Each of these were marked as padparadscha sapphires from 3 different sellers on auction sites. The outer 2 look much darker in person than online. And the middle one looks much lighter. Would these be considered padparadschas? I want to make a signet ring… or maybe a toi et moi as I’m kinda liking the middle and left one together. Is it taboo to mix synthetic and genuine?

Left to right they’re approximately: Left: 2cts emerald cut, untreated Middle: 3cts pear, synthetic Right: 1ct, untreated