Josefine..if you look at your photos that you posted of Princess Sybilla...she is wearing same ring on her right hand...you can clearly see in you photos that the central stone has a "dome" shape and is much larger than the one that Queen Silvia is wearing...in addition there is double row of diamonds around the sapphire so Silvia's ring.
now, look at my closeup, you can see that the sapphire is FLAT and the ring is much larger in proportion because of the double row of the diamonds.
in addition, the diamond pearl earrings that Sybilla is wearing are NOT the same as the ones seen on CP Victoria...look at it side by side..Sybilla's has two protruding diamond on each side and pearl and diamonds seem to be larger and looks like earrings with substance...however, Victoria's earring looks just simple same diameter diamonds around the pearl, more modern approach, if this makes sense.
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