The lustre of this is the true "adamantine," or diamond, brilliancy, and the other and impure divisions of this particular lustre are: Splendent, when objects are reflected perfectly, but of a lower scale of perfection than the true "adamantine" standard, which is absolutely flawless.
"The Chemistry, Properties and Tests of Precious Stones"
John Mastin
The triumph strode Splendent over sea and shore, subduing waves and rocks to a path for its mighty entrance into that dark cave on the human coast.
"Malcolm"
George MacDonald
They had enticed the Splendent light-fish into their caverns to give illumination.
"Seed of the Arctic Ice"
H. G. Winter