Zircon candelabrum with prisms is from Appletree Auctions. Crystal example is from Bobbie and James Taylo.
Heisey Kohinoor #1488 produced 1937-1939; the console set again in 1941-1946. It was available in crystal or zircon, with a few items in sahara. Most of the items are marked with the "Diamond H."
The diamond motif design for this small table service line was inspired by the famous Kohinoor (Mountain of Light) Diamond of India which now resides as one of the Crown jewels of England.