1.51ct Alise Radiant Lab-Grown Diamond Halo Platinum Engagement Ring

HANDCRAFTED IN OUR HATTON GARDEN LONDON WORKSHOPS

Total Price: £2,670.00
High Street Price:
£5,340.00 This high street price is written on your jewellery valuation for insurance purposes ?

Select Diamond

  • Setting Price: £2,670.00
  • :

    Register your interest

    RING SIZE A

    Not sure the size? Read our Ring Size Guide

    Ready to Deliver – Next Day Delivery available

    Orders placed before 12pm will be sent to arrive next working day

    *For ring size changes, depending on the size may take 2-3 days to complete

    Quick proposal and need ring today?

    View our stunning Ready to Wear collections in stock ready for immediate dispatch

    BOOK AN APPOINTMENT

    HANDCRAFTED IN OUR HATTON GARDEN LONDON WORKSHOPS

    Ready to Deliver – Next Day Delivery available

    Orders placed before 12pm will be sent to arrive next working day

    *For ring size changes, depending on the size may take 2-3 days to complete

    Quick proposal and need ring today?

    View our stunning Ready to Wear collections in stock ready for immediate dispatch

    BOOK AN APPOINTMENT
    DESCRIPTION

    The Alise radiant halo is a ring that makes an immediate and powerful impression — bold, architectural, and dazzlingly brilliant. A 1.51ct radiant cut lab-grown diamond, D colour and VS1 clarity, IGI certified, encircled by a continuous halo of round brilliant cut diamonds and set in platinum with microset diamond shoulders. This is a Ready to Wear ring with presence, precision, and an exceptional diamond specification that speaks for itself.

    At the heart of the Alise sits a 1.51ct radiant cut lab-grown diamond measuring 8.12mm x 5.58mm. The radiant cut is among the most spectacular diamond shapes available — its 70 meticulously cut facets deliver an intensity of sparkle that outperforms almost every other fancy cut, combining the fire of a brilliant with the bold, rectangular lines of a step-cut shape. The result is a diamond that catches light from every angle, at every moment, in a way that is genuinely extraordinary to witness in person.

    D colour is the highest grade on the international diamond colour scale — completely colourless, allowing every one of the radiant's 70 facets to perform at their absolute peak. At VS1 clarity, the stone is entirely eye-clean under all conditions, with no inclusions visible to the naked eye. This is a first-rate specification at any price point, and one that in a natural radiant cut diamond of this size would command significantly more.

    Surrounding the radiant centre stone is a continuous halo of round brilliant cut diamonds, part of a total 0.35ct of microset diamonds that encircle the centre stone and extend along the shoulders of the ring. The halo amplifies the radiant's already impressive brilliance, adds visual size to the centre stone, and creates a ring that sparkles from every conceivable angle. The shoulder diamonds extend that brilliance seamlessly down the band, making the Alise one of the most complete and dazzling designs in the Ready to Wear collection.

    Set entirely in platinum — stamped 950, hallmarked, and weighing 4.43 grams — the Alise is built to the highest standard in the most prestigious of metals. Platinum's naturally white lustre is the perfect complement to the D colour radiant, enhancing its colourless brilliance without the yellowing that white gold develops over time. At 1.80mm wide, the slim band keeps the design refined, sitting flush against any wedding band — including the Adina wishbone wedding band as shown.

    In stock now. Available for next day delivery. Handcrafted in our Hatton Garden, London workshops.

    Ring Details

    • Centre stone: radiant cut lab-grown diamond, claw set
    • Carat weight: 1.51ct
    • Colour: D (colourless — highest grade)
    • Clarity: VS1 (eye-clean)
    • Certification: IGI cert no. LG718509821
    • Diamond dimensions: 8.12mm x 5.58mm
    • Halo & shoulder diamonds: round brilliant cut, 0.35ct total, microset
    • Metal: platinum (stamped 950)
    • Band width: 1.80mm | Total ring weight: 4.43g
    • Stock size: K (US 5.5) — free resizing available after purchase
    • Pairs with the Adina wishbone wedding band as shown

    Why lab-grown?

    Lab-grown diamonds are real diamonds — chemically, physically, and optically identical to natural diamonds, certified by the IGI to exactly the same standards, with the same hardness, the same brilliance, and the same fire. At 1.51ct D VS1 in a radiant cut, choosing a lab-grown diamond delivers the finest colour grade and eye-clean clarity in a bold, spectacular stone — at a price that makes genuine quality genuinely accessible, without any compromise on the diamond itself.

    In stock. Next day delivery available on orders placed before 12pm. Free resizing after purchase, with no time limit. Complimentary engraving. Retail valuation for insurance included. Exchange policy if your partner wants a different design.

    The Alan Bick Advantage

    Lifetime of
    Service

    Our jewellery is manufactured to the highest level in our workshops by our craftsman providing you with a lifetime of service should you need a repair.

    Free re-sizing of
    engagement ring

    Offering the option of re-sizing your ring to the perfect size complimentary from us to you after your purchase

    Get out of jail
    (change design)

    Our priority is to ensure you adore this ring and cherish it for a lifetime. If it’s not love at first sight, you can exchange it, no questions asked.

    What’s included with your purchase?

    Stunning bespoke box

    Stunning presentation box

    Retail valuation for insurance purposes

    Item hallmarked

    Description

    The Alise radiant halo is a ring that makes an immediate and powerful impression — bold, architectural, and dazzlingly brilliant. A 1.51ct radiant cut lab-grown diamond, D colour and VS1 clarity, IGI certified, encircled by a continuous halo of round brilliant cut diamonds and set in platinum with microset diamond shoulders. This is a Ready to Wear ring with presence, precision, and an exceptional diamond specification that speaks for itself.

    At the heart of the Alise sits a 1.51ct radiant cut lab-grown diamond measuring 8.12mm x 5.58mm. The radiant cut is among the most spectacular diamond shapes available — its 70 meticulously cut facets deliver an intensity of sparkle that outperforms almost every other fancy cut, combining the fire of a brilliant with the bold, rectangular lines of a step-cut shape. The result is a diamond that catches light from every angle, at every moment, in a way that is genuinely extraordinary to witness in person.

    D colour is the highest grade on the international diamond colour scale — completely colourless, allowing every one of the radiant’s 70 facets to perform at their absolute peak. At VS1 clarity, the stone is entirely eye-clean under all conditions, with no inclusions visible to the naked eye. This is a first-rate specification at any price point, and one that in a natural radiant cut diamond of this size would command significantly more.

    Surrounding the radiant centre stone is a continuous halo of round brilliant cut diamonds, part of a total 0.35ct of microset diamonds that encircle the centre stone and extend along the shoulders of the ring. The halo amplifies the radiant’s already impressive brilliance, adds visual size to the centre stone, and creates a ring that sparkles from every conceivable angle. The shoulder diamonds extend that brilliance seamlessly down the band, making the Alise one of the most complete and dazzling designs in the Ready to Wear collection.

    Set entirely in platinum — stamped 950, hallmarked, and weighing 4.43 grams — the Alise is built to the highest standard in the most prestigious of metals. Platinum’s naturally white lustre is the perfect complement to the D colour radiant, enhancing its colourless brilliance without the yellowing that white gold develops over time. At 1.80mm wide, the slim band keeps the design refined, sitting flush against any wedding band — including the Adina wishbone wedding band as shown.

    In stock now. Available for next day delivery. Handcrafted in our Hatton Garden, London workshops.

    Ring Details

    • Centre stone: radiant cut lab-grown diamond, claw set
    • Carat weight: 1.51ct
    • Colour: D (colourless — highest grade)
    • Clarity: VS1 (eye-clean)
    • Certification: IGI cert no. LG718509821
    • Diamond dimensions: 8.12mm x 5.58mm
    • Halo & shoulder diamonds: round brilliant cut, 0.35ct total, microset
    • Metal: platinum (stamped 950)
    • Band width: 1.80mm | Total ring weight: 4.43g
    • Stock size: K (US 5.5) — free resizing available after purchase
    • Pairs with the Adina wishbone wedding band as shown

    Why lab-grown?

    Lab-grown diamonds are real diamonds — chemically, physically, and optically identical to natural diamonds, certified by the IGI to exactly the same standards, with the same hardness, the same brilliance, and the same fire. At 1.51ct D VS1 in a radiant cut, choosing a lab-grown diamond delivers the finest colour grade and eye-clean clarity in a bold, spectacular stone — at a price that makes genuine quality genuinely accessible, without any compromise on the diamond itself.

    In stock. Next day delivery available on orders placed before 12pm. Free resizing after purchase, with no time limit. Complimentary engraving. Retail valuation for insurance included. Exchange policy if your partner wants a different design.

    Additional information

    Ring Size

    Not Sure, A, A 1/2, B, B 1/2, C, C 1/2, D, D 1/2, E, E 1/2, F, F 1/2, G, G 1/2, H, H 1/2, I, I 1/2, J, J 1/2, K, K 1/2, L, L 1/2, M, M 1/2, N, N 1/2, O, O 1/2, P, P 1/2, Q, Q 1/2, R, R 1/2, S, S 1/2, T, T 1/2, U, U 1/2, V, V 1/2, W, W 1/2, X, X 1/2, Y, Y 1/2, Z, Z 1/2

    Lifetime of Service

    Providing a faultless customer service after your purchase.

    Need advice? We’re a click away

    Talk to our sales team directly to have your questions answered.

    Free engraving on your wedding band order

    Complimentary engraving inside your ring.

    BOOK APPOINTMENT

    Sign up for our newsletter

    Keep up to date with our latest offers, competitions and news, and be a part of the community

      © 2026 Alan Bick

      accreditations
      0
      Your Cart