Displaying the white and red colors of the Polish flag in her ensemble, Kate stepped off the plane and into the first stop on the 2017 Poland/Germany tour wearing these ruby and diamond earrings.
I noticed the center stone is set in yellow gold. This is not a common feature of G Collins and Sons work, so I don’t believe these are their earrings.
An oval ruby stone is set in a yellow gold setting. It looks like the whole earring is set in yellow gold. Surrounding the ruby are small white diamonds. A yellow gold attachment connects the diamond post to the drop component.
There is some uncertainty about whether these are ruby stones are not. The color does not look like the usual shade of garnet to me, and given Kate’s history of wearing rubies, and the hue of this piece, I am inclined to say these are rubies.
Here they are on Kate: