Our devices are often used by jewelers, gemstone sellers and appraisers. We hear that many investors are considering investing in gemstones. How the values develop can be read from the Gemval, the so-called Dax of gemstones. It records the value development of a total of 26 different types of stone. The examples are impressive: from 2005 to 2013 alone, sapphires rose in value by 48 percent. Sapphires originating in Sri Lanka are particularly popular. In some years their value can grow by as much as 30 percent a year.
Emeralds are also enjoying increased demand. What very few people know: rare emeralds could be more expensive than diamonds. You have e.g. B. 2015 saw a price jump of around 20 to 25 percent. The increased demand is also noticed by jewelers. You often work with A.KRÜSS gemmological devices. Here we hear that the deep green colors of these stones are particularly popular. Inclusions do not decrease the value of these samaragds. On the contrary: collectors are looking for these stones. They are considered the fingerprints of nature, the technical term is “Jardin”. Diamonds still have to be “flawless”. Emeralds are also found in Europe. Emerald mines are located in Habach Valley in Austria and at Byrud Gård in Akershus, Norway. The Brazilian emeralds are particularly valuable because of their usually very intense green. The Bahia emerald is considered to be the largest gemstone on earth. It has a diameter of 1.3 meters and is reported to weigh 272 kilograms. As the most expensive gemstone, however, it must not be traded, it has never been for sale. Expert opinions on the value vary, with estimates ranging between $ 75 million and $ 400 million.
Lesser-known gemstones, such as the yellow-green peridot (96 percent) or the light-blue topaz (123 percent), recently caused even bigger price jumps. The blue tanzanite that adorns our home page is also very popular. Experts assume that the supply of tanzanite could be exhausted in the next 20 to 30 years. This means that this stone is considerably rarer than diamonds.
A ruby is a superlative in terms of value: the Burmese Sunrise Ruby, a ruby weighing 25.59 carats, was sold a few years ago at Sotheby’s in Geneva for around 30.3 million US dollars. The highest price ever paid for a ruby and also the highest price per carat.