Rubies are part of the resilient corundum group. On a scale of 1 to 10 (10 being the hardest), ruby rates 9 in terms of durability. Only diamonds are harder than rubies. You can find gorgeous rubies in pink, crimson red, or orange-red. All rubies stimulate the heart chakra, encouraging nurturing, love, nobility, bravery, health, knowledge, and wealth. Fine rubies are associated with royalty, enlightenment and purity, and can be passed down from one generation to the next.
Especially recommended for: Cancer, Leo, Scorpio, Sagittarius
(adapted from Love Is In the Earth: A Kaleidoscope of Crystals by Melody)