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The House of Gemstones

The Fleur Sapphire Trefoil Necklace

The Fleur Sapphire Trefoil Necklace

Regular price £995.00 GBP
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Marcus Tempus

Product Story

Product Story
Three delicate trefoils of blue sapphire are spaced along the necklace, each formed from a trio of round sapphires surrounding a tiny diamond at its heart. Together, the nine sapphires create a beautiful rhythm of blue across the neckline, while the diamonds add just a pinpoint of light.

The floral influence is subtle rather than literal, giving Fleur an elegant, feminine character that can be worn every day and layered beautifully with finer chains.

It would also work particularly well within your sapphire collection because it gives us something completely different from all the statement sapphire rings we've just been adding.

Features
Nine round blue sapphires – approx. 0.32ct total
Three round diamonds – approx. 0.01ct total
Three trefoil gemstone clusters
Diamond detail at the centre of each cluster
Available in 9ct or 18ct gold
Available in yellow, white or rose gold

Part of The House of Gemstones collection, where exceptional gemstones meet timeless craftsmanship.

 

Marcus Tempus Gemstone Passport MT-GP-005
Faceted natural blue sapphire gemstone

The House of Gemstones

Blue Sapphire Passport

September Birthstone • Corundum • Mohs 9
Mineral Family Corundum
Colour Light cornflower blue to deep royal blue
Hardness 9 Mohs
Wearability Excellent for regular and everyday wear
Notable Sources Sri Lanka
Myanmar
Madagascar
Australia
Kashmir
Typical Treatments Heat treatment is common and widely accepted

Why We Treasure Blue Sapphire

Blue sapphire has been admired for centuries for its depth of colour, exceptional durability and association with loyalty, wisdom and enduring love.

From vivid cornflower tones to rich royal blue, every sapphire has its own balance of colour, brilliance and character.

Natural rough blue sapphire crystal

Nature’s Artistry

Blue sapphire is corundum coloured principally by trace amounts of iron and titanium.

Caring for Sapphire

Sapphire is one of the hardest natural gemstones and is well suited to regular wear. Clean it with lukewarm water, mild soap and a soft brush.

Avoid harsh chemicals and hard impacts. Antique, fracture-filled or heavily included stones should be assessed before ultrasonic or steam cleaning.

Origins and Character

Blue Sapphires From Around the World

01

Sri Lanka

Celebrated for bright, lively sapphires ranging from delicate sky blue to saturated royal blue.

02

Myanmar

Known for richly saturated blue sapphires with strong colour and a refined velvety appearance.

03

Madagascar

An important modern source producing a broad range of fine blue sapphires, including vivid and highly transparent stones.

04

Kashmir

Historic Kashmir sapphires are legendary for their rare velvety cornflower-blue colour and are among the most prized sapphires in the world.

05

Australia

Often associated with deeper blue, inky or greenish-blue tones and strong colour zoning.

Understanding Treatment

Natural, Heated and Unheated Sapphire

Heat treatment has been used for generations to improve colour and clarity in sapphire. It is permanent, stable and widely accepted within the jewellery trade when properly disclosed.

Natural

A natural sapphire is formed in the Earth. It may still have received a recognised treatment.

Heated

Heat is used to improve colour or clarity. This is common and accepted when disclosed.

Unheated

A sapphire showing no evidence of heat treatment is rarer and may command a premium.

Sapphires in History

Famous Blue Sapphires

The Logan Sapphire

One of the world’s largest faceted blue sapphires, admired for its exceptional size and colour.

The Star of India

A celebrated star sapphire displaying a distinct six-rayed optical star.

The Stuart Sapphire

A historic royal sapphire set within the British Imperial State Crown.

The Royal Engagement Sapphire

The famous oval blue sapphire engagement ring worn by Diana, Princess of Wales, and later by Catherine, Princess of Wales.

Marcus Tempus Gemstone Selection

How We Select Our Sapphires

At Marcus Tempus, we select blue sapphires for beauty rather than certificates alone. We consider colour, brilliance, transparency, cut, durability and overall character, choosing gemstones we would be proud to wear ourselves.

Balanced Colour Attractive Brilliance Strong Transparency Well-Proportioned Cut Honest Treatment Disclosure

Marcus Tempus Bespoke

Crafted Around Your Preferences

Many Marcus Tempus sapphire jewellery designs can be individually crafted around your preferred shade of blue, gemstone shape and precious metal. Where the design allows, we can also discuss heated or unheated stones and alternative sapphire origins.

Often Crafted In

9ct Gold 14ct Gold 18ct Gold Yellow Gold White Gold Rose Gold Platinum

Sapphire Preferences

Cornflower Blue Royal Blue Oval Round Cushion Emerald Cut Heated Unheated

Availability varies according to colour, origin, treatment, shape and stone dimensions. Not every sapphire is suitable for every setting, and some combinations may require small design adjustments.

Enquire About Bespoke Options →

Blue Sapphire Questions

Frequently Asked Questions

What gives sapphire its blue colour?

Blue colour is generally caused by trace amounts of iron and titanium within corundum.

Is sapphire suitable for everyday wear?

Yes. With a Mohs hardness of 9, sapphire is exceptionally durable and well suited to rings.

Are most blue sapphires heated?

Many are. Heat treatment is common, stable and widely accepted when properly disclosed.

Is darker blue always better?

No. Fine colour should be rich and saturated while still allowing the gemstone to remain lively.

What is an unheated sapphire?

It is a sapphire showing no evidence of heat treatment. Such stones are rarer and may carry a premium.

Can sapphire come in other colours?

Yes. Sapphire occurs in pink, yellow, green, orange, purple, white, teal and parti-coloured varieties.

Marcus Tempus gold seal

Every sapphire begins deep within the Earth.

Its next chapter
begins with you.

The House of Gemstones