(A flawless, colorless stone is considered the most valuable, and is, therefore, the most expensive.)

Behind the steel grille and doors, flawless stones have been used in the regalia.

No longer chalky, it was again a cold, flawless stone of swirling transparencies.

There were emeralds, rubies, sapphires, all flawless stones as Bourne viewed them through his glass.

The solitaire was a perfect and flawless stone.

The gem was mined in Brazil and attracted attention for being an exceptional white, flawless stone of great size.

He was known throughout the Borderlands for his flawless stones.

The wind chills me although the sunlight is warm enough as it glints off the flawless white stone of the silent mausoleum.

In terms of diamonds, a paragon is a flawless stone of at least 100 carat (20 g).

They are a family treasure, centuries old and manufactured to order, each stone flawless and perfectly matched.