Yes, if the planets are friendly. Sun-Moon-Mars-Jupiter are generally compatible. Venus-Saturn-Mercury-Rahu-Ketu form another group. Never combine enemy planets' stones. Maximum 2-3 stones are usually recommended.
Gemstones FAQ
Yes, if the planets are friendly. Sun-Moon-Mars-Jupiter are generally compatible. Venus-Saturn-Mercury-Rahu-Ketu form another group. Never combine enemy planets' stones. Maximum 2-3 stones are usually recommended.