Gold, Silver, & Platinum Dealers New York

Opal
Opal has been attributed with various qualities over the years, from bringing misfortune and hardship to the wearer to

Moss Agate/Mocha Stone
Moss agate (also called mocha stone) is a semi-precious gemstone formed from silicon dioxide.

Precious White Opal
White opal has a light base and can have a strong colour play.

Physical Properties of Gemstone Material
An understanding of the optical and physical properties of the material is a prerequisite to knowing the best ways of

Appraising Gemstones
When you are first presented with a tray of gemstones it is easy to feel dazzled and slightly overwhelmed, and to

Cutting to Order
Sometimes it's not possible to find what you want among available gemstones. You may have a design in mind that

Prehnite
Prehnite only fully reveals itself as a beautiful gemstone once it has been worked. The rough material hides its