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  • JewelleryJewellery
    Shop By Style
    • Bracelets & Bangles
    • Brooches & Pins
    • Charms
    • Earrings
    • Necklaces
    • Men's
    • Pendants
    • Rings
    • Explore All Styles
    Shop By Metal
    • Silver
    • 9ct Gold
    • 18ct Gold
    • Platinum
    • Explore All Metals
    Personalised
    • Bubbles
    • Cradle of Love
    • Ashes Jewellery
    • Moon Signs

    One Of A Kind

    Truly unique, Catherine Best One of a Kind creations celebrate rare beauty, exceptional craftsmanship, and individuality in every detail.

    Gemstone Earrings

    Explore our stunning earrings, where unique gemstones and elegant design offer a fresh take on classic and modern luxury.

  • Engagement & WeddingEngagement & Wedding
    Engagement
    • Engagement Rings
    • Book an Appointment
    Wedding
    • Bespoke Band Creation
    • Bespoke Gift Creation
    • Bridal Party Gifts
    • Grooms Jewellery
    • Something Blue Jewellery
    • Wedding Bands
    • Wedding Jewellery
    • Explore All Wedding
    Anniversary
    • 19th Bronze
    • 25th Silver
    • 30th Pearl
    • 40th Ruby
    • 50th Gold
    • 55th Emerald
    • 60th Diamond
    • Explore All Anniversary

    Wedding Day Jewellery

    Make your wedding day unforgettable with our bridal jewellery, handcrafted to enhance life’s most treasured moments.

    Innamorato Ring Catherine Best

    Engagement Rings

    Our engagement rings are crafted to last a lifetime, symbolising eternal love and every cherished moment you share.

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    • Paraiba Tourmaline
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    • Year of the Horse

    Year of the Horse

    Celebrate the Year of the Horse with Catherine Best jewellery, inspired by strength, freedom and elegance, crafted to be cherished.

    Clematis Collection

    As the Chelsea Flower Show returns in all its floral splendour, we are delighted to celebrate one of our most beloved nature-inspired collections.

  • GiftsGifts
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    Love Letters

    Timeless, personal, unforgettable, Catherine Best Love Letters jewellery transforms emotion into beautifully crafted keepsakes to cherish always

    June Birthstone

    Mark a June birthday with Catherine Best's Pearl jewellery, symbolic of wisdom and quiet integrity.

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RING SIZE GUIDE

The one thing that tends to baffle those who are looking for the perfect ring is determining their ring size. If you are looking for a ring as a gift for that special someone, this process becomes twice as difficult, especially if you wish for the ring to be a surprise. Luckily here at Catherine Best we have created a Ring Size Guide that explains the process of finding the perfect ring size, with a few key tips for ensuring that it fits comfortably and securely.

HOW TO MEASURE YOUR RING SIZE

This guide offers two methods of measuring for your ring size. If you already own a ring or have managed to obtain one from the person that you are buying the ring for, simply measure the inside diameter of the ring and match the size to the chart. If you don't have a ring, simply measure the intended ring finger and match the measurement to the chart.

TIPS FOR MEASURING YOUR RING SIZE

If using a ring to measure, ensure that you select a ring that fits the intended ring finger. If measuring a finger, measure towards the end of the day when the finger is warm. When your fingers are cold there can be up to half a size difference. Rings that have a thicker band feel tighter than those that have a thinner band. If buying a thicker band, look to buy a full ring size bigger to allow room for movement.
Your ring should always fit comfortably on your finger without any fear of it falling off.

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Why not order our FREE ring sizer? Allowing you to measure your ring size at home, this free sizer is ideal for those looking to purchase a ring. Simply add this Ring Sizer to your bag and it will be delivered to you free of charge.

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You can print our PDF printable ring size guide here.

Finger Circumference (mm) UK Size EU Size US Size
37.8 A --- 1/2
39.1 B --- 1
40.4 C --- 1 1/2
41.7 D 41 1/2 2
42.1 D 1/2 42 1/8 2 1/4
42.9 E 42 3/4 2 1/2
43.4 E 1/2 43 3/8 2 3/4
44.2 F 44 3
44.4 F 1/2 44 5/8 3 1/4
45.5 G 45 1/4 3 1/2
45.7 G 1/2 45 7/8 3 3/4
46.8 H 46 1/2 4
46.8 H 1/2 47 1/8 4 1/4
48.0 I 47 3/4 4 1/2
48.7 J 48 3/8 4 3/4
50.0 K 49 5/8 5 1/4
50.2 K 1/2 50 1/4 5 1/2
51.2 L 50 7/8 5 3/4
51.5 L 1/2 51 1/2 6
51.9 M 52 1/8 6 1/4
52.5 M 1/2 52 3/4 6 1/2
53.1 N 53 5/8 6 3/4
54.5 O 54 7
54.8 O 1/2 54 5/8 7 1/4
55.7 P 55 1/4 7 1/2
56.4 P 1/2 55 7/8 7 3/4
57.1 Q 56 1/2 8
57.6 Q 1/2 57 1/8 8 1/4
58.4 R 57 3/4 8 1/2
59 R 1/2 58 3/8 8 3/4
60 S 59 9
60.6 S 1/2 59 5/8 9 1/4
61.3 T 60 7/8 9 3/4
62.3 T 1/2 61 1/2 10
62.7 U 62 1/8 10 1/4
63.4 U 1/2 62 3/4 10 1/2
63.8 V 63 3/8 10 3/4
64.9 V 1/2 64 11
65.3 W 64 5/8 11 1/4
65.7 W 1/2 65 1/4 11 1/2
66.5 X 65 7/8 11 3/4
67.5 Y 66 1/2 12
68.1 Y 1/2 67 1/2 12 1/4
68.7 Z 67 3/4 12 1/2
69.4 Z 1/2 68 3/8 12 3/4

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