Step 1
Design & Selection
We finalise your design and hand-pick the certified center stone.
Save 20%A radiant cut lab grown diamond sits in a hidden halo basket on a pave set band, so the ring reads as a clean single stone from above and reveals a ring of small diamonds under the centre only when you look at it from the side. The radiant is a crushed ice cut, meaning its facets are broken into many small reflective sections rather than the long open steps of an emerald cut. That is why a radiant sparkles like a round brilliant while keeping a rectangular outline. Every stone is E colour, VVS2 clarity, and the centre diamond ships with a free IGI certificate. Made to order in Surat in ten metal choices and four carat weights.
Available in 925 sterling silver, 10K yellow gold, 10K rose gold, 10K white gold, 14K yellow gold, 14K rose gold, 14K white gold, 18K yellow gold, 18K rose gold and 18K white gold. A hidden halo shows most clearly in a white metal, because the small stones under the basket read as a bright band rather than blending into warm gold. In yellow or rose gold the halo becomes a quieter detail that only the wearer really notices. For daily wear we recommend 14K, which is harder than 18K and holds bead set pave better over the years.
Each ring is made to your finger size, so select your size at checkout. If you are unsure of the size, measure the inside diameter of a ring you already wear or request our free size guide before ordering.
We can remove the hidden halo, extend the pave all the way round as an eternity band, switch to a cathedral shank, or set the radiant east to west. For any other customization request please contact us at https://mapplegems.com/pages/contact.
What is a hidden halo?
It is a ring of small diamonds set around the outside of the basket, below the centre stone. From directly above you do not see it. From the side and on the hand it adds a line of light under the main diamond and makes the centre look slightly larger.
Why does a radiant cut look different to an emerald cut?
Both are rectangular, but an emerald cut has long open step facets that show flashes of light, while a radiant has brilliant style faceting that breaks light into many small sparkles. A radiant is the better choice if you want a rectangular shape with round brilliant fire.
Is a lab grown diamond a real diamond?
Yes. It has the same carbon structure, hardness and optical properties as a mined diamond. The only difference is that it was grown in a laboratory rather than formed underground.
Do I get a certificate?
Yes. A free IGI certificate for the centre stone is included with every order, recording its colour, clarity, cut grade and carat weight.
Will the pave stones fall out?
Bead set pave is secure when it is cut properly, and ours is set by hand and checked before dispatch. We also offer a lifetime prong and bead check, so bring the ring in or send it back for a service and we will tighten anything that has moved.
Which carat suits my hand?
A 2 carat radiant reads as a substantial but wearable stone on most hands. At 4 and 5 carat the ring becomes a statement piece and covers more of the finger. Because a radiant is rectangular it looks larger than a round of the same weight.
How long does it take to make?
Production usually takes ten to fourteen working days from order, plus shipping time.
A lab grown diamond delivers identical brilliance and durability to a mined stone at a far lower price, which is what makes a certified 4 or 5 carat radiant realistic rather than aspirational. It is created without mining, so there is no excavation and no uncertainty about where the stone came from. Every centre stone we set is independently certified.
Mapple Gems is a made to order fine jewellery workshop based in Surat, India, one of the world's main diamond cutting centres. We set lab grown diamonds and moissanite in solid gold and sterling silver, and we make each piece only after it is ordered, which keeps prices low without holding stock. Questions before you buy are welcome at https://mapplegems.com/pages/contact.
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.
The Mapple Gems Promise
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