Pure focus on geometry.
Unusual gold brooch from the late 1920s that centers a large 6ct untreated natural sapphire highly transparent medium light blue color surrounded in a frame by approximately 2ct of deep pinkish red natural rubies. The soft blue contrast subtly and playfully to the rubies.
Gross weight 5.1gram
Approximately 19,5mm diameter.
Hallmarked 750,
Signed H.R and a mark 5?3
In color theory, contrast colors—those positioned opposite each other on the color wheel—create dynamic visual tension and harmony when paired. Blue and red, though not true complements (blue–orange are), represent a powerful warm–cool opposition that heightens both tones’ intensity. Blue recedes, suggesting calm and distance; red advances, conveying warmth and energy.
In jewelry, this interplay translates into visual balance and emotional depth. The pairing of sapphire and ruby embodies this principle perfectly: the serenity of blue offset by the vibrancy of red. Designers have long exploited such chromatic contrasts to evoke both equilibrium and drama, appealing to the eye’s instinctive attraction to balance between opposites.
