Category: Gem Market News

Taaffeite

Introduction Taaffeite, (pronounced TAH-fite), is a mineral species crystallizing in the hexagonal system with the formula Mg3Al8BeO16. It is often included on a list of the rarest gemstones in the world. For a period of time, only a handful of…

Gem Market Pulse – August 2016

Latest on Colored Stone Market Consumers remain cautious about spending on luxury goods, including jewelry, as the presidential campaign exploits antiestablishment angsts among America’s middle class. Gemworld’s Vice President Stuart Robertson reported in his last article in the GemGuide that the Las Vegas Show reflected…

Colored Stone Market

This past year revealed more signs that the industry is adjusting to the new dynamic that emerged as the economy recovered from the recession. Colored stone dealers are optimistic heading into the holiday season. Increasing…

Diamond Market

Vegas was all about fancy color diamonds. Demand for melee and single stones in color is strong. Colorless diamond prices are stable despite rising cost of rough. Manufacturers are angry at mining companies for the…

Diamond Market

Synthetic and treated diamond melee continues to plague the industry. Auctions continue to amaze with record prices on diamonds. Mixed US markets heading into the holidays. Belgium exports rise but US is third in world…

Diamond Market

Diamond markets remain soft among some uncertainty heading into new year. Overall prices declined by about 15% for one carat diamonds in 2011. DeBeers announces synthetic diamond tester for use with large parcels of melee. This…

Colored Stone Market

More encouraging signs for the North American gem and jewelry trade are surfacing this time in recent reports issued in Hong Kong and India. In each, market growth that is attributed to improving consumption in…

The Colors of Corundum

Transparent colored gemstones are loved for their beautiful colors. How they absorb the visible light that passes through them determines their color (Figure 1). The study of light absorption by materials is called spectroscopy. Because…