Indeed for some gems such as diamonds the price per carat can increase exponentially as the gem size increases. However rubies are also subjected to more treatments than almost any other gem. Rubies tend to have inclusions so color is. Vivid red a color known in the trade as pigeon s blood is the most valuable color. This means that good quality sapphires and rubies in larger sizes tend to have a much higher price per carat.
Therefore a 1 carat stone may cost 1 000 while a 2 carat stone may cost 4 000. The igs gem price guide covers commonly traded colored gemstones as well as more unusual collectible gems. Diamonds are harder than rubies scoring 10 on the mohs scale compared to 9 for rubies. Here you will find a comprehensive list of gemstones that we sell here on gem rock auctions. Below we ll list the value of gemstones in order and price per carat.
Instead the main factor that determines a ruby s beauty and value is its color. The value of gemstones in order. Among the natural gems only moissanite and diamond are harder with diamond having a mohs hardness of 10 0 and moissanite falling somewhere in between corundum ruby and diamond in hardness. Rubies have a hardness of 9 0 on the mohs scale of mineral hardness. The values listed below are based on a variety of sources including primary and secondary gemstone dealers jewelers miners and wholesale suppliers.
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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. This ruby stone weighs around 15 carats and cost about 18 3 million in 2015. Fine quality rubies are some of the most expensive gemstones with record prices over 1 000 000 per carat. A one carat untreated mozambique ruby with a dark color and close to eye clean can be had for around 4 500 from another retailer. Fine ruby is the rarest of all colored gems and burmese ruby has long been the premier investment gem.In the real world gem sizes do not determine weight. In today s market there are literally hundreds of gemstones to choose from. Keep in mind that these are loose estimates as all of the above features greatly influence each and every gemstone s value. Keep reading for a full comparison of gemstones by value from the top 5 precious gems to the cheapest gemstones. Fine unheated burmese rubies in larger sizes draw prices as high as 300 000 to 400 000 a carat at auction.
To keep it simple for d d i am keeping the weight of all gems the same and only vary the value depending on gemstone type and size. To keep it simple for d d i am keeping the weight of all gems the same and only vary the value depending on gemstone type and size. In the real world gem sizes do not determine weight. 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. Instead the main factor that determines a ruby s beauty and value is its color.
Fine unheated burmese rubies in larger sizes draw prices as high as 300 000 to 400 000 a carat at auction. Therefore a 1 carat stone may cost 1 000 while a 2 carat stone may cost 4 000. Indeed for some gems such as diamonds the price per carat can increase exponentially as the gem size increases.
