A picture of a sapphire blue nail design with elegant style

Quick answer：

Sapphire blue nail designs, characterized by their deep blue hue reminiscent of the gemstone, are often considered elegant and sophisticated. These designs can range from simple, understated patterns to more intricate and colorful arrangements. The term 'elegant style' suggests that the design is tasteful and refined, likely featuring a balance of color and simplicity that enhances the natural beauty of the nails.