Carnelian is a translucent red or orange variety of chalcedony, sometimes banded red and orange like an agate. Once believed to benefit the wearer's health and love life. Most carnelian comes from Brazil, India, Siberia, and Germany.
Citrine is quartz generally occurring in a golden color. Citrine occurs naturally in Scotland and in the Ural Mountains of Russia. Much citrine available today is actually smoky quartz or amethyst that has been heat-treated to achieve its characteristic color.
Natural pearls are formed when an foreign object becomes trapped in the shell of an oyster or pearl and the animal surrounds the object with several mineral layers in order to protect its soft tissue. Most pearls sold today are farmed pearls, created by intentionally inserting small mother-of-pearl beads in the oyster's shell. The resulting pearls are harvested up to two years later. Pearls come in a range of pastel colors from cream to blue to pink, and irregularly shaped pearls are often called "baroque" pearls. Mabe pearls are hemispherical cultured pearls grown against the inside shell of an oyster rather than in the mollusk's body. Mabe pearls are typically used in settings such as that conceal their flat backs.
One of the four precious stones, rubies range from pink to deep red in color. They are mined in Southeast Asia and parts of Africa. Most natural rubies have inclusions or color imperfections.
Ruby is one of the four precious gemstones along with diamond, emerald, and sapphire. Rubies range in color from pink to blood red and are found around the world. Many gem quality rubies come from South and Southeast Asia.
Emerald is one of the four precious gemstones along with diamond, ruby and sapphire. It occurs in a range of green hues and is May’s birthstone.