(Conversion: 2.5cm = 25mm = approx. 1″ inch) Personalise this necklace with your choice of Add On birthstone or charm. Gemstone pendants are packaged in a lovely randomly chosen gift pouch with a description card, ready to give or keep for yourself! The most common colour of aventurine is green; it is used primarily at the heart chakra to activate and clear. Aventurine provides for balancing of the male/female energies, enhancing ones creativity, supplementing motivation in activities. It also reinforces ones decisiveness, amplifies ones leadership qualities and is a willing participant in instinctive action. It facilitates balancing and alignment of the intellectual, emotional, physical and auric bodies.