On January 31, 2018, Kate wore these earrings in Sweden.
They’re quite large and somewhat casual (in design) for Kate, especially given that she’s taken to wearing more royal jewels in recent years. The earrings consist of a large teardrop pendant made of 14ct white gold and set with a single, uniform row of white diamonds. They are affixed to white gold leverbacks, the front facing sides lined with white diamonds.
On February 18, 2018, we received confirmation that Kate’s statement emerald pendant earrings and bracelet are a part of a suite of jewels.
She wore this opulent necklace to the BAFTAs.
The necklace is made of white diamonds, yellow diamonds, and four prominent emerald stones, arranged in an almost circle at the center of the necklace and as a pendulum drop below the center. I suspect this piece is set in either platinum or white gold.
The bracelet is made of three strands of white pearls, and at least six diamond halo spacers. From what is visible in the photo there are at least two rows of diamond spacers on the bracelet, three spacers on each row.
Matching her new earrings closely, Kate also wore this necklace on the first day of the 2017 Poland/Germany tour.
The necklace’s pendant looks like an oval version of her tanzanite pendant necklace. Small white diamonds frame the oval ruby stone in the center. The pendant looks to be set in white gold, and the chain looks to be made of white gold.
There is some discussion about whether or not this is a G Collins and Sons piece. It certainly looks like it, but we would need to wait for confirmation. I don’t think this is a set to go with her earrings because the settings are completely different.