800 million-year-old diamond with 'gem-inside-a-gem' found in Siberia(1/3)

A unique "gem-inside-a-gem" diamond thought to be over 800 million years old has been found in Siberia. The "priceless" jewel weighs just 0.62 carats and is the first diamond of that nature to ever be found. Inside, a tiny nested diamond moves freely and has an estimated weight of 0.02 carats.(Photo/VCG)

A unique "gem-inside-a-gem" diamond thought to be over 800 million years old has been found in Siberia. The "priceless" jewel weighs just 0.62 carats and is the first diamond of that nature to ever be found. Inside, a tiny nested diamond moves freely and has an estimated weight of 0.02 carats.(Photo/VCG)

A unique "gem-inside-a-gem" diamond thought to be over 800 million years old has been found in Siberia. The "priceless" jewel weighs just 0.62 carats and is the first diamond of that nature to ever be found. Inside, a tiny nested diamond moves freely and has an estimated weight of 0.02 carats.(Photo/VCG)