Gemstones

Our gemstones

For each stone: the mineral family, composition, colors, hardness and birthstone month. Tap a stone to see its details.

Precious stones

Diamond, ruby, sapphire and emerald: the four stones that tradition calls precious.

Colored gemstones

Transparent stones in every color, faceted or cut as cabochons. In everyday language they are among the so-called “semi-precious” stones.

Hardstones

Opaque or translucent stones, worked as cabochons, inlays and carvings: a long Florentine tradition. They too are often called “semi-precious”.

Organic gems

Born from living organisms: pearl and coral from the sea, amber from ancient trees.

Colored gemstones and hardstones are often called “semi-precious”. International trade rules consider this term misleading and recommend not using it: the value of a gem depends on its qualities, not on its group, and some colored gemstones are worth more than many precious stones. Stone colors and drawings are indicative.