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Princess Cut Lab Diamond Engagement Ring 0.25ct H/Si in 925 Silver
£219£275
Silver (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Princess Cut Lab Diamond Engagement Ring 0.25ct H/Si in 9K White Gold
£469£729
From £16/mo
9K White Gold (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Princess Cut Lab Diamond Engagement Ring 0.50ct H/Si in 9K White Gold
£679£1,115
From £23/mo
9K White Gold (selected)
Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Katerina Lab Princess Diamond Engagement Ring Platinum 1.55ct F/VS1
£1,879£3,129
From £63/mo
Platinum (selected)
Diamond Diamond 1.55ct F/VS1 (Lab Grown) (selected) Diamond Diamond +5
NEXT DAY DELIVERY
Katerina Lab Princess Diamond Engagement Ring 18KW Gold 0.85ct F/VS1
£1,369£2,279
From £46/mo
18K White Gold (selected)
Diamond Diamond Diamond Diamond 0.85ct F/VS1 (Lab Grown) (selected) +6
NEXT DAY DELIVERY
Katerina Lab Princess Diamond Engagement Ring Platinum 0.85ct F/VS1
£1,379£2,375
From £46/mo
Platinum (selected)
Diamond Diamond Diamond Diamond 0.85ct F/VS1 (Lab Grown) (selected) +5
NEXT DAY DELIVERY
Princess Cut Lab Diamond Engagement Ring 0.25ct H/Si in 18K Gold Vermeil
£229£295
18K Gold Vermeil (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
2.10ct Katerina Lab Princess Diamond Engagement Ring Platinum F/VS1
£2,099£3,495
From £70/mo
Platinum (selected)
Diamond Diamond Diamond 2.10ct F/VS1 (Lab Grown) (selected) Diamond +5
NEXT DAY DELIVERY
Naomi Princess Cut Lab Diamond Engagement Ring 0.50ct H/SI in 925 Silver
£299£429
Silver (selected) +1
Diamond Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Princess Cut Lab Diamond Engagement Ring 0.25ct H/Si in 9K Gold
£469£729
From £16/mo
9K Yellow Gold (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Princess Cut Lab Diamond Engagement Ring 0.50ct H/Si in 9K Gold
£679£1,115
From £23/mo
9K Yellow Gold (selected)
Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Katerina Lab Princess Diamond Engagement Ring 18KW Gold 1.55ct F/VS1
£1,879£3,129
From £63/mo
18K White Gold (selected)
Diamond Diamond 1.55ct F/VS1 (Lab Grown) (selected) Diamond Diamond +6
NEXT DAY DELIVERY
Katerina 3.45ct Lab Diamond Princess Cut Engagement Ring in Platinum G/VS1
£2,899£4,829
From £97/mo
Platinum (selected)
Diamond Diamond Diamond Diamond 3.45ct G/VS1 (Lab Grown) (selected) +5
NEXT DAY DELIVERY
2.10ct Katerina Lab Princess Diamond Engagement Ring 18KW Gold F/VS1
£2,099£3,495
From £70/mo
18K White Gold (selected)
Diamond Diamond Diamond 2.10ct F/VS1 (Lab Grown) (selected) Diamond +6
NEXT DAY DELIVERY
Roxy Lab Diamond Engagement Side Stone Ring in Platinum 0.98CT F/VS1
£1,419£2,365
From £47/mo
Platinum (selected)
Diamond Diamond 0.98ct F/VS1 (Lab Grown) (selected)
NEXT DAY DELIVERY
Solstice Princess Cut 0.80ct Lab Diamond Engagement Ring F/VS in 9k White Gold
£839£1,355
From £28/mo
9K White Gold (selected)
Diamond Diamond 0.80ct F/VS (Lab Grown) (selected)
NEXT DAY DELIVERY
Roxy Lab Diamond Engagement Side Stone Ring in 18KW Gold 0.98CT F/VS1
£1,399£2,329
From £47/mo
18K White Gold (selected)
Diamond Diamond 0.98ct F/VS1 (Lab Grown) (selected)
NEXT DAY DELIVERY
Naomi Princess Cut Lab Diamond Engagement Ring 1.00ct H/SI in 9k White Gold
£1,099£1,835
From £37/mo
9K White Gold (selected)
Diamond Diamond 1.00ct H/SI (Lab Grown) (selected) Diamond
NEXT DAY DELIVERY
Naomi Princess Cut Lab Diamond Engagement Ring 0.33ct H/SI in 925 Silver
£249£345
Silver (selected)
Diamond Diamond 0.33ct H/SI (Lab Grown) (selected) Diamond
NEXT DAY DELIVERY
Katerina Lab Princess Diamond Engagement Ring 18K Gold 0.85ct F/VS1
£1,369£2,279
From £46/mo
18K Yellow Gold (selected)
Diamond Diamond Diamond Diamond 0.85ct F/VS1 (Lab Grown) (selected) +4
NEXT DAY DELIVERY
Sale
Roxy Diamond Engagement Side Stone Ring in 18KW Gold 0.98CT G/SI2
£1,699£3,199
From £57/mo
Diamond Diamond 0.98ct H/SI (Natural) (selected)
NEXT DAY DELIVERY
Naomi Princess Cut Lab Diamond Engagement Ring 0.50ct H/SI in 18k Gold Vermeil
£299£429
18K Gold Vermeil (selected) +1
Diamond Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Katerina 3.45ct Lab Diamond Princess Cut Engagement Ring in 18K White Gold G/VS1
£2,949£4,919
From £98/mo
18K White Gold (selected)
Diamond Diamond Diamond Diamond 3.45ct G/VS1 (Lab Grown) (selected) +6
NEXT DAY DELIVERY
2.60ct Katerina Lab Princess Diamond Engagement Ring Platinum F/VS1
£2,549£4,249
From £85/mo
Platinum (selected)
Diamond Diamond Diamond Diamond 2.60ct F/VS1 (Lab Grown) (selected) +5
Princess Cut Lab Diamond Engagement Ring 0.25ct H/Si in 925 Silver

Princess Cut Diamond and Gemstone Engagement Rings

Our princess cut engagement rings come in a range of designs - they span solitaire, halo, pavé, and side-stone styles in 9k and 18k white and yellow gold, platinum, and sterling silver. The princess cut is defined by its square silhouette and brilliant-cut facet pattern, a shape that delivers exceptional light return and a geometric precision that suits both classic and contemporary settings equally well. The square outline makes a princess cut diamond appear bold and architectural in a four-prong solitaire, while in a halo or pavé setting the same shape becomes the anchor for something more elaborate. For those drawn to colour, the collection also includes square diamond engagement rings set alongside sapphire, emerald, and ruby, where the princess cut's clean lines draw out the depth of the gemstone.

Every ring is consciously crafted from recycled precious metals. Diamond rings are set with conflict-free natural diamonds, ethically sourced in line with the UN-backed Kimberley Process, or sustainably created lab-grown diamonds - chemically and visually identical to natural stones and equal in brilliance, beauty, and quality. Gemstone pieces feature stones handpicked for their colour and clarity. Each piece is designed and handcrafted in Britain with 70 years of fine jewellery expertise.

Browse our princess cut engagement rings and find the one made for the moment.

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FAQs

A princess cut diamond is known for its modern square shape, sharp corners and brilliant faceting. Its combination of clean, geometric lines and exceptional sparkle makes it a contemporary alternative to more traditional round cuts.

Both cuts are designed to deliver plenty of brilliance, but they create distinctly different looks. A round brilliant has a classic circular silhouette, while a princess cut offers a sharper, more contemporary square shape. Princess cuts can also offer excellent visual size for their carat weight.

Princess cuts can show colour slightly more readily around their corners, so colour grade is worth considering alongside your chosen metal. Their brilliant faceting can help disguise some small inclusions, although clarity should always be assessed alongside the position and visibility of any inclusions.

The pointed corners of a princess cut can be more vulnerable than the smooth edges of shapes such as round or oval diamonds. A well-designed setting helps protect these corners, with prongs or a bezel providing additional security around the most vulnerable points.

Yes. The clean, square silhouette of a princess cut can complement a wide range of finger shapes. Its defined angles create a balanced, contemporary look, while the choice of setting and band can further influence how the ring looks on the hand.

It depends on the setting and profile of your chosen engagement ring. Higher-set or wed-fit designs may allow a straight wedding band to sit flush, while lower settings may leave a small gap. Check the individual ring design or speak to our team for help finding a complementary wedding band.