Blog: Hidden Gems

I reveal sapphire’s rich secrets including - what’s the most expensive sapphire ever sold? And why sapphires aren’t just blue? And even why your ‘something blue’ is so meaningful at weddings.

​Let's celebrate opal, the birthstone for October, in all its vari-coloured guises. Looking through an electron microscope, you'd see stacks of silica beads that diffract white light into all its colourful wavelengths. But we don't need hi-tech to appreciate nature's creative beauty with our own eyes.