When Mars is retrograde, which is best gemstone to wear?

During Mars retrograde, it is generally thought that it is a good time to work on inner growth and self-improvement rather than focusing on external goals and achievements. Some gemstones that are associated with inner growth and self-improvement include amethyst, sodalite, and peridot. Red coral is related to mars which is Pisces' financial issue-related planet. If you can't afford coral gemstone then wear Carnelian Gemstone which is also called (Red Agate) and Red Aqeeq Gemstone. Wearing or carrying these gemstones may help to promote introspection and self-reflection during this time. It is always important to choose gemstones that resonate with you personally, as their energy and properties can be more effective when you are attracted to them.