It is a precious gemstone which occurs in blue, yellow, green etc. colours (mostly blue). It is a variety of Mineral Corundum. It costs $450-$1600 in 2024.
It is a precious gemstone which occurs in Pinkish Red to Blood-Red colour. It also comes under Mineral Corundum. It costs $4,625 in 2024.
It is also a precious gemstone which occurs in green colour. It comes under Mineral Beryl. It costs $50 to $1,000 per carat in 2024.
It is a carbon element and is so strong that it cannot be broken easily. It can be found in many colours, mostly colourless. It costs $9,502.13 in 2024
It is a precious gemstone which occurs in pale blue to light green in colour. It is a part of the beryl family. It costs $1,200+ in 2024.