Amethyst is known to calm overthinking mind, let go of negative thoughts and patterns. It is a fantastic stone for stress and anxiety as well as  grief as it helps you see a bogger picture, rise above it all and let go of anything that holds you back. Amethyst is very healing on all levels and can aid you with emotional, mental and physical woulnds and issuues.
Amethyst is linked to Third Eye and Crown Chakras that stand for psychic gifts and skills, higher conscioussness and spirituality, inner wisdom and guidance as well as innate intuition.
Rose Quartz is Heart Chakra stone and helps soothe emotional body, calm you down and show you what universal unconditional love is about.