The 19th century was a transformative period for diamond jewelry, marked by advancements in gem-cutting techniques and an increased diamond supply, particularly after the discovery of South African mines in the late 1800s. Victorian-era designs featured intricate metalwork, floral motifs, and romantic symbolism, while later styles, such as Edwardian jewelry, emphasized delicate filigree and platinum settings. These innovations influenced 20th-century Art Deco and modern jewelry, inspiring geometric designs and more refined settings. The 19th century's emphasis on craftsmanship, symbolism, and evolving diamond cuts continues to shape contemporary fine jewelry, preserving its legacy of elegance and technical mastery.