Blue | Sapphire

The largest known blue star sapphire in the world, discovered in 2016 [14, 17]. Private Collection [14]

Sapphire Blue is more than just a colour; it is a symbol of that has captivated humanity for thousands of years [4, 6, 23]. As a variety of the mineral corundum, its iconic hue is born from trace amounts of iron and titanium interacting under extreme heat and pressure deep within the Earth’s crust [17, 24, 26]. The Allure of the Gem 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 largest known blue star sapphire in the

One of the largest faceted gem-quality blue sapphires; near flawless [14, 24]. Smithsonian Museum [14] 563.35 carats The Allure of the Gem : This is

If you are looking for a high-quality piece, experts at the GIA and Brilliant Earth suggest focusing on these "4 Cs":

: While most sapphires have natural "inclusions," look for eye-clean stones where no flaws are visible to the naked eye [4, 15, 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