Step 1
Design & Selection
We finalise your design and hand-pick the certified center stone.
Save 20%An elongated radiant cut lab grown diamond held in four claws on a slim rounded shank. The stone runs lengthwise along the finger and nothing else on the ring competes with it. No accents, no halo, no shaping in the band.
An elongated radiant is one of the largest looking cuts available. It has the cropped corner outline of an emerald cut but a brilliant faceting pattern underneath, so it holds the crisp rectangular shape while throwing the broken fire of a round. Stretched longer, that rectangle covers a striking amount of finger, and on a narrow plain shank there is nothing beside it to make it look smaller.
The shank is a slim band with a rounded outer profile and a smooth polished surface running unbroken from the head all the way around. Because nothing is set into it, the ring is straightforward to resize, easy to engrave inside, and it will pair with any wedding band you choose later. The rounded profile also sits comfortably against neighbouring fingers.
Choose from 925 sterling silver, or 10K, 14K and 18K gold in yellow, rose or white. Yellow gold gives the long rectangle a warm border that makes the outline unmistakable. Rose gold reads softer and more contemporary. White gold and sterling silver make the claws vanish so the diamond appears to sit directly on the finger. 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 hidden halo under the radiant, an east west orientation, a pave shank, a different carat weight, 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.
What is a radiant cut diamond?
A radiant cut is a rectangular or square stone with cropped corners and a brilliant faceting pattern underneath. It combines the clean outline of an emerald cut with the fire of a round brilliant, which is why it sparkles far more than a step cut of the same shape.
What does elongated mean?
It refers to the length to width ratio. An elongated radiant is stretched into a longer rectangle rather than a near square, which covers more finger for the same weight and makes the hand look longer.
Are the corners of a radiant fragile?
No. The corners are cropped rather than pointed, which is precisely why the cut was designed that way. It is one of the more durable fancy shapes and needs no special protective claws.
Does a plain shank make the diamond look bigger?
Yes. With no accents beside it the eye has nothing to measure the stone against, and a narrow band makes the head look proportionally larger.
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.
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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