Rubies are the most precious of all the precious stones in the bible. Known as the "stone of love", it symbolizes passion like fire, the beauty, eternity and constancy of love. Ruby is the birthstone of July.

Diamond is a mineral made of carbon, the allotrope of carbon. Diamond is the hardest substance found in nature. It is a kind of elemental crystal composed of carbon element formed under high pressure and high temperature deep in the earth.

The name emerald comes from the old French "Esmeralde", which means green gem. Countless wonderful stories have been told around this magnificent emerald since ancient times.

A team led by Heitor Dimas Barbosa, a gem prospector, discovered the tourmaline Paraiba in Brazil after years of exploration and excavation. Colors range from green to blue.

Pearl is an ancient organic gem, which is mainly found in the mollusks of pearl shellfish and pearl-shell. It is composed of a large number of tiny aragonite crystals.

Sapphire symbolizes loyalty, constancy, love and honesty. Known as the "stone of destiny", starlight sapphires can bless the wearer's peace and are considered auspicious.