Step 1
Design & Selection
We finalise your design and hand-pick the certified center stone.
Save 20%This ring is built around a proportion trick. The band is drawn as thin as a shank can safely be made, and the two round accents beside the radiant are kept deliberately small. Against that restraint the radiant cut centre stone looks enormous. Nothing on the ring is scaled up to match the diamond, so the diamond is the only thing your eye has to measure.
The radiant itself is a cropped corner rectangle cut with a brilliant pattern beneath, which means it holds the crisp architectural outline people love in an emerald cut but throws the broken fire of a round. On a whisper thin band that fire has nowhere to hide.
The shank is a very fine rounded wire that tapers as it approaches the head, so the accents appear to sit directly on the finger. A band this slim makes the centre stone look at least a size larger than the same diamond on a standard shank. It stays light on the hand and disappears under a stacked band.
Choose from 925 sterling silver, or 10K, 14K and 18K gold in yellow, rose or white. Yellow gold gives the thin shank a warm hairline that flatters the rectangular outline. Rose gold makes it gentler. White gold and sterling silver make the band recede almost completely so the diamond appears to float. Every metal is finished by hand in our workshop.
This ring is available in a full range of US sizes. Select your size at checkout. If you are unsure of the size, contact us and we will help you measure at home before the ring is made.
We make every ring to order, which means the design can be adjusted. Ask us about a slightly wider shank, larger side stones, a different carat weight or centre shape, an engraving inside the band or a matching wedding band. Write to us through https://mapplegems.com/pages/contact and a member of our team will reply with drawings and a quote.
Is a thin band strong enough for daily wear?
Yes in 10K, 14K and 18K gold, which is why we recommend those metals for this design. We build the shank to a safe minimum thickness and reinforce it where it meets the head. Sterling silver is softer and better suited to occasional wear.
Does a thin band really make the diamond look larger?
It does. The eye judges the stone against whatever sits beside it, so a narrow shank and small accents give the centre nothing to compete with. It is the cheapest way to gain apparent size.
What is a radiant cut diamond?
A radiant cut is a rectangular or square stone with cropped corners and a brilliant faceting pattern. It combines the clean outline of an emerald cut with the sparkle of a round brilliant.
Is a lab grown diamond a real diamond?
Yes. A lab grown diamond has the same carbon crystal structure, hardness, refractive index and fire as a mined diamond. The only difference is that it was grown in a controlled environment rather than pulled from the ground.
Will I receive a certificate?
Yes. An IGI certificate for the center stone is included with every order at no additional cost.
Can this ring be resized later?
Yes. A plain unstoned shank is the easiest kind of band to resize, in either direction, because there is no pave to disturb.
Which metal is best for daily wear?
14K and 18K gold are the most durable choices for a ring worn every day. 10K is harder still. Sterling silver is softer and suits gentler wear or a first ring.
A lab grown diamond gives you the same optical and physical properties as a mined stone at a far better price for the size and quality. Because the growth conditions are controlled, high color and high clarity stones like the E VVS2 used here are available in large carat weights that would be rare and costly in mined goods. It is also a traceable choice, with a known origin and no mining footprint.
Mapple Gems is a fine jewelry maker based in Surat, India, a city that has cut and polished diamonds for generations. We design and build every piece in our own workshop, from setting the center stone to the final polish, which lets us control quality at each step and offer custom work that larger retailers cannot. We work only with lab grown diamonds and responsibly sourced gemstones.
Pay over time with Affirm, Shop Pay or Klarna — 0% APR options available at checkout. All major cards and PayPal accepted.
Compare ring sizes across international standards — match your size from any region.
| USA · Canada | UK · Australia Ireland · NZ |
Japan · India China · S. Africa |
Spain · Italy Neth. · Switz. |
Inside Ø & Circumf. (mm) |
|---|---|---|---|---|
| 4 | H | 7 | 6.75 | 14.88 & 46.80 |
| 4.25 | H.5 | 7.5 | 15.09 & 47.40 | |
| 4.5 | I | 8 | 8 | 15.29 & 48.00 |
| 4.75 | J | 8.75 | 15.49 & 48.70 | |
| 5 | J 1/2 | 9 | 9.25 | 15.70 & 49.30 |
| 5.25 | K | 10 | 15.90 & 50.00 | |
| 5.5 | K 1/2 | 10 | 10.5 | 16.10 & 50.60 |
| 5.75 | L | 11.25 | 16.31 & 51.20 | |
| 6 | L 1/2 | 11 | 11.75 | 16.51 & 51.90 |
| 6.25 | M | 12 | 12.5 | 16.71 & 52.50 |
| 6.5 | M 1/2 | 13 | 13.25 | 16.92 & 53.10 |
| 6.75 | N | 13.75 | 17.12 & 53.80 | |
| 7 | N 1/2 | 14 | 14.5 | 17.32 & 54.40 |
| 7.25 | O | 15 | 17.53 & 55.10 | |
| 7.5 | O 1/2 | 15 | 15.75 | 17.73 & 55.70 |
| 7.75 | P | 16.25 | 17.93 & 56.30 | |
| 8 | P 1/2 | 16 | 17 | 18.14 & 57.00 |
| 8.25 | Q | 17.5 | 18.34 & 57.60 | |
| 8.5 | Q 1/2 | 17 | 18.25 | 18.54 & 58.30 |
| 8.75 | R | 19 | 18.75 & 58.90 | |
| 9 | R 1/2 | 18 | 19.5 | 18.95 & 59.50 |
| 9.25 | S | 20.25 | 19.15 & 60.20 | |
| 9.5 | S 1/2 | 19 | 20.75 | 19.35 & 60.80 |
| 9.75 | T | 21.5 | 19.56 & 61.40 | |
| 10 | T 1/2 | 20 | 22 | 19.76 & 62.10 |
| 10.25 | U | 21 | 22.75 | 19.96 & 62.70 |
| 10.5 | U 1/2 | 22 | 23.25 | 20.17 & 63.40 |
| 10.75 | V | 24 | 20.37 & 64.00 | |
| 11 | V 1/2 | 23 | 24.75 | 20.57 & 64.60 |
| 11.25 | W | 25.25 | 20.78 & 65.30 | |
| 11.5 | W 1/2 | 24 | 26 | 20.98 & 65.90 |
| 11.75 | X | 26.5 | 21.18 & 66.60 | |
| 12 | X 1/2 | 25 | 27.25 | 21.39 & 67.20 |
| 12.25 | Y | 27.75 | 21.59 & 67.80 | |
| 12.5 | Z | 26 | 28.5 | 21.79 & 68.50 |
| 12.75 | Z 1/2 | 29 | 22.00 & 69.10 | |
| 13 | 27 | 29.75 | 22.20 & 69.70 | |
| 13.25 | Z1 | 30.5 | 22.40 & 70.40 | |
| 13.5 | 31 | 22.61 & 71.00 | ||
| 13.75 | Z2 | 31.75 | 22.81 & 71.70 | |
| 14 | Z3 | 32.25 | 23.01 & 72.30 | |
| 14.25 | 33 | 23.22 & 72.90 | ||
| 14.5 | Z4 | 33.5 | 23.42 & 73.60 | |
| 14.75 | 34.25 | 23.62 & 74.20 | ||
| 15 | 34.75 | 24.23 & 76.10 |










Every piece is made to order — from first sketch to the final polish.
Step 1
We finalise your design and hand-pick the certified center stone.
Step 2
Master jewelers cast and shape the band to exact specifications.
Step 3
Each stone is hand-set and the piece is polished to a mirror finish.
Step 4
Final inspection, certification, and luxury gift packaging.
Real diamonds grown in a lab — chemically and optically identical to mined diamonds, graded on the same 4Cs, at a lower price and conflict-free.
All metal is solid (10K/14K/18K gold or platinum), never plated.
Yes — share your idea and we'll craft it with a CAD preview before production.
Yes, IGI/GIA certificates ship with every lab-grown diamond.
Made-to-order pieces ship in about 7–8 business days with insured tracking. Free worldwide.
Yes, we ship worldwide. Import duties may apply by country.
All major cards, PayPal, and installments via Shop Pay / Klarna / Afterpay.
30-day return or exchange on eligible items. Custom/engraved pieces are non-returnable except for defects. Refunds issued ~2 days after inspection.
Yes — one complimentary resize after delivery; contact us with your new size.
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