Unique Spider Black Diamond 18K Gold Brooch For Her For Sale at 1stDibs Spider Brooch with Rubies and Sapphires, 18K Rose Gold Large vintage spider brooch, gold tone For Sale at 1stDibs 18 Karat Gold and Silver Spider Brooch with Diamonds, Rubies, and. Central blue sapphire cabochon Brilliant cut crystal embellishments Articulated spider leg design Pin back closure Silver tone metal construction Statement size brooch The N21 Spider Brooch delivers avant garde luxury with bold sculptural design and premium crystal embellishments. Crafted with intricate metalwork featuring articulated spider legs and a dramatic blue sapphire center stone surrounded by brilliant cut crystals. This statement piece combines Italian craftsmanship with contemporary artistic vision for sophisticated accessorizing.