Good as Gold
Gold hit a record price of about $1,920 per ounce on global markets this past September. High gold prices have been the norm since they exceeded $1,000 per ounce in March 2008. How has this…
Gem Market NewsYellow Sapphire
Gemworld received this yellow stone for identification from a jeweler. Our first instinct was that the greenish yellow color was "unnatural." However, this color is rare but possible in nature and as always, full gemological…
Gem NotesA Mystery Diamond
Gemworld International, Inc. recently received an antique gold ring for appraisal. The ring is set with a cushion shape, transparent, brownish stone displaying very high luster and prominent fire, almost iridescent looking. It is surrounded…
Gem NotesFaux Pearls
This item came in for a quick valuation for sale as scrap along with several other items of gold and diamonds. When the jewelry is all of high quality and high value, one has a…
Gem NotesDiamond Market
A new era begins for the diamond industry as ownership of mines changes hands. Huge increases in prices in the first half of 2011 show no signs of any correction and remain high despite average…
Diamond MarketColored Stone Market
The jewelry holiday season started with better than expected results. In bridal jewelry, the trend is to use more color, specifically sapphire and ruby. Tanzanite is regaining popularity with renewed interest. Untreated corundum prices are…
Colored Stone MarketCanadian Gem Conference 2012
Dr. Jeffrey Post, Curator of the mineral collection at the Smithsonian Institute, was the ideal choice for the opening lecture. His stunning images of some of the incredible specimens housed at the Smithsonian were capable…
Gem Market NewsChanging Premiums in Unenhanced Ruby
Several factors have contributed to the rise in unenhanced ruby prices over the last decade. Worldwide demand has been high with the well-publicized surge in recent years from emerging markets such as China and India…
Market TrendsAndesine Debate Continues
In the last issue of the Gem Market News, we printed an article by Richard Hughes, titled Faith: In Search of the Lost Andesine Mines. Hughes is a respected author and gem expert who has…
Gem Market NewsOf Beryllium and Beefsteak
Diffusion in gemology can be defined as a method of artificially coloring gemstones, not unlike the dyeing of cloth. Diffusion is actually a very common process that we meet in many different contexts. The dying of natural…
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