4 mm Emerald Engagement Ring with Diamonds

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Large ring size chart with US sizes, diameter and circumference in millimeters

How to Determine Your Ring Size

We are happy to assist you in determining the correct ring size. Figuring out your partner's ring size can be one of the most stressful aspects of purchasing an engagement ring, but there are lots of ways you can easily figure out the right size at home. The ring should fit your finger comfortably - snug enough so that it will not fall off, but loose enough to slide over your knuckle with some resistance. For example, the average ring size for women is between 5 and 7, but it’s always best to get an exact ring measurement before spending money.

How to Measure Your Ring Size at Home

Two simple ways to choose the ring size correctly

1. Select an existing ring that fits the desired finger and measure the internal diameter of the ring (in mm). Then use the chart above to determine your ring size.

2. Wrap a strip of paper around your finger where you’d like your ring to be. Make sure that the paper is pulled snug to your finger, the tighter the better, to find your best fit. Mark the spot where the paper meets and measure the distance with a ruler (mm).

It's important! Your fingers tend to change size throughout the day — the best time to measure your finger is the end of the day.
If you are between sizes, order a larger size. Make sure your finger is at a normal body temperature -- fingers can shrink or expand when cold or hot. If your knuckle is much larger than your finger’s base, take two separate measurements and choose a size in between. You want a ring to fit over your knuckle, but not be too loose or it will shift around.

At One2Three Jewelry, we offer resizing in 30-day period, so that you can make sure your purchase is just right.

A natural emerald with two small diamond accents. This emerald engagement ring features a 4 mm center emerald and two 1.25 mm round diamonds in solid 14K gold. Choose yellow, white or rose gold for a delicate green gemstone ring.

Questions before ordering? Ask about the size, materials, a custom change or your delivery deadline. Please mention this exact ring so we can help with your design.

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Who is this ring for?

For someone who prefers a colored gemstone to a diamond solitaire. It can mark an engagement, anniversary or May birthstone gift, with the emerald remaining the focus.

Product details

Metal	Solid 14K yellow, white or rose gold
Center stone	Natural emerald, 4 mm
Side stones	2 round diamonds, 1.25 mm each
Diamond grade	F color / VS1 clarity, as listed
Listed band thickness	1.2 mm
Ring size	Select from the sizes available in this listing

Choose your ring size

Use a jeweler's measurement or a proper ring sizer for the best starting point. Check our ring size guide and ask us if you are between sizes or buying a surprise gift. Select the size and any available finish or letter carefully before checkout.

Questions about this design

Is the emerald natural?

Yes, it is listed as a natural emerald. Ask us about treatments or documentation for the stone available for your order before purchasing.

How big is the emerald?

The emerald measures 4 mm. This measurement describes the gemstone, rather than the overall size of its setting; carat weight is not specified.

Will the emerald look exactly like the photographs?

Natural emeralds can vary in green tone and visible inclusions. Ask about the stone available for your order if a particular shade matters to you.

Is an emerald suitable for everyday wear?

Emerald needs careful wear. Remove the ring before exercise, heavy work and tasks that could strike the stone. Avoid steam and ultrasonic cleaning.

Care for your ring

Use lukewarm water, mild soap and gentle cleaning with a soft brush; dry with a soft cloth. Avoid ultrasonic cleaners, steam, harsh chemicals and excessive heat.

Production, delivery and gifting

Your ring is handcrafted to order. Standard production takes 7–15 business days; engraving can add up to 3 business days. Production time is separate from shipping time. Orders of $100 or more qualify for free tracked shipping. Packaging includes a branded jewelry box and a soft pouch.

Check our production and shipping information for destination estimates. If you have a proposal, wedding or gift date, contact us before purchasing so we can check the schedule. Returns and resizing depend on eligibility and exclusions; read the returns and resizing terms before ordering.

Ask for a custom version

Tell us your preferred size, finish or metal, delivery country and deadline. Share photographs if you want a matching band or a design change. We will confirm feasibility, price and timing before you order a custom version.