Chrysoprase is a semi-precious stone and a green variety of chalcedony, which is part of the Quartz group and one of the more valuable stones within the group.

The colour of Chrysoprase can vary but only varied between different shades of green; from a light green colour to a much deeper green. In general, the deep green colours are more desired. However, if the colour becomes too dark, then the gemstone is no longer identified as Chrysoprase, but rather as another variety of Chalcedony, known as Prase.

Chrysoprase can be easily identified through its chalcedony quartz properties and by its distinct light-green to apple-green color.
Although the colour of Chrysoprase can fade when heated and in sunlight, it can still be easily identified through its chalcedony quartz characteristics and usually by its distinct light-green to apple-green color.

Chrysoprase has a hardness of 6.5 to 7 on the Mohs scale, making Jade, another gemstone with very a similar colour, much softer, and typically less translucent, easily distinguishable from chrysoprase.

Chrysoprase, joint with Emerald, is the birthstone for those born in the month of May. It is a semi-precious gemstone known for its symbolism of empathy, growth, love, and forgiveness. Its also known for its ability to attract new love, abundance, prosperity.

Chrysoprase is considered to be an extremely beneficial gem for improving emotional health as it represents joy and happiness, and it heals the negative energy that comes with depression and anxiety.

The Ancient Greeks said that both emerald and chrysoprase was the sacred stone of Aphrodite as green was the Goddesses sacred colour.