FINE STONE is a term used to describe precious stones that are of high quality and value. The two most common examples of fine stones are JADE and GEM, which have 4 and 3 letters respectively. JADE is a mineral composed of sodium and aluminum silicate and is usually found in shades of green, white, and yellow. Gemstones are minerals or organic materials that are cut and polished for use in jewelry and other decorative items.