Tanzanite

Tanzanite is the most prized variety of the mineral zoisite, celebrated for its rich blue and violet hues. Discovered in 1967 and found exclusively in the hills of Tanzania, tanzanite is an exceptionally rare gemstone, with limited deposits that may not last indefinitely making it a truly special choice for bespoke jewellery.

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Tanzanite Gemstone
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Tanzanite and Diamond Platinum Cluster Ring.

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Tanzanite Gemstone
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Tanzanite Trilliant and Diamond Cluster 18ct White Gold Pendant with 16” Trace Chain.

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Tanzanite Gemstone
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Tanzanite and Diamond Cluster Platinum Ring.

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Tanzanite by Cellini

The History of Tanzanite

Tanzanite has a remarkably modern history, discovered in Tanzania in the 20th century. Despite its recent arrival, its rich blue-violet tones quickly captured global attention. Its single-source origin makes it especially distinctive in contemporary jewellery.

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Natural Origins & Characteristics

Tanzanite forms under unique geological conditions involving heat, pressure, and trace elements such as vanadium. Its colour can shift between blue, violet, and purple depending on light and viewing angle. It is found exclusively in a small area of northern Tanzania.

Tanzanite by Cellini Jewellers

Tanzanite by Cellini

We select tanzanite for its rich blue-violet colour and subtle shifts in tone. Designs are kept clean and balanced to allow the stone’s colour changes to be seen clearly. Each piece highlights tanzanite’s distinctive appeal.

Tanzanite by Cellini Cambridge
Tanzanite by Cellini Jewellers Cambridge

Care & Craftsmanship

Tanzanite ranks 6–6.5 on the Mohs scale and is best worn with care. It should be protected from impact and harsh cleaning. Our craftsmanship ensures each tanzanite isset securely while allowing its colour to shine.

Jewellery Care Guide
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Discover tanzanite, shifting between rich blue and violet hues.

Tanzanite by Cellini
Tahitian & South Sea Pearls
Tanzanite, Cambridge Jewellers
Tanzanite Jewellers Cambridge

Explore Our Gemstones

Handpicked Coloured Gemstones for Every Style.

Amethyst Gemstone
Amethyst

Amethyst

Amethyst, the birthstone for February, comes in a range of beautiful purple shades and is a type of crystalline quartz found in alluvial deposits and geodes around the world, making it a perfect choice for unique, meaningful jewellery.
Aquamarine Gemstone
Aquamarine

Aquamarine

Aquamarine, the birthstone for March, is a beautiful pale blue gem from the Beryl family, found in alluvial deposits and pegmatites, with the best stones coming from Brazil, making it a lovely choice for bespoke jewellery that adds a touch of calm.
Citrine Gemstone by Cellini
Citrine

Citrine

Citrine, a type of quartz, ranges in colour from soft yellow to vibrant orange and is found in various locations worldwide, with the best quality stones coming from Brazil, Madagascar, and Myanmar, making it a warm and vibrant choice for bespoke jewellery.
Emerald

Emerald

Emerald, the birthstone for May, is a striking green gemstone from the Beryl family, formed deep within the Earth and coloured by trace elements of chromium and vanadium, with the finest stones coming from Colombia, making it a beautiful choice for bespoke jewellery.
Garnet by Cellini
Garnet

Garnet

Garnet, the birthstone for January, is formed deep within the Earth under high pressure and comes in various colours, from deep red to orange and green, making it a versatile and vibrant choice for bespoke jewellery.
Lapis Lazuli by Cellini
Lapis Lazuli

Lapis Lazuli

Lapis Lazuli is a striking blue stone made up of multiple minerals, with the finest quality stones being a bright royal blue, often with minor calcite and pyrite inclusions. The best stones come from Afghanistan, with Chile also being a key source, making it aunique and vibrant choice for bespoke jewellery.
Opal Gemstone by Cellini
Opal

Opal

Opal, the birthstone for October, is a unique stone made of hardened silica gel, known for its colourful flashes that appear against a black or white base. While Australiais known for producing the finest opals, they’re also found in the Americas and Ethiopia, making them a beautiful choice for bespoke jewellery.
Peridot by Cellini
Peridot

Peridot

Peridot, the birthstone for August, is a vibrant green gemstone made of the mineral Olivine, with its colour coming from the presence of iron. Found in various locations around the world, peridot’s fresh, earthy tone makes it a stunning choice for bespoke jewellery.
Ruby Gemstone By Cellini
Ruby

Ruby

Ruby is the fiery red form of corundum and the birthstone for July, celebrated for its intensity, rarity, and timeless appeal. Found across the globe—with the finest examples coming from Burma—rubies form in alluvial deposits as well as igneous and metamorphic rocks. A symbol of passion and power, ruby is also the traditional gift for a 40th wedding anniversary, making it a bold and enduring choice for bespoke jewellery.
Sapphire Jewellery by Cellini
Sapphire

Sapphire

Sapphire is a variety of corundum, best known for its rich blue tones but naturally occurring in a wide range of colours every shade except red, which is classified as ruby. Found worldwide in alluvial deposits and pegmatites, sapphire is the birthstone for September, and Cellini showcases beautiful examples in many colours at our Cambridge store.
Stone Beads by Cellini
Stone Beads

Stone Beads

Stone beads have been worn for centuries for their natural beauty and individuality, with each bead showcasing unique colour and character. Cellini offers a wide selection of gemstone beads, all strung in our own workshops, and can create bespoke necklaces and bracelets in any length, finished with your choice of gold or silver clasp.
Tanzanite Gemstone by Cellini
Tanzanite

Tanzanite

Tanzanite is the most prized variety of the mineral zoisite, celebrated for its rich blue and violet hues. Discovered in 1967 and found exclusively in the hills of Tanzania, tanzanite is an exceptionally rare gemstone, with limited deposits that may not last indefinitely making it a truly special choice for bespoke jewellery.
Topaz Gemstone by Cellini
Topaz

Topaz

Topaz is often thought of as blue, but it naturally occurs in a range of colours, including pink and yellow. Found in locations around the world, topaz is the birthstone for November and is prized for its clarity and brilliance, making it a striking choice for bespoke jewellery.
Tourmaline Gemstone by Cellini
Amethyst

Tourmaline

Tourmaline is a complex group of minerals available in a wide range of colours, with rich greens and pinks among the most popular. Mined in San Diego, South Africa, and East Africa, tourmaline is a versatile and vibrant choice for bespoke jewellery.
Turquoise Gemstone by Cellini
Turquoise

Turquoise

Cellini uses only natural turquoise, available in bead or cabochon form, with the finest quality stones coming from the Sleeping Beauty mine in Arizona. Turquoise, the birthstone for December, is prized for its striking blue-green hues and makes a beautiful choice for bespoke jewellery.