Asterism: Star Gemstones

Asterism

Some of the most interesting members of the gem kingdom are those reflecting bright bands of light that form stars. This optical phenomenon is known as "Asterism". The term "Asterism" comes from the Greek word "aster", which means … [Read more...]

Largest Faceted Sapphire Up For Sale

ophirsapphrieweb thumb

The Guinness-certified world’s largest sapphire, weighing in at 31,308 cts is up for sale. The Ophir Collection of rare gemstones includes the Ophir Sapphire, which, at 31,308 carats, holds the distinction of being the world’s largest faceted sapphire. The collection consists of some 40 gemstones, the majority of which, … [Read more...]

Sapphire Ring Sets Auction Record

record sapphire THUMB

A 28.18 ct. exceptional platinum, Kashmir sapphire, and diamond ring sold for $5,093,000 at Sotheby’s New York on April 29. An anonymous buyer paid $180,731 per ct., a new auction record for price per carat for any sapphire. The sale was part of the Magnificent Jewels auction, in which total sales were $44,313,500. … [Read more...]