Luck l Abundance l Confidence Wealth & Success. Grade A. Green Aventurine comforts, harmonizes, protects the heart, and can help attract love later in life. Tumbled Green Aventurine is good for working with the Heart Chakra and with the Water Elements. Green Aventurine is known as the good luck stone and is often used in rituals with green candles, or kept in cash boxes Aventurine a.k.a. the stone of opportunity. It is said to be one of the luckiest crystals. Aventurine is one of the most powerful crystals for good luck and wealth. This pretty green gem boosts your chances of winning. Zodiac: Aries Size: 0.75" to 1.5"