Princess-cut lab-grown diamond ring with pavé split-shank band in white gold by THE LAB Jewellers
Princess-cut lab-grown diamond split-shank ring in yellow gold by THE LAB Jewellers
Princess-cut lab-grown diamond split-shank ring in rose gold by THE LAB Jewellers
Princess Cut Lab-Grown Diamond Split Shank Ring, white gold view 1
Princess Cut Lab-Grown Diamond Split Shank Ring, white gold view 2
Princess Cut Lab-Grown Diamond Split Shank Ring, white gold view 3
Princess Cut Lab-Grown Diamond Split Shank Ring, white gold view 4
Princess Cut Lab-Grown Diamond Split Shank Ring, yellow gold view 1
Princess Cut Lab-Grown Diamond Split Shank Ring, yellow gold view 2
Princess Cut Lab-Grown Diamond Split Shank Ring, yellow gold view 3
Princess Cut Lab-Grown Diamond Split Shank Ring, yellow gold view 4
Princess Cut Lab-Grown Diamond Split Shank Ring, rose gold view 1
Princess Cut Lab-Grown Diamond Split Shank Ring, rose gold view 2
Princess Cut Lab-Grown Diamond Split Shank Ring, rose gold view 3
Princess Cut Lab-Grown Diamond Split Shank Ring, rose gold view 4
Princess Cut Lab-Grown Diamond Split Shank Ring — 360° spin video

Portia — Princess Cut Lab-Grown Diamond Split Shank Ring

Approx. 2.46ct total lab-grown diamond weight

D–F colour · VS1+ clarity · IGI report included

Made to order — dispatched in around four weeks, hallmarked where required

Regular price£2,095.00
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Free tracked and signed-for UK delivery. View delivery details.

Metal

Made in your size at no extra cost. Ring size guide

Not sure of your size? Order a strap sizer — it is £5.00, and we email the full £5.00 straight back to you as a gift card, so it comes off the price of your ring.

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Lab-grown diamond quality

D–F colour  ·  VS1 clarity or better

Every lab-grown diamond is D–F colour and VS1 clarity or better. Round brilliant lab-grown diamonds can receive a formal cut grade; fancy shapes are assessed through their proportions, polish, symmetry and overall make. Any piece whose centre stone, on its own, weighs 1.00ct or more includes an individual IGI grading report as standard. Total carat weight does not count towards this.

Portia begins with a clean square and opens the band beneath it. The split shoulders create two distinct lines around the finger, giving the centre room to lead while adding breadth and detail to the ring. It is a modern engagement design shaped by division, symmetry and strong geometry.

A 7.00mm princess-cut lab-grown diamond of approximately 1.61ct sits above the point where the shank separates. Thirty-four 1.80mm round lab-grown diamonds follow the twin rows around the finger. Together, the 35 stones weigh approximately 2.46ct, balancing the centre's crisp outline with a continuous run of smaller round accents.

Portia opens up the band

Portia uses its split shank to give the princess centre a broader, more architectural foundation than a single band could provide. Thirty-four round accents trace the divided shoulders, bringing the total weight to approximately 2.46ct across 35 stones. The approximately 1.61ct centre includes an independent IGI grading report. Choose 14kt for the harder, more scratch-resistant gold, or 18kt for more pure gold and a heavier feel.

  • Stone type: Lab-grown diamond
  • Centre stone: Princess cut, approx. 7.0mm (≈ 1.61ct)
  • Stones: 1 × 7.00mm princess centre and 34 × 1.80mm round accents
  • Stone count: 35 lab-grown diamonds
  • Total lab-grown diamond weight: Approx. 2.46ct
  • Certificate: includes an independent IGI grading report for the centre stone, at no extra cost.
  • Metal options: 14kt or 18kt White, Yellow or Rose Gold

Ring Size

This ring is made to order in your size. Choose your UK ring size when you order — there is no extra charge for any size. If you are unsure of your size, our ring sizer makes it easy at home — and your £5 comes straight back to you as a gift card. Standard UK sizes are available — if you need guidance, contact us before placing your order.

Made to Order

Every piece is crafted to your chosen metal and ring size. Our usual timeline is around four weeks from order to dispatch, which includes UK hallmarking where required. More complex pieces may take slightly longer. We confirm the expected timeframe in writing before production begins.

Wearing Portia

Portia wears well beside a slim plain wedding band, while a curved band can nestle into the divided design. From above, the split shank adds width around the 7.00mm princess centre while preserving its clean square outline as the focus.

Questions about Portia

What size is Portia's princess centre?
The princess-cut lab-grown diamond measures approximately 7.0mm and weighs approximately 1.61ct. It sits above the point where the band divides, placing its clean square shape at the centre of the split design.

How many accent stones run along Portia's band?
Portia has 34 round lab-grown diamond accents, each measuring 1.80mm. They follow the two rows of the split shank, bringing the complete ring to 35 stones and approximately 2.46ct in total.

What kind of wedding band suits Portia?
A slim plain wedding band pairs neatly with Portia, while a curved band can nestle into the shape of the split shank. Both choices keep the princess centre and divided shoulders clearly visible.

Jewellery Care

Store separately in the pouch or box provided. Avoid contact with harsh chemicals, perfume, and chlorine. Clean gently with a soft cloth or mild soap solution. Remove before swimming, exercising, or sleeping. See our Materials & Care guide for full instructions.

Need help choosing?

Unsure on size, metal, or lab-grown diamond specification? Email us and we'll guide you to the right option before you order — we reply personally, within two working days.

All pieces are made to order. Sterling silver and gold pieces dispatch in around four weeks, which includes UK hallmarking where required. Every order is tracked and signed for, and UK delivery is free. See how your piece is made, plus our Shipping & Delivery and Returns & Refunds pages for full details.

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