These are old terms and not necessarily true these days.
Most common precious stones.
The deepness of color increases the value of this gemstone.
10 most valuable gemstones in the world.
Demantoid is a remarkable green variety of andradite garnet that was discovered in the mid 1800s in russia.
Its colors always red can reach vivid levels of saturation.
Other important factors include size grade and color.
That s a factor that significantly impacts their value of them.
These gemstones made it to the list because they have the highest prices per carat.
Desired colors and its sturdiness coupled with abundance and available make topaz one of the most popular gemstones.
One of the most popular traditional jewelry stones ruby is exceptionally durable.
Fine quality rubies are some of the most expensive gemstones with record prices over 1 000 000 per carat.
The other popular ones are the orange reed and dark pinkish red colors.
List of precious and semi precious stones.
With over 130 gem varieties our gemstone index will help you find the perfect colored stone for your jewelry crystal healing needs.
Gemselect s list of precious semi precious gemstones.
Golden orange yellow types are the most common topaz.
Guide to precious semi precious color gemstones.
Harry taylor getty images.
All other gemstones are considered as being semi precious stones.
To view the treatments associated with each of these stones visit our technical information on gemstones page.
They go by the name imperial topaz.