NEST Jewelry Long Dark Horn & Blue Agate Necklace Neiman Marcus Large Crescent Moon Necklace Etsy Blue Agate Crescent Moon Shape Double Horn NOT Drilled DIY Jewelry Black Horn Necklace Tusk Pendant Agate Gemstone Jewelry Sterling. Elevate your collection with this striking natural black agate crescent moon pendant, meticulously crafted as a one of a kind piece. Suspended from a luxurious 24 inch 60cm 18K gold plated metal high quality 1mm thick chain, this necklace seamlessly blends raw, bohemian aesthetics with refined elegance. Black agate has long been valued for its grounding properties, offering emotional stability and protection while fostering inner calm. Traditionally associated with the root chakra, this stone is believed to enhance courage, bolster self confidence, and shield against negative influences. Perfect for those seeking both spiritual significance and distinctive style, this long necklace with a striking horn half moon pendant transforms any ensemble with its bold, authentic character.