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Diopside can be colorless but it most often a bottle green, brownish green or light green. Bright green diopside is commonly known as chrome diopside because of its chromium content. A rare blue variety known as violan may be found in Italy.

Ferberite is an iron-rich mineral commonly seen as a black to dark gray prism-shape specimens with metallic luster. At times it can exhibit weak magnetism and should not be confused with hematite.

One of the most coveted varieties of chalcedony quartz, chrysoprase is prized for its apple green color and rarity. Chrysoprase's name comes from the Greek words chrysos meaning “gold,” and prason meaning “leek,” due to its color similarities with the vegetable.

“Anyolite” comes from the from the Masai word anyoli, meaning "green." It is also known as ruby in zoisite. It is a translucent to opaque rock composed of ruby crystals, green zoisite and black or very dark green pargasite. It is used for cabochons and decorative objects. It was first discovered in 1954 at the Mundarara Mine, near Longido, Tanzania. It has also been found in the Muriatata Hills, Kilimanjaro Region, Tanzania.

Amblygonite is quite possibly one of the most beautiful pastel colored gemstones that you may have never heard about. It belongs to a class of minerals known as phosphates and forms a solid-solution series with montebrasite. Industrial grade amblygonite isn't that rare; however, when it comes to facet grade material, it quickly moves up on the hard-to-find list. Colors for amblygonite include pale yellow to greenish yellow and various shades of green to blue. On rare occasions, pink to light purple specimens may be found. Colorless material also is available.

Tiger iron is a rock that is made up of tiger's eye quartz, black hematite and red jasper. These minerals create contrasting bands of color for a truly unique look popularly used for many sorts of ornamentation and decoration.

In 1996 a German company started marketing Japanese Freshwater Pearls as Kasumiga Pearls. The average size of these are between 10mm to 15mm but can grow up to 20mm. Kasumiga Pearls are known for their excellent color and luster. The most valuable pearls are round to near round but they also come in interesting baroque shapes.

Bayong is a hardwood tree from the Philippines. The wood is used to make beads and jewelry. The leaves can be woven into purses and baskets.

Onyx is the dark brown to black variety of agate, a cryptocrystalline quartz. Since ancient times onyx has afforded gem cutters and carvers an excellent source for carving cameos, intaglios, and other jewelry creations. Inexpensive, abundant, and available in large sizes, onyx is also a favored stone when fashioning cabochon gems and beads.

Iolite is the gem-quality blue or blue-violet variety of cordierite. While iolite enjoyed popularity in jewelry in 18th-century Europe, this naturally beautiful gemstone is relatively new to today's jewelry market, and is regaining popularity with the public. Because of its varying levels of hardness and strong pleochroism, iolite is one of the most difficult stones for lapidaries to fashion. It must be cut in certain directions to take advantage of the best color, which can be tough when the shape of the rough doesn't lend itself to cutting in that same direction.

Hematine is a hematite simulant sometimes called hemalyke, hemalike, or magnetic hematite. It was originally reported to be pressed and sintered iron oxide, but most material currently on the market is a ceramic-like material composed of barium-strontium ferrite. Hematine is highly magnetic, whereas hematite is not.

Faceted petalite gems and specimens are prized by gemstone and mineral collectors. Petalite's name is derived from the Greek petalos (leaf), referring to its perfect cleavage. Colorless material is common, and large crystals have been mined. Other petalite colors include white to yellow or gray, yellowish green to light green and pink. Crystals range from transparent to translucent and are prized for their good clarity. Faceted gems aren't often seen due to petalite's cleavage planes.