Heavier gauge in a gold cable chain means more gold, not just more chain. Weight is directly proportional to gauge and metal density, so the size of the link is a direct signal of the material value you are actually buying.
Stone Story
Ruby's Mohs hardness of 9 makes it second only to diamond in scratch resistance among natural gemstones. That durability translates directly to jewelry performance: ruby is suited for rings, bracelets, and any format exposed to daily contact without the surface degradation that affects softer stones. The hardness is a practical advantage that matches the stone's premium price.