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The pink sapphire is the delicate alternative to ruby: the same corundum, the same hardness of 9/10, across a palette that runs from peachy pink to deep fuchsia. The more vivid the saturation, the more sought-after the stone — in…

The Bonnot atelier
Every stone in this collection can be set in Paris on 18k gold, designed with you.
TRAVEL DIARY
François joins the miners of Ratnapura who unearth the sapphires you see on this page.

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At Bonnot Paris, every stone is selected for its rarity, clarity and ethical provenance, ensuring full traceability, exceptional quality and fair pricing.

Pink sapphires come primarily from three countries. Sri Lanka offers the most delicate and luminous hues, from pastel to vivid pink, and remains the historic benchmark. Madagascar, particularly the Ilakaka region, has become the world's largest source since the 1990s, with pinks ranging from soft to deeply saturated. Tanzania produces more saturated pinks, sometimes enhanced by a pink-violet note.
For a good-quality pink sapphire (pure pink, approximately 2 carats, heat-treated), expect to pay between €1,500 and €2,500 per carat. An unheated stone of equivalent quality commands a premium of 30 to 50%. Above 3 carats, the price per carat rises exponentially due to rarity. Exceptional pink sapphires in pure "hot pink" tones can reach several thousand dollars per carat at auction: in 2022, a pink sapphire set a record of $90,000 per carat.
Pink sapphire and ruby are the same stone — corundum coloured by chromium — and only the concentration of chromium determines where one ends and the other begins. The higher the concentration, the more the colour shifts towards red. The precise boundary is debated between laboratories: for the GIA, a corundum is classified as a ruby as soon as it displays a dominant red hue, while the Swiss SSEF applies a stricter definition. In practice, pink sapphire is significantly less expensive than ruby for equivalent quality, making it an appealing alternative for those who love warm tones.
The padparadscha sapphire is an ultra-rare variety with characteristic pink-orange hues (the "lotus flower" colour), defined by very strict chromatic criteria set by leading laboratories (SSEF, GRS, AGL). A pink sapphire, by contrast, can display a pure pink, a pink-violet or a warm pink, without the orange component. Padparadscha commands 5 to 10 times the price per carat of an equivalent-quality pink sapphire. It originates almost exclusively from Sri Lanka, whereas pink sapphires are also found in Madagascar and Tanzania.
The pink colour of a sapphire comes from traces of chromium within its crystal structure. This is the same element that colours ruby (at higher concentrations) and emerald (in a different host mineral, beryl). The greater the chromium concentration, the more the colour shifts towards vivid pink and then red. A slight presence of iron can add a violet or orange nuance. Unlike some yellow or green sapphires, pink sapphires generally require no treatment to reveal their colour — it is naturally brilliant.
Yes — it is one of the most popular choices for a coloured engagement ring. Its hardness of 9 on the Mohs scale ensures outstanding resistance for everyday wear, with no constraints on setting style. It carries powerful symbolism — love, femininity, tenderness — making it especially fitting for a marriage proposal. It also offers a modern, personal alternative to a diamond or classic blue sapphire, while remaining timeless enough to transcend trends. In terms of budget, a pink sapphire of exceptional quality costs 70 to 90% less than a diamond of equivalent grading.
Pink sapphire pairs beautifully with rose gold, which echoes its hue for a soft, romantic and harmonious result. Yellow gold creates a warm, vintage contrast. White gold and platinum offer a pure, modern reading of the stone and suit more saturated or hot-pink shades particularly well. The choice comes down to the mood you are after: romantic with rose gold, timeless with white gold, bold with yellow gold.