• 3 carat heart cut lab diamond ring in platinum with heart shaped claw setting - Christine Sadler
  • side view of platinum heart lab diamond ring showing heart claw design - Christine Sadler
  • 3 carat heart shaped lab grown diamond ring handmade in the UK with heart shaped setting - Christine Sadler
  • Detail of diamond set shoulders on 3 carat heart cut diamond ring - Christine Sadler
  • Three carat heart cut lab diamond ring with diamond set shoulders - Christine Sadler
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Christine Sadler Unforgettable Jewellery

3 Carat Heart Ring in Platinum | Hidden Heart Setting | Lab Grown Diamond

3 Carat Heart Ring in Platinum | Hidden Heart Setting | Lab Grown Diamond

£4,300.00 GBP
£4,300.00 GBP
Sale Message to pre order
Free UK next-day delivery | Free International delivery over £500

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This striking 3 carat heart-cut diamond ring is designed as a celebration of love. At its centre sits a certificated lab grown diamond of exceptional quality — D colour, VVS clarity and excellent cut — chosen for its extraordinary brilliance and perfectly balanced heart shape. The shoulders are set with eighteen round brilliant cut lab diamonds for extra sparkle.

The diamond is set in Platinum 950, a precious metal valued for its strength, purity and enduring beauty. Each ring is handmade in the UK, allowing the setting to be carefully crafted around the individual stone.

What makes this ring truly distinctive is the design of the setting itself. The profile of the claws forms delicate heart shapes where they embrace the diamond, a subtle detail that echoes the shape of the stone.

Hidden within the setting is another thoughtful detail — a secret heart, placed where only the wearer or the person who gave the ring may know it is there. It is a small symbol of the love the ring represents.

The result is a ring that combines exceptional craftsmanship with meaningful design — a piece created to mark a moment that matters.

Details

  • 3 carat heart-cut lab grown heart diamond
  • 18 round brilliant cut lab diamonds
  • Certified lab diamond
  • D colour
  • VVS clarity
  • Excellent cut
  • Handmade in the UK
  • Platinum 950 setting
  • Heart-shaped claw profile
  • Hidden heart detail in the setting
View full details

Dimensions

3 carat center stone
18 1.8mm round brilliant cuts

Materials

Platinum 950
Lab diamonds

Guarantee

Every product we sell is made to last and comes with a free guarantee against any manufacturing fault. We also offer an ongoing repair and aftercare service that we charge for which includes sizing, cleaning or help if you accidentally damage anything you have bought from us. We recommend customers insure their jewellery against loss and accidental damage.

Our Ethical Promise

Every piece is crafted with care, using responsibly sourced metals and ethically selected diamonds. Christine and Christopher work closely with trusted suppliers to ensure that each item not only lasts a lifetime but is made with respect for people, communities, and the environment.

Specific Sizes & Customisations

You can request rings in specific sizes, choose different styles & lengths of chains or customise our designs with different gemstones or different precious metal. Just get in touch by whatsapp on 07749890107, email christine@christinesadler.com or contact us through our webchat to discuss what you would like and to get a price and timescale for any changes.

If you need help or advice to work out a how to measure a finger or wrist size or what length of chain to choose, you can take a look at our helpful jewellery measuring guide.

Jewellery ordered in specific sizes or customised is non returnable

Fast & Safe Shipping & Returns

Shipping & Delivery

  • On all orders, including luxury gift wrapping, box, and gift bag.
  • Royal Mail Special Delivery, fully insured for peace of mind. FedEx Priority for international orders.
  • Flexible delivery options — choose a delivery day that suits you best, including Saturday delivery if preferred.
  • Before 1pm on your chosen day to fit your schedule perfectly.
  • Alternative address with a personalized message for the recipient.

Returns & Refunds

  • Full refund within 30 days. (excludes earrings and items made, sized or customised to customer's specifications)
  • Insured and tracked, so you can shop with confidence knowing your jewellery will arrive safely.

For full details, please see our Refund Policy and Shipping Policy.

International (EU, USA & Canada)
• Free FedEx Priority shipping on orders over £500
• £60 FedEx Priority shipping on orders under £500

Delivery times will be approximately two working days.

Taxes & Duties
UK prices include VAT.
For deliveries outside the UK, local taxes or import duties may be charged on arrival, depending on your country’s regulations.

How To Pay

Shopping with us is easy.

We take all major credit or debit cards online.

If you want to visit our Studio in Ayr you can pay in cash or by credit or debit card.

Collect & Pay In Store

We have a Studio in Ayr that you can visit by appointment and arrange a time to click and collect, paying in person rather than online. Learn More

Care Instructions

Clean regularly and avoid contact with any harsh chemicals such as perfume or chlorine. For more information on how to look after our jewellery please explore our jewellery academy which is filled with care and cleaning tips and educational information about jewellery.

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Finishing Touches

All of our jewellery comes beautifully gift wrapped in a luxurious wooden lacquered box with a quality gift bag, for free. We've thought of everything to make your job of giving your gift fun.

★ 5 out of 5 from 244 reviews

Christine Sadler Unforgettable Jewellery has been designing and selling exceptional pieces since 1999. As an award-winning business, we pride ourselves on providing personal, expert guidance to every customer. With only five-star reviews, our clients trust us to exceed their expectations at every step — from fast, thoughtful quotes to a consultation where you will always speak directly with Christine or her husband Christopher. Every interaction is designed to be personal, considered, and exceptional, so you can feel confident in your choice.

Our Reviews

Need A Specific Finger Size or Length?

Add your chosen items to the cart, then use the notes section at checkout to tell us your exact size or length preferences. We’ll tailor your jewellery to fit perfectly.

Make It Unique

Want to personalise or customise any of our designs? We’d love to hear your ideas and help create something uniquely yours.

Get in touch anytime. Between 9am and 5pm, Tuesday to Saturday we often reply immediately, and if we’re available outside these hours, we’ll do our best to respond then too.

Let’s chat and make your perfect jewellery design a reality.

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We offer a wide range of services to help make shopping with us easier. If you want to see two items side by side that you are trying to compare we can send you photos or videos of the products. If you have any questions we can reply immediately. If you would like to make an appointment to view anything in person at our Studio in Ayr, simply get in touch and let us know when suits you.

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