In July 2014 Arthur initiated an interesting discussion about QEQM wearing the Greville emerald necklace, and Merlin provided a list of dates when it had been worn. Later some others added to the list of dates. http://members2.boardhost.com/royal-jewels/msg/1406244626.html
Here is another occasion - this is the earliest photo which I have found, but HM may have worn the suite privately or on another occasion for which I have not noticed a photo. HM wore the jewels in Edinburgh. The photo was published in the Illustrated London News 10 September 1949.
I have often wondered if the bracelet was also part of Mrs Greville's legacy, but I have no way of proving that; however, HM only began to wear the bracelet in public after the war ended - as with so many of the jewels we now know are part of the legacy.