This may not be enough information but the only one I am aware of is the Ruby.
Garnets are red too.
The official state gem of New Jersey is the New Jersey red green crown agate. It is a type of agate that is known for its red and green colors. Additionally, New Jersey is known for its abundance of minerals such as magnetite, quartz, and calcite.
The price of Beryl can vary depending on the type and quality of the specimen. It can range from a few dollars per carat for lower quality stones to hundreds or even thousands of dollars per carat for high-quality gem-grade specimens.
Diamond is an allotrope of the element carbon, so may be classified as a mineral (it can be colored by elemental impurities). About 20% of all diamonds mined are gem-quality stones, leaving the remainder to be classified as industrial diamonds. Diamond is not an ore.
A diamond is a mineral, but it be called a "gem stone" if you want to be fancy. Stones are usually round, and is a very broad subject. It varies from very expensive to just a regular old by-the-sidewalk stone. I would say that the best description of a diamond is a crystal.
If you mean gem as in a great thing, then Youkon's known gem in potatoes. The mineral gem, however, is gold.
green blue red black yellow brownish light brownish
There are a number of gem stones that are red in color including ruby, garnet, amethyst, almandine, pyrope, and rubellite.
Stones that are rare, and look beautiful are considered Gems.
There are a number of purple stones - including amethysts. Rubies are generally shades of red. If the corundum is not red, it is called a sapphire. Purple/violet gem stones include amethyst, sugilite, charoite, tanzanite, iolite, and spinel.
diamonds or stones
it is used for gem stones.
over 50
typesof precious gem
A red gemstone is commonly referred to as a "red gem." Some of the most popular and well-known red gems include ruby, garnet, spinel, and tourmaline. Each of these stones has a unique color and set of properties that make them desirable for use in jewelry and other decorative items.
Getting good gem stones can be purchased on the internet, or by collectors. Jewelers are also likely to have great gem stones that one can use, depending on their preferences.
gems
Amethyst is the first that comes to mind (and perhaps the most popular) but you can get a variety of purple gem stones.