How to measure ring size — plus how to save £100s on an engagement ring this Cyber Monday

Learn how to measure ring size in time for the Cyber Monday sales...

engagement ring on pink background
(Image credit: Getty)


Most women know their dress, shoe and bra size off-by-heart, but the question of ring size leaves most stumped. Luckily we’ve got the answer, with our simple guide on how to measure ring size.

The easiest way to measure ring size if of course with a ring sizer. These tend to come in metal or plastic form, and can be picked up for as little as £1.40 on Amazon. If you’re a Prime Member, you could receive yours as soon as tomorrow - just in time to take advantage of the Cyber Monday sales.

How to measure ring size at home

Short on time? No problem. Websites such as Vashi offer printable ring sizers. All you need to do is tie a piece of string around your finger, measure the length with a ruler, and compare it with the sizes on the guide. You could do this without a printer too.

If you don’t have any string or ribbon in the house, simply place a ring that you know fits onto the sizing print out.

How to measure ring size for someone else

Finding out someone else's ring size is tricky business, as it’s not likely to be something that crops up naturally in conversation.

If it’s for a special surprise like an engagement, we’d recommend asking your partner’s friends first to see if they know their size. If not, snoop in your partner’s jewellery box for a ring they already own. You can then take that to a jeweller for their help, or measure it yourself using a plastic, metal or printed ring sizer. 

Best Cyber Monday engagement rings to buy now

Vera Wang 18ct White Gold 0.95ct Diamond Cluster Ring: £3750, £1875 (save £1875) | Ernest Jones

Saving you nearly £2,000 compared to the RRP, deals this good don't crop up very often, so move to quick to avoid missing out. View Deal

The Diamond Story 18ct Yellow Gold 1/2ct Diamond Ring: £1999, £999 (save £1000) | Ernest Jones

An extra sparkly take on the classic solitaire, this cluster ring is made up of 10 shimmering diamonds. View Deal

Tolkowsky Platinum 1/2ct Diamond Ring: £4250, £2125 (save £2125) | Ernest Jones

One for the classic bride, this four claw, single stone ring is truly timeless. We love the platinum band too. 


View Deal

Beaverbrooks 18ct White Gold Diamond Marquise Cut Halo Ring: £2150, £1071 (save £1079) 

Sometimes, one diamond isn't enough. This vintage-inspired, marquise cut ring is surrounded by a halo of smaller stones. View Deal

18ct Gold Diamond Solitaire Ring: £2450, £1312 (save £1138) | Beaverbrooks

This beautiful brilliant cut diamond is held in place by six white gold claws to max out on sparkle. View Deal

Vera Wang 18ct White Gold 0.45ct Pear Shaped Cluster Ring: £1999, £999 (save £1000) | Ernest Jones

A name synonymous with all-things bridal, Vera Wang know a thing or two about what makes a show stopping piece, and this pear-shaped ring is no exception. View Deal

18ct Yellow Gold 0.75ct Brilliant Cut Diamond Three Stone Ring: £3,000, £1500 (save £1500) | Goldsmiths 

A really luxurious ring at half price, now's the time to add to basket for the perfect proposal. View Deal

Tanzanite and Diamond Set Ring in 18 Carat White Gold: £3000, £2250 (save £750) | Goldsmiths

This Tanzanite ring takes on different hues in different lights, switching between lilac, bright blue and burgundy. Magical. View Deal

18ct White Gold Diamond & Sapphire Ring: £999, £699 (save £300) | Ernest Jones 

This one reminds us of a certain royal engagement ring, but at a fraction of the price. View Deal

18ct White Gold 1/3ct Forever Diamond Ring: £1250, £999 (save £251) | H. Samuel 

Offering a modern twist on the traditional engagement ring, this features an elegantly twisted band inlayed with extra diamonds. View Deal