SAPPHIRE
Blue sapphire is the most recognised variety of corundum, with “sapphire” referring to all colours except ruby red. Its one of the most valued gemstones throughout history.
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SAPPHIRE
At a glance
Birthstone: September
Colour: Medium to deep blue
Clarity: Typically clean (silk)
Mineral: Corundum
Hardness: 9
Treatments: Heat treatment
SAPPHIRE
Buyer’s Guide
Beyond blue, the corundum family includes many “fancy sapphires” in colours like pink, yellow, green, and purple.Some sapphires also show colour change, most often shifting from blue in daylight to purple under incandescent light. Blue sapphires with vivid, even saturation and strong brightness are the most sought after.
SAPPHIRE
Durability
With a hardness of 9, sapphire is one of the toughest gemstones and ideal for everyday wear.
It resists scratching very well and performs strongly in rings and long-term jewellery.
Heat treatment is stable, making the gem suitable for all settings and styles.
