In 2020 it s a blue diamond costing nearly 4 million per carat besting the previous holder a pink star diamond a 1 2 million per carat.
Most expensive ruby per carat.
Blue diamond 3 93 million per carat.
30 20 carat burmese ruby and diamond ring.
The cushion shape ruby is flanked by pear shaped diamonds weighing 2 00 and 2 02 carats respectively.
Other most expensive gemstones are as follows.
This comes after a 26 carat ruby named the sunrise ruby was sold off at 1 18 million per carat in 2015 in geneva.
Here is the top 10 list of most expensive gemstones in the world.
Until recently the magic 1 million per carat mark was only achieved by colored diamonds.
Alexandrite 12 000 per carat.
Rubies are now priced at about 1 18 million per carat placing them among the most expensive precious stones out there.
Tanzanite 1 200 per carat black opal 9 500 per carat red beryl 10 000 per carat musgravite 35 000 per carat alexandrite 70 000 per carat emerald 305 000 per carat ruby 1 18 million per carat pink diamond 1 19 million per carat jadeite 3 million per carat.
The price per carat increases rapidly when dealing with stones larger than 3 carat but at least they are on the market unlike benitoite for example.
You can expect to pay around 15 000 per carat for a top quality ruby larger than 1 carat.
Fine quality rubies are some of the most expensive gemstones with record prices over 1 000 000 per carat.
The most expensive type of ruby is called pigeon blood ruby and is a ruby with a slight purple hue.
Jadeite 20 000 per carat.
The most expensive gemstones in the world and the ones that are most often traded are diamonds sapphire and rubies.
With the sale of the sunrise ruby the beautiful red gemstone has joined the exclusive club.
However rubies are also subjected to more treatments than almost any other gem.
Its colors always red can reach vivid levels of saturation.
Emerald 305 000 per carat.
Price per carat comparison.