Month: March 2018

Grandidierite

Grandidierite has been a rare collector’s stone since its discovery in Tuléar Province, Madagascar at the end of the 19th century. It is a nesosilicate with a chemical formula of (Mg,Fe)Al3(BO4)(SiO4)O and crystalizes in the…

Diamond Market 2018

Polished prices on the rise—slowly. Indian import duties not well-received. Antwerp diamond trade has a great start to 2018. DeBeers says the need to restock creating demand for diamonds in early part of the new year. Rio…

Collecting Engraved Gems

This text gives an overview of the characteristics associated with engraved gems, presented from the perspective of a collector. Furthermore, it demonstrates that gem collectors have always existed and enjoyed a variation of gems based on…