Almandine garnets are more like the colour of red wine – red with a blue tint. Almandines are usually not expensive if the stones are small.
Spessartites go from a red-brown colour to an intense orange. The intense orange Spessartites are quite expensive and is often confused with hessonite.
Grossular Garnets, more commonly known as Tsavorites are a fiery electric emerald green colour. These are not usually found in large stones, usually under half a carat is most common. It is sourced in Kenya and Tanzania.
Hessonites are also known as the “cinnamon stone” for it’s orange-brown colour. They are easily confused with spessartite, but has a slight difference in chemical composition.
Demantoid garnets have a lemon yellow and green colour, with an intense diamond-like “fire”. Hence the name demantoid or “diamond like”. They are softer than other garnets (about 6,5-7 on the hardness scale) and are more valuable. It is quite rare to find large demantoid stones. They are often confused with emeralds, but it’s fire is a distinguishing factor. It is not a popular stone, possibly because it is not a well-liked colour. Most people would choose a peridot or the green tsavorite over a demantoid. Demantoid gemstones come from Namibia and Russia.