Costly
From BiblePortal Wikipedia
King James Dictionary [1]
Costly, a. from cost. Of a high price sumptuous expensive purchased at a great expense as a costly habit costly furniture.
Mary took a pound of spikenard, very costly. John 12 .
Webster's Dictionary [2]
(1): (a.) Gorgeous; sumptuous.
(2): (a.) Of great cost; expensive; dear.