This page gathers every blue gemstone currently held in our collection, drawing together five distinct varieties: Aquamarine, Paraiba Tourmaline, Blue Zircon, Tanzanite and Blue Sapphire. Each arrives at blue by a different route. Iron gives aquamarine its cool, transparent sea tones; copper lends Paraiba tourmaline its electric, almost luminous blue-to-green; vanadium is responsible for tanzanite's violetish blue, a colour that shifts noticeably as the stone is turned; iron and titanium together produce the classic blue of sapphire; while blue zircon owes its appeal as much to exceptional brilliance and dispersion as to hue itself.
When choosing between them, weigh three things. First, tone and saturation — whether you want the pale, luminous end of the spectrum or a deep, velvety blue. Second, hardness and wear: sapphire is the most robust of this group and suits daily-worn jewellery, while tanzanite and zircon reward more protective settings. Third, cut, which governs how convincingly a stone returns light and how evenly its colour reads face-up.
Individual listings state the specifics of each stone.
