Hi Ming
There are 2 versions of the Unicef Signature for Good series fountain pens.
One of them is with the typical black resin barrel ( and has 2 versions - the Le Grand & Classique):
And the LE with Lapis Lazuli cap, looks majestic!
You are right, the blue sapphire on the set onto the filigree gold-plated UN's olive wreath really add a touch.
Hope the boutiques around your area has all the variations.
Please share your findings after holding them.
Kong