That's why, gold jewelry, less than 24 karat is worth only a proportion of the 24 karat gold price.
A 14k gold necklace is valued at 58.5% of the 24 karat price of gold.
US Jewelry Marks 1922 - From the Jeweler's Index 1922 edition. This annual index by Keystone Publishing contained US jewelry marks and other reference material from the late 1800s to early 1900s.
French Audio Dictionary - French Terms with Definitions and Sound Files included in the Jewelry Resources. French Antique Jewelry is much sought after today.
New Jewelry Resources are being continually added to this page.