At Ethica Diamonds, we know it’s not always possible to get the right size first time. We work closely with a traditional jewellery workshop in the Birmingham Jewellery Quarter, where we can resize and repair almost any ring with precision using state of the art laser welding techniques, resulting in a seamless, invisible, hardwearing finish.

Book our resizing service here


Making your perfect ring is important to us, and we understand that finding the perfect size for your ring can be tricky when purchasing online. This is why we’re happy to send you a free ring sizer. If you are resident in the UK, we are happy to send you a complimentary plastic ring sizer so that you can easily measure your finger size at home.

Ring Sizer
Sketch - Ring

How Does It Work?

 Please send your ring back to us at –

Ethica, PO Box 331, St Austell, Cornwall PL25 9HD

We recommend using Royal Mail special delivery guaranteed before 1.00pm and we will email you to acknowledge when we have safely received your ring for your peace of mind. Please send back to us in its original box or alternative box so your ring is safe and secure. Email us with your return address and make sure that you include the details of your order, the name of the person who made the purchase. We recommend that you also put a copy of this inside the parcel. We will email you as soon as we receive your ring and we will let you know that we have it safely for your peace of mind.

Our resizing Service usually costs £125.00* and is inclusive of three-way insured postage and VAT to our workshop and back to you. Every resize is different, and the exact cost will vary with ring style, width and metal – we we will inform you in advance if the cost will be more than this.

We offer a complimentary resize on all engagement rings with a purchase price of £2000 or more within 30 from the delivery date.

Please let us know if there is engraving on the ring, or a textured finish, as this will need to be included in the quotation as re-engraving or refinishing and will incur an extra cost and is part of the complimentary resize.

The process takes around 10 working days from the day it reaches our workshop and as part of this service, we will re-polish your ring for you too, so that it looks shiny and brand new again! We use the laser joining method which will give a flawless finish to the highest standard.

Resizing down. No metal would be removed from the ring during this process. This applies for a difference of 1-2 sizes. More than this might require re-setting the stone/s or replacing the mount.

Resizing up. We would not stretch the metal during this process, which would compromise the integrity of the band. We would quote for an extra piece of metal that is added to the band if necessary.

For complimentary resizing on engagement rings – you are responsible for all the associated postage costs.

For the Resize Service – you are responsible for the cost of sending your ring to us, the return postage is covered within the service fee.

A lifetime guarantee is given on all Ethica Diamonds against manufacturing defects and it will be replaced free of charge in the event of loss of optical properties, discolouration, cracking or fracture to the stones as long as there are no signs of damage to the jewellery setting. We will inspect every item that is returned to us and advise accordingly if the repair is chargeable or not.


 Shoulder set designs are more susceptible to stones becoming loose because the claws are so small and delicate, there is a greater chance for them to loosen slightly over time, leading to a stone eventually falling. Shoulder set rings or multi-stone rings that have been returned for resizing up or resizing down carry a risk of disturbing the side/shoulder stones in their setting which is a well known factor in the jewellery trade and is by no means a reflection on the quality of the product purchased. Please ensure that you take extra care with sizing before ordering a ring with more than one stone.

Nouveau engagement ring on the hand

If you have ordered a ring, but you are not sure that it is the right size, it is best to wait until you know for certain rather than have the engraving done at the time of purchase. You can then send the ring back to us for it to be engraved once you know that you have the correct finger size. This will avoid you having to pay again for the engraving to be redone. If a ring needs to be resized that already has an engraving, we will re-engrave if necessary but there will be an extra charge for this.

Often with diamond jewellery, there is a “bedding in” period, usually within the first month of it being worn. As the precious metal is worn it warms up and cools down which occasionally causes the stone/s to become loose.

This is by no means a reflection of the quality of product purchased.

We always take every possible precaution when we resize rings and every claw will be checked and secured by our setters before it leaves our workshop. However, once it has been altered from the original manufactured size, we cannot predict what may happen to it thereafter and responsibility then lies with the owner. Resized rings become more vulnerable and can cause stones to loosen and/or fall out.

Ethica Diamonds will cover the workshop and postage costs up to 30 days following a new purchase or a repair with us. After 30 days, you will be responsible for all the associated costs but we will only charge a small fee for labour to re-secure the stone/s. Engagement rings with an order value of £2000 or more are resized free of charge within 30 days from the delivery date, but we do not cover the associated postage costs.

Fallen or loose stones will be replaced if a manufacturing/setting fault is identified in the setting during the first 30 days of purchase or 30 days following any alteration/repair.*
*T&C’s apply



 All repairs will be sent to our workshop for inspection before we can advise whether the cost is covered by us under our guarantee policy. Please email us with as much information as you can and include photos if it helps.



We cannot accept responsibility for rings that are not originally ordered in the correct size and consequently require resizing.

Resizing or repairs carried out on an item bought from Ethica Diamonds, or under our previous name of Kinetique, needs to be returned to us in order to keep your guarantee validated. We will not be responsible for the jewellery or any damage/loss of the stones if it has been altered by a third party.

If a shoulder set ring needs to be resized by more than the average 1-2 sizes, it will cause disturbance to the setting and the stones would not be secure. In this case, a new mount will be required and we will offer a scrap value for the original setting, offset against the cost of a new mount manufactured in the correct size. This is an exceptional circumstance, and we would avoid this if at all possible.

Fairtrade Gold

In cases where a solitaire or wedding band needs to be resized much larger than the average 1-2 sizes, an extra piece of metal will be required and will add a small additional cost to the re-sizing fee.

Please let us know if there is engraving on the ring, or a textured finish, as this will need to be included in the quotation. Re-engraving or refinishing will incur an extra cost.

Ethica Diamonds are not responsible for the postage and handling costs incurred sending items back to us for resizing or repairs.

Finally, we are not responsible for the loss or loosening of stones after 30 days following any alteration/repair carried out by us or after 30 days from the date of your purchase.