There was not just the necklace, but also a rather grand brooch included in the wedding gift from Queen Mary to the Duchess of Gloucester. And the brooch also had some large-ish emerald drops, though I am not sure where they came from originally of course. They still don't seem to match what looks like two rather huge emerald drops worn by Queen Victoria at the ball. Mind you, Queen Victoria was a rather short woman so the emeralds might look a bit larger on her than they would perhaps on somebody else.

Without having evidence what-so-ever, would it be scandalisingly bold of me to harbour the possibility of them maybe having been cut at some stage? To maybe create smaller but more glittering gems? Hopefully they are intact though but probably, rather sadly, lingering in some vault somewhere.