Sapphire and emerald are counted among the most precious gemstones, alongside ruby and diamond. They may look alike in importance, but their nature is very different.
Mineral family
- Sapphire is a variety of the mineral corundum. Blue is its best-known colour, but pink, yellow and white sapphires also exist; red corundum is called ruby.
- Emerald is the green variety of beryl, coloured by trace elements such as chromium and vanadium.
Hardness and durability
Sapphire rates 9 on the Mohs scale — one of the hardest natural stones after diamond, and ideal for rings worn every day. Emerald rates 7.5–8 and, because of its natural inclusions, is more sensitive to knocks.
Care
- Clean sapphire with warm soapy water and a soft brush.
- Protect emerald from sudden temperature changes, ultrasonic cleaners and harsh chemicals; a soft damp cloth is enough.
Book a private appointment at our atelier to discover which stone suits you.