Antique and vintage ruby rings from Georgian closed-back settings through Victorian clusters to Art Deco geometric designs. Ruby is corundum — chemically identical to sapphire but coloured by chromium — with Mohs 9 hardness that makes it one of two coloured stones genuinely suited to daily ring wear. Sanskrit calls it ratnaraj, the king of precious stones.
The finest rubies display a colour known as pigeon blood: vivid, slightly purplish red with strong fluorescence and no brownish overtones. Burmese stones from the Mogok Valley, formed in marble host rock, are the classic source for this colour. Under magnification, natural rubies show fine needle-like rutile crystals known as silk — a key indicator distinguishing them from Verneuil flame-fusion synthetics, which have been chemically identical to natural corundum since 1902. Antique rubies set before the mid-twentieth century are overwhelmingly natural stones.
Victorian rings typically pair rubies with old mine-cut diamonds in 18ct yellow gold clusters and boat-shaped bezels, while Art Deco designs use calibré-cut rubies in geometric platinum channel settings. Rubies feature as the "R" in both REGARD and DEAREST acrostic rings, symbolising passion and vitality. For a detailed guide to rubies across the periods, see our article on rubies in antique rings.