Is onyx better then a ruby?

Whether onyx is better than ruby depends on the context. Onyx is a semi-precious stone known for its striking black and white bands, often used in decorative items and jewelry, while ruby is a precious gemstone valued for its rich red color and rarity. Rubies are generally more expensive and sought after in the jewelry market due to their durability and historical significance. Ultimately, the preference for one over the other depends on individual taste and the intended use.