Manifesting® Unconditional Love Necklace Green Aventurine Donut with Clear Quartz Crystal Charm on 22 inch Black Cord Necklace. Associated with the Heart Chakra, Green Aventurine is the gemstone of unconditional love-the sweetest, purest, richest gift you can give to another, or to yourself! Gemstone Meanings: Used around the heart, Green Aventurine, the gemstone of unconditional love, is thought to clear negative emotions while gently bringing about a sense of calm, balance and happiness. Clear Quartz Crystals are believed to be powerful energy amplifiers and this charm is designed to "amp up" the energy of the stone it is paired with. It is also said to facilitate one's connection to divine energy.