X Items in my bag 0
    0 £0.00

    Diamond Cut

    Along with clarity, colour and carat weight, cut is one of the four Cs, used to determine a diamond’s value. When talking about a diamond’s cut do not confuse the term with a description of the stone’s shape. While shape describes the outline of the stone when viewed from above – for example, round, oval, or square - cut refers to a diamond’s proportions and its ability to disperse and reflect light. The way a diamond is cut determines its brilliance and so is often considered to be one of the most important characteristics.

    The proportions of the diamond are measured precisely to encourage the light to bounce about and refract inside the stone, increasing its brilliance. A stone that is cut too shallow looses light through the bottom; one that is cut too deep looses light from the sides and may appear darker. A stone cut to the ideal proportions allows the light in, and then reflects it back up through the crown of the stone to the viewer’s eye.

    Hatton Jewels Diamonds

    Diamond Anatomy

    When thinking about buying a diamond it is helpful if you understand as much as you can about all the characteristics of the precious stone.

    When a diamond is well-cut, light enters through the table and travels to the pavilion where it reflects from one side to the other before reflecting back out of the diamond through the table. This light creates a diamond's beautiful brilliance.

    The image below shows the attributes of a diamond, some of which are used to measure a diamond's value.

    In the table below, there is a breakdown of the anatomy of a cut diamond to explain more about how a cut grading is calculated.

     The width of the diamond, which is measured through the girdle.
     The large flat facet that makes the upper most face of the diamond.
     The upper portion of the diamond from the girdle to the table.
     The bottom portion of a diamond, extending from the girdle to the culet.
     The outer edge of the diamond, between the crown and pavilion.
     The tiny facet at the tip of a gemstone – often not visible to the eye.
    The measurement from the culet to the table. 

    Cut Grading

    The higher the cut grade the more expensive the stone will be. Cut gradings are listed in the table below.

    A rare and beautiful cut, reflects nearly all light that enters the diamond. This however can only be applied to round diamonds.
     Very Good
     Reflects almost as much light as the excellent cut.
     Reflects most light that enters.
     A good quality diamond, but less brilliant than a good cut.
    These diamonds are generally deep and narrow or shallow and wide and reflect the light poorly.

    Symmetry and Polish

    Pay particular attention to the symmetry of the cut and its final polish, both have a significant effect on the diamond’s brightness and overall quality.

    Poor symmetry can cause light to be misdirected as it enters and leaves the diamond, and can affect the diamond's brilliance.

    Symmetry is rated as:

    • Excellent (EX)
    • Very good (VG)
    • Good (G)
    • Fair (F)
    • Poor (P)

    Polish grade describes the smoothness of the diamond's facets, and is important to determine sparkle. The symmetry grade refers to alignment of the facets, and with poor polish, the surface of a facet can be dulled or blurred. Polish gradings are as follows:

    • Excellent (EX)
    • Very good (VG)
    • Good (G)
    • Fair (F)
    • Poor (P)

    Now that you understand how the cut of the stone affects its brilliance, you can make an informed decision on important questions such as whether the size of the diamond, or sparkle and brilliance are more important in determining your choice. If you have any further questions please contact us at info@hattonjewels.com or speak to one of our experts on our freephone number 0800 043 3573

    Make an Enquiry
    Please complete the below form and we will get back to you within 24 hours (Excluding weekends)
    I agreed to the Terms & Conditions
    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

    Visit Us

    Hatton Jewels,
    5 Hatton Place,
    EC1N 8RU
    Opening Hours
    Monday to Friday 9:30am to 5:30pm
    We are open by appointment only:
    Evening and early morning appointments available upon request.
    Terms and conditions of sale for Hatton Jewels

    These terms and conditions relate to the use of Hattonjewels.com website and any purchase from Hatton Jewels Ltd, Registration Number: 06241877, and whose Registered Office Address is 57-59 Queens Road, Buckhurst Hill, Essex, IG9 5BU


    All orders for Goods shall be deemed to be an offer by the Buyer to purchase Goods pursuant to these Terms and Conditions and are subject to acceptance by Hatton Jewels Ltd. Hatton Jewels may choose not to accept an order for any reason.

    When the item you wish to purchase is not available from stock you will be notified and given the option to either wait until the Goods are available from stock or cancel the order and receive a full refund within 30 days.

    Bespoke Items

    Items that are manufactured from our Build Your Own Rings range are not eligible for a full refund however a life time credit note will be issued for the full value of the item. If the item you received was a special order for a non-standard ring size* or if you ordered a Bespoke Item made to order, we regret that it can only be able to return it to us if it is faulty, as it will have been specially made and cannot be resold. *Standard Rings Sizes - Ladies I - O, Gents L - V

    Cancellation & Return

    We are confident you will be delighted with your Hatton Jewels purchase.

    However, you do have the option of returning items to us within 30 days of receipt for a full refund or exchange if you decide that the item is not right for you or the goods are faulty. We regret that we cannot offer refunds or exchanges on goods that have been worn, damaged or have had any alterations by a third party. Returned items can only be accepted if they are:

  • In the same condition they were received
  • With all original paperwork and documents
  • In the original packaging
  • Via the returns procedure detailed below
  • Failure to do so will result in the item being returned to you. Please complete the following procedure should you decide to make a return.
  • Call us on 0203 116 0069 or e-mail info@hattonjewels.com within 30 days from the receipt of your purchase. We will give you a unique authorisation code which you must write on the original invoice which you need to include in the package.

    Address your package to Hatton J Ltd, 5 Hatton Place, London, EC1N 8RU. For security reasons please do not write ‘Jewels’ anywhere on the outside of the package.

    Post the parcel using the Special Delivery service available at the post office. We recommend that you obtain proof of posting. We cannot be held responsible for any items that are lost in transit.

    Once your package has been received by Hatton Jewels Ltd it will be assessed to verify that the item has been returned in the original condition. Once verified a full refund or exchange will then be issued.


    Every effort is made to deliver your purchase as swiftly as possible. You will be sent a confirmation of delivery date at the time your order is confirmed.

    For items that are in stock we aim to deliver to you within 5-7 days. If we cannot deliver within the agreed time we will notify you immediately and with your agreement arrange an alternative date. Items listed under 'Express Delivery' are items which are currently in stock and can be delivered within 5-7 days. Depending on the rate at which the payment clears, we might be able to deliver it to you sooner.

    All items dispatched are fully covered by insurance whilst in transit, and must be signed for on delivery. At this point they become the property of the purchaser and our insurance no longer applies. Please be satisfied that the parcel has in no way been tampered with in transit before accepting delivery.

    Hatton Jewels Ltd shall not be liable for any delay or failure to perform any of its obligations or promises if the delay or failure results from events or circumstances outside its reasonable control.

    Information on our website

    Whilst we make every attempt to ensure that our online catalogue is as accurate as possible errors can occur. Prices are subject to change without notice and will be confirmed upon receipt of your order. We may alter images for presentation purposes. Colour and size may vary slightly due to different monitors.

    If a product is not in stock and we are able to replicate it, this does not apply to antique pieces, Hatton Jewels guarantee the carat weight listed on the product as minimum and guarantee the same quality of gemstone, metal and workmanship for the order placed.

    Lifetime Warranty

    All Hatton Jewels handmade pieces come complete with a lifetime manufacturer’s warranty that covers any manufacturing defects and any necessary repair will be conducted free of charge under the following terms and conditions:

  • The item is identified by our production department as being defective as a result of a manufacturing default.
  • The item has not had any damage as a result of mishandling or Inappropriate impact (eg. knocks, dents or pressure), and has had no alteration, manipulation, repair or care by a service provider apart from ourselves or is the consequence of normal wear and tear.
  • Proof of purchase must be presented.
  • This does not apply on antique pieces or signed jewellery.
  • In order to ensure all stones are secure within your piece we advise having your piece checked by a jeweller at regular intervals.

    If purchased from ourselves even if not covered by guarantee we endeavour to resolve at the lowest price possible

    Repairs and Alterations

    All repairs on jewellery that has not been purchased through Hatton Jewels are completed at the customer’s risk. We will guarantee the specific work we complete for 1 year.


    If you have a complaint or concern please contact:

    Hatton Jewels Ltd

    5 Hatton Place
    EC1N 8RU
    Tel: 0203 116 0069
    e-mail : info@hattonjewels.com