Black opals are gemstones from the opal family of precious stones.
Most expensive precious stones in the world.
Black opal 9 500 per carat.
Above we featured the diamond as one of the most expensive gemstones and coming in at number 1 with a price tag of over 1 million per carat is the red diamond.
Check out these ten incredibly rare and insanely expensive gems below.
10 most expensive antiques ever sold at any auction in the world.
The exact worth of the red beryl is being debated but many experts have pointed out that these precious stones can reach up to 10 000 per carat at the moment.
However or perhaps surprisingly there are so many gemstones that are even more rare and in turn even more valuable.
Here is the top 10 list of most expensive gemstones in the world.