Lucky Best Friends Ying Yang White Snowflake Quartz Black Agate Hearts Gems Pendant Necklaces Best Amulets Collection. Lucky Best Friends Ying Yang White Snowflake Quartz and Black Agate Hearts Gems Friendship NecklacesLucky Best Friends Ying Yang White Snowflake Quartz Black Agate Hearts Gems Pendant Necklaces Comes in Natural White Snowflake Quartz Heart and Black Agate Puffy Heart Gemstones Size: Each Gemstone Heart is 30mm (1 1/4 inches) Each Heart comes with Adjustable Cord Necklace, Shortest: 15 inches, Longest: 24 inches Comes with Branded Packaging