The monochrome style of black and white, as seen here contrasting onyx and sterling silver jewelry, is a classic look that is a timeless dependable in the world of fashion Celtic knots in sterling silver jewelry represent eternity and unity in forces like Earth Wind and Fire Silvershake Created Black Onyx 925 Sterling Silver Triquetra Celtic Knot Pendant with 18 Inch Chain Necklace, is shipped with anti-tarnish protection in reinforced gift boxes & satin-style pouches; guarantee far-outlasting competitors Created gems are simulated not synthetic; they make excellent and very affordable alternatives, they are not mined, have a smaller carbon footprint and are more environmentally friendly Silvershake Created Black Onyx 925 Sterling Silver Triquetra Celtic Knot Pendant with 18 Inch Chain Necklace