Please note that our size charts are only to be used as a guide, as fit can vary due to hand a finger shape.
Still unsure of your rings size?
Place your credit card on the screen according to the template below. Use the + and - buttons to adjust the slider until the bronze lines match the height of your card.
Place your ring on the circle below. Use the + and - buttons to adjust the size of the circle until you cant see any of the grey within the ring.
Please find our recommended rings size below.
We reccommend the UK size above
Please note that our size charts are only to be used as a guide.
Every great piece has a story.
Once is dedicated to providing the best online and offline fine jewellery experience.
Whether you’re a veteran or absolutely new to the world of personal shopping, Once can help.
Our personal shoppers can give you a hand with buying a gift, completing your jewellery wardrobe, finding that specific piece you have in mind but can’t find anywhere, and much more.
We have a full merchant catalogue of products and direct relationships with designers that allow us to source almost anything you have in mind.
No task is too big or small for us. Just ask us.
Our customer support team is made up of qualified jewellery professionals with a deep understanding of materials and styles.
They are specifically trained to deal with the nuances of fine jewellery, and here to help put your mind at ease.
We can help with:
Our experience doesn’t end at the checkout. We are dedicated to helping you with any resizing, repair or refresh requests you may have, post purchase.
We will arrange the piece to be picked up and delivered back to you. Simply contact our Customer Support team above.
We are working tirelessly to introduce exciting fine jewellery experiences the world’s never seen before. Watch this space…