Garnet is red, the color attribute is fire, and fire is gram gold, which is not good for gold.
You are short of water and gold, which must be a sign of cowardice.
Therefore, if you are short of gold, it is more appropriate to wear metal ornaments, such as gold, silver, platinum and even copper and iron. Colors are suitable for yellow and white.
You can also consider Jin Fajing (three attributes of earth, gold and water), topaz, white scorpion and so on.
Of course, it is reasonable to consider suitable ornaments from the five elements, but it is not sure whether their influence on people is as great as imagined.
I hope my answer can help you.