Category: Market Trends

Blue Star Sapphire

There has been a steady price increase observed in blue star sapphire market in recent years. Interestingly, the upward trend is caused by growing scarcity of the high quality sapphire in general and not a…

Imperial Topaz

It is stated in this colored stone market report that imperial topaz in the best quality is scarce and prices have gone up. What used to be a few hundred dollars per carat is now…

Spinel

The global gem market has seen the revival of spinel as a popular gem in recent years. Consumers are more aware of its beauty and rarity and recognize it as a gem in its own…

Garnet

The Tucson 2015 Gem Show demonstrated that there are considerably more options than just the big three (ruby, sapphire and emerald) for buyers seeking fine quality gemstones. The availability of bigger and higher quality garnets…

Diamond Cut Quality Trends

It was 1985 when we first started to report diamond prices in the GemGuide (1982 was the initial start of the publication, then known as The Guide, but did not include diamonds until later). Back…

Tanzanite vs. Sapphire

Although tanzanite does not directly compete against sapphire, consumers looking for blue do have a choice and the lower price of tanzanite can be very attractive. We refer to this as color substitution. When a…