News Archive

Price Guides – Friend or Foe?

How convenient it is to use a price guide to retrieve prices for diamonds and colored stones. Merely adding a markup to determine a value seems too easy. Some gurus of valuation theory are emphatic that price guides should be banned. Other experts embrace price guides as a key part of the process.

Greenland Ruby

After more than a decade, Greenlandic ruby has entered the market in commercial quantities. The combination of affordable pricing and traceable sourcing meet the needs of the current market climate. The flux healing of the…

Rhodonite

INTRODUCTION Rhodonite is a mineral species, manganese inosilicate, with the formula MnSiO3. It often contains minor Ca and traces of Mg and Fe. The name rhodonite comes from the Greek for “rose” (rhodos), in allusion to…