ROSA
Alexandrite & Diamond 950 Platinum Halo

£2,329.00 GBP
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Made to Order For You
Estimated dispatch 18 Nov – 9 Dec . Need it sooner? Call 0161 537 6773
Complimentary Insured Delivery
Free insured delivery & returns with discreet packaging and 50-day returns.
Lifetime Care
Free lifetime warranty, lifetime diamond upgrade and complimentary 1-year resizing.
Finding Your Ring Size
Unsure which size to order? View our Ring Size Guide

The natural diamond shoulders of Rosa lead towards an oval alexandrite enclosed by a matching diamond halo. In 950 platinum, the centre is held by four claws. This layout gives the ring a decorative face while preserving one principal coloured stone.

The 950 platinum mount frames the colour without changing the gemstone's role. Alexandrite can change its appearance in different light. The alexandrite centre is lab-grown, while the halo and shoulder accents are natural diamonds. The halo traces the oval closely, while the shoulder accents carry the brightness along the hand.

The 2.20mm band supports Rosa's shoulder-set halo. The product specification states that the ring is designed to fit most standard wedding bands. These practical details sit alongside a decorative design in which the centre gemstone remains visibly separate from its natural diamond accents.

The four claws give the oval centre a definite edge within the halo. Along the band, the natural diamonds continue the design in a smaller scale. This balance of colour and smaller natural diamonds is what makes the design distinctive within a classic halo shape.

Specification:

  • Centre Stone: Lab grown Alexandrite Oval. Additional sizes available upon request.
  • Side Stones and Halo: G/H SI conflict-free diamonds
  • Side Stones and Halo: 24 - 30 diamonds
  • Metal: 950 Platinum
  • Setting: Shoulder set halo
  • Band width: 2.20mm
  • This ring is wedding ring friendly, and will fit most standard wedding rings
  • This piece has been certified in accordance with the hallmarking Act 1973

Images & Videos

  • Model Hand Image: Rosa Oval Cut 1.50ct
  • Product Video: Rosa Oval Cut 1.50ct & Cecelia band
  • Models wears a ring size UK M

Finance Options

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Shipping

Lily Arkwright is proud to offer free worldwide delivery and returns.

We aim to dispatch most orders within 7–28 days. Selected bespoke designs may take 5–6 weeks.

Estimated delivery times after dispatch:

  • UK: Next working day
  • Europe: 2–5 working days
  • US & Canada: 3–5 working days
  • Rest of the world: Typically 3–5 working days

All parcels are dispatched through our nominated couriers, fully insured and requiring a signature upon delivery.

Returns

Enjoy a 50-day money-back guarantee with complimentary worldwide return postage on eligible purchases, starting from the date of delivery.

To arrange a return or exchange, please email hello@lilyarkwright.com to request a Returns Number (RN) and return instructions. Please retain proof of postage.

Returned jewellery must be unworn, in its original condition and accompanied by its original packaging and relevant certificates.

Certain engraved, personalised or genuinely bespoke pieces may be excluded from change-of-mind returns, without affecting statutory rights.

For orders exceeding £15,000, the change-of-mind returns period is 14 days rather than 50 days, without affecting your statutory rights.

Please see our Delivery & Returns Policy for full details.

A little bit more sparkle perhaps?

You've found your near perfect Lily Arkwright ring, but there's something missing.

Rather than creating a bespoke ring design, simply select any of our popular ring upgrade packages from pointed prongs to a hidden diamond halo, we've got you covered.

View all upgrades here.

Matching Wedding Band

We recommend you match the Rosa Engagement Ring with the Ember 2.20mm Wedding Band.

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LONDON - MANCHESTER

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Step into the world of Lily Arkwright, we offer virtual WhatsApp appointments. Alternatively, visit our London or Manchester showrooms to find your perfect Diamond Ring.

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Payment Options

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Simply choose Klarna during checkout and select your preferred payment option, Pay in 30 days, Pay in 3 or monthly instalments between 0 - 36 months, starting from 0%.

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ABOUT YOUR CENTRE GEMSTONE

Lab-Grown Alexandrite Engagement Rings: Colour and Design

Lab-grown alexandrite brings a distinctive colour-changing character to an engagement ring. This variety of chrysoberyl can appear bluish-green in some lighting and shift towards purple or reddish tones in others. The strength of the effect varies from stone to stone, so photographs taken in a single light may not show its full appearance.

What Is a Lab-Grown Alexandrite Gemstone?

Laboratory-grown alexandrite has the same essential mineral composition as natural alexandrite but is created in controlled conditions. It is not a diamond or a sapphire. Its changing colour is central to its appeal, particularly when paired with bright accent diamonds that provide a consistent contrast as the centre gemstone changes in different light.

Choosing an Alexandrite Engagement Ring Setting

An oval alexandrite gives a graceful, elongated outline; a round or cushion shape creates a different balance on the hand. A solitaire keeps the focus on the gemstone, while a diamond halo frames its changing colour. Compare the centre stone’s millimetre measurements, the metal tone and the side profile of the setting when choosing a ring for everyday wear.

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