This open heart necklace is crafted of .925 sterling silver with beautiful rhodium plating. Cascading down the side of this heart pendant are three hand-inlaid lab-created pink opals with small clear cubic zirconia stones set on the fancy bail. Most Opals used in Jewelry are grown in a lab or, “Lab Created”. Natural Opals are a soft stone and prone to cracking. Lab Created Opals are strong, more vibrant and have “Fire” and consistency to their coloration. Additional Details ------------------------------ Product description: This open heart necklace is crafted of .925 sterling silver with beautiful rhodium plating. Cascading down the side of this heart pendant are three hand-inlaid lab-created pink opals with small clear cubic zirconia stones set on the fancy bail. Most Opals used in Jewelry are grown in a lab or, “Lab Created”. Natural Opals are a soft stone and prone to cracking. Lab Created Opals are strong, more vibrant and have “Fire” and consistency to their coloration.