Diamond is associated with the Lion sign, ruled by Sun. It instils energies and support to health, relieving nervous stress and cleasing our organism of too many toxins.

Diamond owes its name to its hardness in Greek "adamas" means indomitable. It's for sure the gem presenting exceptionally beautiful optic effects and for this reason is considered the Queen of the gems

Ruby owes its name to its red colour from the latin "rubeus". Ruby is a variety of corundum. Its colour is often irregular and can be better distibuted by means of a thermal process. Inclusions are frequent. They don't lessen the quality: on the contrary they prove the naturalness of the gem.

Ruby is associated to the Scorpio sign, ruled by Pluto.It protects you from all negativities, physical injuries and diseases.

Emerald is associated to the Taurus sign, ruled by Venus. It prefers green colour, and what's more it'll bring you love, balance and understanding. It's also useful in healing sight problems.

. Emerald comes from the grek " smaragdus ". It belongs to the beryl species. Its green colour is incomparable, that's why the word emerald green is also used outside of Mineralogy. Like ruby it presents inclusions "only the best quality is trasparent". They are not considered faults ( providing they are not many ), but always prove the naturalness of the gem.

Sapphire comes from the greek " saffeiros" which means blue. Its fluorescence is not the same for all varieties. It dipendes much on the colour and the field of origin.

Sapphire is associated to the Virgo sign, ruled by Mercury. It helps to direct energies and love to anyone who needs them.

Aquamarine is associated with the Pisces sign, ruled by Neptune. This sign prefers anyway the blue stones. They increase its vital force.

Aquamarine also is a variety of beril. Its name is due to its "water blue colour". The most precious quality has deep blue colour, is a very fragile but unlike the emerald, it has more regular distribution of the colour.

The name Opal comes probably from the sanskrit "upalas" precious stone. Opals are divided into three groups: the Noble Opals with their typical plays of colour, the Opal of Fire red and yellow in colour, and the Common Opals very common because they are usually opaque and without any plays of colour.

Opal is associated with the Cancer sign and is ruled by Moon. It prefers all white colours. Their function is to soften, calm and bring balance.