In today s market there are literally hundreds of gemstones to choose from. Why does a reasonably nice 1 carat heated sapphire sell for 500 while a fine untreated 6 carat tourmaline goes for 250.
Our value charts are based on accurate and up to date information on average retail prices.
Price comparison of gemstones. The igs gem price guide covers commonly traded colored gemstones as well as more unusual collectible gems. The price for the same colored gemstones may vary from as little as 10 per carat upto even 10000 per carat depending upon the quality and several other factors. Burmese rubies command the highest price.
According to the international gem society clean top color gems command a retail price of 1 000 to 3 000 per carat. Here you will find a comprehensive list of gemstones that we sell here on gem rock auctions. Average retail prices dec 2020.
In the diamond world prices rarely are based on sound reasoning. For each gemstone we provide a detailed and comprehensive value chart which will help you evaluate its price based on the following criteria. Published quarterly antique cut diamond prices for old mine cut old european cut and rose cut michelsen gemstone index published quarterly diamond including colored diamond and colored stone prices michelsen rough diamond pricing guide.
The list of gemstones below will discuss the difference between a precious stone and a semi precious stone as well as guide you to where the gemstone treatments are discussed. Color carat weight clarity cut. Gemstone prices are puzzling even to many people in the gem trade.
Therefore a 1 carat stone may cost 1 000 while a 2 carat stone may cost 4 000. But the price difference betweenthe identical vs2 f and 1 carat and a 1 carat g vs2 is only 500. According to this formula a 1 carat stone may cost 1 000 while a 2 carat stone may cost 4 000.
Why is a clean untreated 10 carat amethyst only 60. There is no set price range for colored gemstones. Stones that are recut or even exported before cutting are worth more per carat than native cut rubies.
The values listed below are based on a variety of sources including primary and secondary gemstone dealers jewelers miners and wholesale suppliers. This means that good quality sapphires and rubies in larger sizes tend to have a much higher price per carat. The pricing process becomes emotional.
Rubies are a relatively rare gemstone. Not only are larger stones more expensive but gems cut in stock sizes known in the trade as calibrated sizes also tend to be more expensive. For instance the price difference between a diamond of vs2 clarity color h 1 carat and that of vs2 clarity color g 1 carat is 1000.
Indeed for some gems such as diamonds ruby and sapphire the price per carat can increase exponentially as the carat size increases. Idex online diamond price index published weekly online diamond prices only michael goldstein ltd.
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