Black Gemstones: Jade, Onyx, Jet and Chert

Black Jade is a dense, durable stone of protection and harmony, usually nephrite with subtle green or brown undertones.
Black Onyx is a sleek, glossy quartz known for its grounding energy and emotional strength, often dyed to achieve its deep black color.
Jet is fossilized wood, lightweight and warm to the touch, historically used in mourning jewelry and valued for its spiritual clarity.
Black Chert is a microcrystalline sedimentary stone with a matte or slightly waxy finish — less common in jewelry, but rich in ancient history and often mistaken for obsidian or flint.

Each has its own unique look, feel, and cultural significance — from the smooth sheen of onyx to the organic warmth of jet and the solid density of jade or chert. When choosing a black stone, consider not just the color — but the story behind it.