Understanding10 min read
Padparadscha covers only a narrow band of pastel pinkish orange to orangey pink. This grading map shows where that band starts and ends, and why a stone just outside it sells for a fraction of the price.
Specialty Stones5 min read
Royal blue is the deep, saturated end of the Ceylon blue spectrum. This guide defines the grade, explains the tone and saturation that drive its premium, and shows how Crestonne separates true royal blue from over-dark stones.
New stones and guides, straight from the source. Written rarely, and only when there is something worth saying.