• Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 2
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 3
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 4
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 5
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 6
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 7
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 8
  • Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian, view 9
1 9

discomarshmallow

Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian

Caliber Step Cut Lab Grown Emerald Ring, Zambian or Colombian

£1,095.00 GBP
£1,095.00 GBP
Sale Sold out
Shipping calculated at checkout.
Discomarshmallow · Ring sizing

Find your ring size

Every ring we make is true to size in US measurements. If you usually shop in UK, European, Japanese or another system, here's exactly what to order — and how to measure at home in two minutes.

i.

The size converter

Tell us your size in your own system, or a measurement you've taken, and we'll show you the US size to select at checkout — plus every international equivalent.

Your size, in your own system
Your measurement in millimetres

Wrap a strip of paper around your finger, or measure across the inside of a ring you own. Not sure how? See "Measure at home" just below.

Order this size
US 7

True to size — select 7 at checkout.

UK / AU
N½
EU / ISO
54
Japan
14
Diameter
17.3mm
Circumf.
54.4mm
ii.

Measure at home

No ring sizer needed. Either method takes a couple of minutes — measure the same finger and hand you'll actually wear the ring on.

Most accurate

Measure a ring you own

  1. Pick a ring that already fits the right finger.
  2. Measure straight across the inside of the band, edge to edge, in millimetres — that's the inside diameter.
  3. Switch the converter to “I measured it”, choose Diameter, and enter the number.

Once you have a measurement, pop it into "I measured it" in the converter above and we'll show your US size.

No ring needed

Measure your finger

  1. Cut a thin strip of paper or take a length of string.
  2. Wrap it snugly around the base of your finger and mark where it overlaps.
  3. Lay it flat, measure the length in millimetres, then enter it as the Circumference above.

Measure at the end of the day when fingers are largest, and not when your hands are cold — both make a real difference.

iii.

Full conversion chart

Find your size in any column and read across. The millimetre measurements are the true size — every label is the closest standard match to them.

US / Canada UK / AU EU / ISO Japan Inside ⌀ (mm) Circumference (mm)

UK & Australia share the same letters; Ireland and New Zealand use them too. EU / ISO numbers are the inside circumference in millimetres. Where a row falls between two sizes in another system, we've rounded to the nearest.

iv.

Getting the fit right

A ring should slide over the knuckle with a little resistance and sit comfortably at the base — a slight pause coming off, never a struggle.

◇ Between two sizes?

Choose the larger one. A ring that's slightly loose is far easier to live with — and to resize — than one that's too tight.

◇ Wide or stacked bands

Anything wider than about 6 mm, plus eternity and stacking styles, usually needs a half size up — there's less room for the finger.

◇ Larger knuckle

If your knuckle is wider than the base of your finger, measure both and pick a size in between, so the ring clears the knuckle but won't spin.

◇ Time & temperature

Fingers swell across the day and in the heat, and shrink in the cold. Measure warm and late for the most reliable result.

Printable ring sizer

Print this page at 100% / Actual size — do not select “Shrink” or “Fit to page”. Check the result by holding a bank card against the dashed box: it should measure exactly 85.6 mm wide. Then lay a ring you own over each circle and find the one that matches the inside of the band.

Hold a bank card here — 85.6 mm × 53.98 mm

Every discomarshmallow ring is cut and set to order, in US sizing.

Sizing a surprise, or still caught between two? Send us your finger's circumference in millimetres before you order and we'll confirm the size with you.

Conversions are the closest standard match · the millimetre measurement is the true size
Ring Size
Emerald Origin
  • Solid 14K & 18K gold, made to order in our own atelier
  • Free shipping to the US & Canada — import duties included
  • 4.98 from 66 verified reviews

At the centerpiece of this lab grown Zambian emerald ring is a radiant 1.5 ct emerald, set east west to highlight its natural allure. Flanking it are calibre cut emeralds, each uniquely shaped to create a seamless gradient effect, making every ring truly one-of-a-kind. Set in luxurious 18K yellow gold, this ring exudes timeless charm.

What makes it truly special? Calibre cut stones are individually shaped to fit precisely into the design, resulting in a mesmerizing display of color and brilliance. Rare and exceptional, this ring offers a touch of luxury with a modern twist. And the best part? It's customizable with rubies, sapphires, moissanites, and lab grown diamonds, ensuring a perfect match for every taste.

Lab Grown Gems: Our lab grown stones are not synthetic, or treated. These are 100% sapphires, emeralds or diamonds just like a natural sapphires, emeralds or diamonds. Only difference is that it was grown in a lab instead of the ground!

Item Details

• Made to Order.
• Gold Kt: 18K Solid Gold
• Cut: Emerald, Calibre Step
• Setting Type: Georgian/Victorian
• Ready to Ship in 3-5 weeks

Questions? Click the Chat button at the bottom right corner of the page and we’ll get back to you within a few hours.

US customers: we cover all import duties and taxes — your order arrives with no additional charges. International customers: we prepay most duties and taxes on your behalf. Each order is beautifully packaged, ready for gift giving.

Shipping & Returns

Shipping. Free to the United States and Canada. A flat $40 anywhere else in the world, $70 to the Gulf states — expedited, tracked and signed for. We prepay import duties and taxes on your behalf, so US orders arrive with nothing extra to pay at the door.

Timing. Ready-to-ship pieces leave the atelier within 1–3 business days. Made-to-order pieces are built for you and take about 4 weeks.

If something is wrong. Almost everything we make is made to order, so we don't run general returns or exchanges. What we do instead: if a piece arrives faulty or damaged, send us a photo within 7 days and we will repair or remake it and cover shipping both ways. If a parcel is lost in transit, we remake it. You are never left holding a broken piece.

Questions before you order? Use the chat button, or email info@shopdiscomarshmallow.com — we reply within 1–2 business days.

View full details