properties
Spinel is a very special stone and we find it in a wide variety of beautiful pastel shades that make it very desirable: pink, purple, orange, yellowish, red, blue... Throughout history, this stone has been confused many times for other gems. This is the case of the "Ruby of the Black Prince", embedded in the crown of England, or the "Ruby of Tamerlán" of 361 carats, finally being red spinels and not rubies. What differentiates a spinel from a ruby is its refraction: simple, in spinel, and double, in the case of ruby. It is a gemstone with a high Mohs hardness index: 8 out of 10. The largest spinels in the world reach 520 carats and are exhibited in the British Museum in London.
You can see the designer jewelry pieces created from spinels by Jordi Rosich here