3 Rows of Large Blue Coral Grade AAA with beautiful White Gold Plated Connector Clasp with CZ Paved Flower Clasp. Size of Blue Coral: 18x28mm Size:18-21inchs long. Weigh: 213 grams Blue coral (Heliopora coerulea) is considered rare because it is the only known octocoral that produces a massive skeleton, which is bright blue, and it is classified as a vulnerable species by the IUCN. While it can be locally common in parts of the Indo-Pacific, its specific ecological requirements and threat status make it uncommon globally. Key Facts About Blue Coral Rarity: *Unique Structure: It is the only octocoral (an eight-tentacled coral) with a skeleton made of fibrocrystalline aragonite. *Unique Color: Unlike most corals that have white skeletons, Heliopora coerulea has a distinct blue skeleton. *Vulnerable Species: Although it has survived for over 60–70 million years, it is listed as a vulnerable species, making it a rare find in healthy reef ecosystems. *Habitat: It lives only in specific tropical Indo-Pacific waters. Benefits of Blue Coral : Blue Coral offers protection and healing from the ravages of depression and anxiety. It is a phenomenal tool to use when working on connecting First Chakra and Throat Chakra, allowing us to freely communicate about our most basic and necessary physical and emotional needs.