Kate Middleton’s Engagement Ring & Jewellery Collection

Today marks the 44th birthday of the Princess of Wales, and while many will reflect on her philanthropic work, personal strength and fashion influence, one aspect of her public image consistently fascinates: her jewellery collection.

At the heart of it all is Kate Middleton’s engagement ring: a 12 carat sapphire once worn by Princess Diana, now one of the most recognisable engagement rings in the world. But it’s not the only piece telling a story. From her understated Welsh gold wedding ring to milestone jewels worn for birthdays and state occasions, each piece she wears carries meaning and intent.

Worn daily by the Princess of Wales, the 12 carat blue sapphire engagement ring is more than a stunning piece of jewellery, it’s a legacy. Originally chosen by Princess Diana herself in 1981 from the catalogue of royal jeweller Garrard, the oval cut Ceylon sapphire is surrounded by a halo of 14 white diamonds, set in 18k white gold. The ring was considered unconventional at the time, not because of the design, but because it was available to the public. Unlike most royal engagement rings, it wasn’t a one-of-one bespoke commission, but a ready-made piece.

That decision only adds to the ring’s intrigue. When Prince William proposed to Kate in 2010, he gave her the very ring his mother had worn. In doing so, the sapphire became a deeply symbolic gesture – a bridge between past and present, heritage and new beginnings.

When first purchased in the early 1980s, the sapphire engagement ring cost around £47,000. Today, replicating the same ring – using a natural 12ct sapphire of similar origin and quality, with a comparable diamond halo and 18k white gold setting – could cost upwards of £600,000.

But for Kate and William, its worth is measured far beyond carats and cost. As a royal heirloom and symbol of enduring love, the value of Kate Middleton’s engagement ring is considered truly priceless.

Set in a classic halo design with a vivid blue centre stone, the ring is both regal and recognisable. It balances traditional proportions with bold colour, and its timeless silhouette remains one of the most requested styles among modern proposers.

Blue sapphires, in particular, have seen a surge in popularity – chosen not only for their royal association, but for what they represent. Sapphires are symbolic of truth, loyalty and protection, qualities that are deeply connected to commitment and marriage.

Today, many couples look to emulate Kate Middleton’s engagement ring style, either through a faithful recreation or a bespoke variation inspired by it. Sapphire centre stones paired with lab grown diamond halos are a popular ethical choice, while alternative settings in yellow gold or platinum offer a more personal twist.

Inspired by Kate Middleton’s engagement ring? Whether you’re drawn to the symbolism of sapphires, the halo silhouette or the sentiment of heirloom jewellery, our bespoke engagement ring design service allows you to create a ring that feels entirely your own.

Reimagine the design with:

• A lab grown sapphire for a more sustainable take.
  
• A hidden halo or split-shank setting to modernise the classic look.
  
• Lab grown diamond accents for brilliance with a lower carbon footprint.
  
• An 18k yellow gold or platinum setting that's more tailored to your personal style.

While her sapphire engagement ring turns heads, Kate’s wedding ring is quietly steeped in royal history. Crafted from a rare piece of Welsh gold, her plain yellow gold band continues a tradition dating back over a century, worn by generations of royal women since the Queen Mother in 1923.

The ring was gifted by Queen Elizabeth II and, in typical Kate fashion, is unassuming yet deeply meaningful. Its simplicity is the perfect complement to her bold engagement ring and diamond eternity band, creating a beautifully balanced bridal set.

Welsh gold is exceptionally scarce, which makes Kate’s ring symbolically priceless. For those inspired by its timeless look, a classic 18k yellow gold band starts from around £500 – a subtle, elegant choice that prioritises meaning over extravagance.

While the sapphire engagement ring often takes the spotlight, Kate’s jewellery collection is filled with pieces that carry meaning, reflect personal milestones and offer subtle inspiration for modern designs. Here are four of Kate's most iconic jewellery moments:

Worn on her 26th birthday, this bold yellow-orange gem is often seen as a symbol of independence and optimism. Citrine is a semi-precious gemstone known for its sunny, golden hue, although most citrines on the market are actually heat-treated amethysts.

Kate’s ring is thought to feature a stone between 10–20 carats. If natural, the piece could be worth £5,000 to £10,000, though heat-treated stones would command less. The overall impact, however, is priceless. A similar statement ring could be recreated with a custom gemstone cocktail ring, perfect for birthdays or anniversaries.

Often seen stacked with her sapphire engagement ring and wedding band, Kate’s eternity ring is a delicate piece pavé set with small round brilliant diamonds. Estimated to total around 0.25 carats, the design is minimal yet significant – a likely gift to mark the birth of Prince George.

A similar design with lab grown diamonds and 18k gold would typically retail around £1,200 to £2,000. Eternity rings like Kate’s are ideal for stacking, or as understated symbols of commitment and life’s milestones.

Frequently worn at both formal events and public appearances, these green amethyst drop earrings are set with large oval stones, surrounded by a fine halo of diamonds and suspended from diamond hoops. The cool green tones pair perfectly with Kate’s colouring, and the modern horizontal setting gives the earrings a fresh, wearable feel.

A pair of similar gemstone earrings, with lab grown diamonds and 9k or 18k gold, could cost between £1,500 and £3,000, depending on size and metal. The option to detach the drops, and wear the hoops alone, makes for a clever, versatile design.

Steeped in royal history, this striking tiara features a series of diamond set lovers’ knots, each suspending a drop pearl. Commissioned for Queen Mary in 1914 and passed to Princess Diana, the tiara is now one of Kate’s most iconic formal pieces.

While not available to the public, its silhouette and balance of ornate and refined elements have inspired countless jewellery designs, from halo-style engagement rings to symmetrical cluster settings with a regal twist.

From her sapphire engagement ring to pieces worn for life’s most meaningful moments, Kate Middleton’s jewellery choices show how timeless design and personal meaning go hand in hand.

Inspired to create something equally thoughtful? Whether you’re dreaming of a sapphire ring or exploring your own signature style, we’re here to help you bring it to life.