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Blue Sapphire Engagement Rings

Discover responsibly sourced Blue Sapphire rings. Is a Blue Sapphire ring for you? Find out with our guide and start creating your forever ring.

Fenton Blue Sapphires

We source this iconic stone from Sri Lanka and Thailand. With a 9 out of 10 on the Mohs scale of hardness, they are the perfect gemstone for daily wear. This hardness results in a very high lustre, adding to their sparkle. No two Blue Sapphires will ever be the same.

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The Deco
The STAR
the Solitaire
the Mayfair
the Trilogy

Responsibly Sourced

Each gemstone is hand-selected to match our strict Fenton quality parameters, taking into account its colour, clarity, cut and brilliance. This means that we have visibility over our entire supply chain and are able to verify that our gemstones are sourced in a conscious way with consideration for people and planet.

Responsibly Sourced

Certified B‑Corp

Highest Quality

A royal precious stone

As Septembers birthstone, Blue Sapphires are steeped with history. From Katherine the Great, to Kate Middleton's engagement ring, Blue Sapphires have graced the collections of most Royal Families. If it’s good enough for the crown jewels, we’ll wear it too! Want to know more about this classic gemstone? Get in touch with our expert gemmologists.

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THE EAST WEST
The floral
The vintage
The Halo

The Four C's

Cut

Unlike diamonds, coloured gemstones are cut by hand. This means they’ll never be perfectly symmetrical, but each stone cutter, or lapidary, will maximise a rough crystal to achieve its highest potential in size, colour, inclusion distribution and sparkle.

Colour

Colour should be evenly distributed across the stone. We look for excellent qualities of:
• Hue (the basic colour we see)
• Saturation (the intensity of the hue)
• Tone (the gemstones relative lightness or darkness)

Blue sapphires come in a wide spectrum of blue, from pale to dark and everything in between. It’s important to note that we do not use terms such as “Royal” or “Cornflower” as these terms mean different things to different jewellers. We share the practices of luxury houses such as Cartier when describing our gemstones.

Clarity

As creations of nature, all gemstones will have clarity characteristics such as tiny lines of growth, crystals or needles, called inclusions - which may be visible to the naked eye.

Carat

Weight is typically measured in metric carats, where five carats equal one gram. However, we focus on surface area instead, as gemstones can vary hugely in their proportions and depth. Providing the size using millimetres gives a more consistent depiction of the surface area of your gemstone, and how it will look in reality.

We have 5 sizes:
Original - 8x6mm or 6mm round
Big - 9x7mm or 7mm round
Bigger - 10x8mm or 8mm round
Biggest - 11x9mm or 9mm round
Grand - 12x10mm or 10mm round

FAQs

What quality are your Blue Sapphires

We do not label our gemstones with particular quality gradings, as these grading are not standardised across the industry and mean different things to different professionals. Each of our gemstones follow slightly different quality parameters, as each gemstone is beautifully and inherently different to the next. When grading gemstones on lab reports, gemmologists the colour of the gemstone, e.g. Mid Blue, and the clarity, e.g. Eye Clean. We do not label our gemstones with particular quality gradings, as these grading are not standardised across the industry and mean different things to different professionals. Each of our gemstones follow slightly different quality parameters, as each gemstone is beautifully and inherently different to the next. When grading gemstones on lab reports, gemmologists the colour of the gemstone, e.g. Mid Blue, and the clarity, e.g. Eye Clean, which means No inclusions visible to the unaided eye from a 10cm distance.

Are Fenton Blue Sapphires treated?

Fenton only works with natural coloured gemstones that are treated in a way which follows the highest jewellery and gemstone industry standards. Our sapphires will typically be heat treated, which improves the colour intensity of a gemstone as well as some inclusions. This does not include other chemicals and will not change in appearance over time.

How can two of the same gemstone look different?

Gemstone crystals are all unique in the way they grow. For examples, two different blue sapphires share the same chemical identity, however depending on where they grow, they may have different concentrations of chemicals which make them blue. These different concentrations will result in one stone being lighter, the other darker, and a completely unique distribution on inclusions inside each.

Why are Fenton Blue Sapphire Rings cheaper than other brands?

Our philosophy is to cut middlemen, but never corners. By stripping out the antiquated supply chains of the industry we save you 2-5x the markup traditional jewellers add through unnecessary middlemen. Saving you the £1000s added every time a stone changes hands.
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