Step 1
Design & Selection
We finalise your design and hand-pick the certified center stone.
Save 20%An emerald cut lab grown diamond framed by a rectangular halo of pave diamonds, with hand raised milgrain running around both the inner and outer edges of the halo and a pave set band leading into it.
The halo follows the outline of the centre stone exactly, corner for corner, rather than rounding it off. That is what keeps the ring looking like an emerald cut design instead of a generic halo. Because the halo is set slightly proud of the stone, the whole head reads as one larger rectangle on the finger, which is why halos remain the most effective way to add visual size.
The milgrain is what makes it feel antique. Two fine lines of raised beads border the diamond row, softening the edge of the metal and giving the light something to catch even where there are no stones. Our setters raise these beads one at a time with a hand tool.
The centre stone is held by ball tipped claws at its four corners, and the shoulders carry a graduated row of pave that narrows as it runs toward the plain polished back of the band.
Made to order 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 or 18K white gold. White gold and 925 sterling silver, shown here, give the classic antique platinum look. Yellow gold outlines the halo clearly for a warmer Edwardian feel, and rose gold softens it further.
Ring size is fully customisable. Choose your size at checkout or write to us with the size you need, including quarter sizes, half sizes and sizes outside the standard range. If you are unsure of your size, we will send you a simple way to measure at home before we begin.
Every ring is made to order. You can request a different centre carat weight, a different colour or clarity grade, a coloured centre stone such as emerald or sapphire, a halo of coloured stones, a plain band, or an engraving inside the shank. Write to us at mapplegems.com/pages/contact and we will quote before making anything.
Is the centre stone a real diamond?
Yes. A lab grown diamond is the same carbon crystal as a mined diamond, with the same hardness of 10 on the Mohs scale and the same brilliance. Only the origin differs.
Is a certificate included?
Yes. An IGI certificate for the centre stone is included at no extra cost and states carat weight, colour, clarity, measurements and laboratory grown origin.
How is this different from your other halo emerald cut rings?
This halo is rectangular, follows the corners of the centre stone, and is bordered by milgrain on both edges. Our floating halo uses larger round diamonds in open bead prongs, and our sunburst design radiates the stones outward. This is the most traditional and the most antique in character.
Does the halo make the diamond look bigger?
Yes. Because the halo is set close around the stone and follows the same rectangular outline, the eye reads the whole head as a single larger diamond, typically adding the appearance of a half carat or more.
Will a wedding band sit flush against it?
The halo sits low, so a straight band meets it closely at the sides. A contoured band gives the closest fit and we can make one with matching milgrain.
Will the milgrain wear away?
It is raised from solid metal rather than applied on top, so it wears very slowly. After many years a jeweller can sharpen it again if needed.
Which carat weight suits this ring?
All four are made for it. At 2 carat the halo makes a real difference to the ring size on the hand. At 4 or 5 carat it becomes a fine decorative frame rather than a size booster.
How do I clean it?
Warm water, a drop of mild dish soap and a soft brush. Brush around the halo and under the setting where dust collects, then rinse and dry with a soft cloth.
How long does it take to make?
Each ring is made to order, so please allow our standard making time from the day your metal and size are confirmed. We will confirm the schedule when you order.
Lab grown diamonds have the same composition, hardness and brilliance as mined diamonds at a fraction of the price, which is what makes a large emerald cut with a fully set halo achievable. Every centre stone we set is grown in a controlled laboratory and graded by IGI before it reaches our bench.
Mapple Gems is a jewellery workshop in Surat, India. A rectangular halo is harder to set than a round one, because the corners have to turn cleanly without the spacing of the stones changing, and then two lines of milgrain have to follow that same outline. It is bench work that rewards patience. Buying from us means dealing directly with the people making your ring, so changes in carat weight, metal, stone colour or halo style are ordinary requests.
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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