Name: Simple Diamond Ring
Brand: One2Three Jewelry
SKU: O2T-10049-31273942188090
Price: 299.0 USD
Availability: InStock
Rating: 5.0 (1 reviews)

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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 small diamond centerpiece, with six delicate accents. This minimalist diamond ring combines a 2.5 mm round center stone with a slim 1 mm band in solid 14K gold. Choose yellow, white or rose gold for a promise, engagement or anniversary 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.

Email our team

Who is this ring for?

For someone who prefers a discreet diamond ring to a large solitaire. Its small stones and narrow band also make it an option for a personal ring stack.

Product details

Metal	Solid 14K yellow, white or rose gold
Center stone	Round diamond, 2.5 mm; approximately 0.06 ct
Side stones	6 round diamonds, 1 mm each; approximately 0.018 ct total
Diamond grade	F color / VS1 clarity, as listed
Band width	1 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

How large is the center diamond?

The center measures 2.5 mm across. This is a petite diamond design; close-up photographs can make the stone appear larger than it looks on the hand.

Is it a natural or lab-grown diamond?

The product specifications identify diamonds and their F/VS1 grade, but do not specify origin. Contact us before ordering if natural or lab-grown origin is important to you.

Can it be worn every day?

A 1 mm band is delicate. Remove it before lifting, workouts, cleaning and tasks that put pressure on the band or setting.

Will a wedding band sit flush?

Fit depends on the shape and height of both rings. Send us a photo of your wedding band so we can discuss the pairing.

Care for your ring

Clean gently with mild soap, lukewarm water and a soft brush, then dry with a soft cloth. Remove the ring before exercise, heavy lifting, cleaning or manual work, and have stone settings checked if the ring receives a knock.

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.