Sapphire Blue May 2026

: The gem reached modern heights of fame through Princess Diana's 12-carat engagement ring , which is now worn by Catherine, Princess of Wales [6, 9, 29].

: Ranking a 9 on the Mohs scale , sapphires are the second hardest natural gemstones after diamonds [4, 17, 28]. This makes them exceptionally durable for everyday jewelry, such as engagement rings [21, 23]. Famous Sapphire Pieces Famous Gemstone Key Characteristic The Logan Sapphire 423.29 carats Sapphire Blue

: This is the most important factor [15, 27]. The most prized is a velvety royal blue or a bright "cornflower blue" with medium to medium-dark tones [4, 15, 22]. : The gem reached modern heights of fame