Garnet: a family of gemstones with many faces

Jewellery 04/06/2025

A gem with many shades

Garnet refers to a group of minerals with varying chemical compositions but identical crystal structures. Known for its rich colours, it has been used in ornamentation since ancient times and remains a prized stone in jewellery today. Far from being limited to the dark red hue with which it is often associated, garnet comes in a multitude of varieties, offering a surprisingly wide range of colours.

Origins and geological characteristics of garnet

Scientifically speaking, garnet belongs to a group of minerals called silicates, which share the same crystal structure. It forms naturally deep within the Earth, where heat and pressure are very high, particularly during rock transformations (known as metamorphic rocks). It is also found in certain volcanic rocks. Garnet crystals often have a well-defined geometric shape, like a dodecahedron (a 12-sided ball), which sometimes makes them visible to the naked eye in their original rock.

Its hardness varies between 6.5 and 7.5 on the Mohs scale, making it a sufficiently durable stone for everyday use in jewellery. Its density and relatively high refractive index give it a beautiful shine.

A large family: the main varieties of garnet

Garnet does not refer to a single stone, but rather a family of several mineral species and subspecies. These differ in their chemical composition and therefore in their colours and optical properties. Here is an overview of the different garnets you can find in our Lepage creations:

Almandine and pyrope: the two faces of red garnet

Among red garnets, almandine and pyrope are the most iconic. Almandine, rich in iron, offers shades ranging from dark red to purplish red. Widely used in jewellery, it is mined mainly in India, Madagascar and Tanzania, and sometimes cut into cabochons to reveal an asterism. Pyrope, which is rarer, captivates with its bright, vivid red colour. Also known as ‘Bohemian garnet’, it is often very pure, with no visible inclusions. Its brilliance and intense colour make it a highly prized stone for elegant designs.

Romeo ring

Spessartite garnet: the warm glow of orange

This variety is distinguished by its colour ranging from bright orange to deep red-orange. The most saturated and luminous spessartites are sometimes referred to as ‘mandarin garnets’ and are highly prized in fine jewellery. Spessartite offers excellent dispersion, i.e. a strong ‘fire’, with colour flashes visible to the naked eye.

L'Ardente ring

Grossular garnet: a soft palette with multiple shades

Grossular garnet is distinguished by its wide variety of colours, ranging from pale green to golden yellow, with brown tones and even colourless varieties. Some stones, rich in iron, display a delicate light green colour, softer and less saturated than that of tsavorite, but just as charming. One of the best-known varieties is hessonite, recognisable by its orange to warm brown colour, which is highly prized in traditional jewellery in India and Sri Lanka. Appreciated for its transparency and subtlety, grossular naturally finds its place in refined, understated jewelry designs or those inspired by the colours of nature.

Suzanne necklace

Royal Purple Garnet: rare and charming purple

This relatively rare type of garnet is prized for its rich colour and brilliance, making it a sought-after gemstone in high-end jewellery designs. Its name is more commercial than scientific, as structurally it is a mixture of several different varieties of garnet. It is generally a hybrid garnet, most often a combination of pyrope and almandine, sometimes enriched with spessartite. This chemical mixture gives rise to intermediate colours, including this deep purple that recalls the name ‘Purple Royal’.

Purple royal garnet

Tsavorite garnet: a brilliant green with a precious freshness

Discovered in Kenya in the 1960s, tsavorite is one of the most precious varieties of garnet. Its bright green hue makes it a rare and sought-after gem. It owes its colour to the presence of vanadium and chromium in its chemical composition. Highly lustrous and often very pure, tsavorite captivates with its visual freshness and crystalline brilliance. It rivals emerald, but is more affordable.

La Tsavorite garnet

Garnet is much more than just a red stone. It represents a complex and fascinating family of minerals, whose geological richness translates into astonishing aesthetic diversity. Versatile, durable and often accessible, it appeals to rare stone enthusiasts and jewellery designers seeking originality alike. By rediscovering the many faces of garnet, contemporary jewellery is paying tribute to a long-underrated stone that is now back in vogue and will continue to feature in our creations!

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