Gems are precious. They represent precious feelings or materials. Which meaning it represents in your dream is determined by the details of the dream.
Are the gems in a ring? That represents a relationship.
Is the gemstone in the ring gorgeous, did it change, or is it missing? This represents the actual state of the relationship.
Are the gems a part of a treasure? It represents wealth. Your feelings toward the treasure and the context of the treasure in the dream indicates your attempts to deal with wealth in real life.
