Step 1
Design & Selection
We finalise your design and hand-pick the certified center stone.
Save 20%The Marquise and Round Lab Grown Diamond Open Shank Wedding Band from Mapple Gems is a slim, open band with a gap at the front of the finger. One end of the opening holds a single marquise cut lab grown diamond in fine prongs, and the other end carries a short row of four small round diamonds. The long, pointed marquise and the neat row of rounds sit opposite each other, giving the ring a graceful, modern look. It works as a wedding band, an anniversary band, or a delicate stacking ring.
Style: open shank band with a prong set marquise diamond on one end and a small row of pave set round diamonds on the other.
Stones: marquise and round brilliant lab grown diamonds with a total carat weight of 0.30 CT TW. The exact stone sizes and total carat weight can vary slightly with ring size so that the proportions and fit stay balanced.
Stone quality: EF color and VS1 clarity, as given in the source specifications for this design.
Finish: high polish, with a smooth round shank that is comfortable on the finger. The product photos show the ring in yellow, rose and white gold.
This design is a delicate band with one accent stone rather than a large center stone, so the 2 to 5 carat center stone sizes used on our engagement rings do not apply to this listing.
Choose from 925 sterling silver, or solid gold in 10K, 14K and 18K. Gold is available in yellow, rose and white. Each ring is made to order in the metal you select, so please allow time for it to be crafted before it ships.
Available in US ring sizes 2 to 14. If you need a custom size, contact Mapple Gems and we will help you.
Lab grown diamond is real diamond. It has the same chemical makeup, crystal structure and physical properties as a mined diamond, but it is grown in a lab instead of being dug from the earth. It rates 10 on the Mohs scale, the highest possible hardness, so it stands up to everyday wear, and it is a conflict free choice for couples who want a bright, ethical stone.
This band suits brides who prefer an open, contemporary design over a traditional closed band, and anyone looking for an anniversary band, a push present, or a meaningful gift for her. It pairs especially well with a marquise or pear engagement ring. Some styled photos show the band worn with larger rings, which are shown for styling only and are not included.
An open shank band has a gap at the front instead of a closed circle. The ends of the ring sit side by side without touching.
Yes. The slim shank makes it a good stacking partner. Always check how it sits against your engagement ring, and tell us your ring style if you would like advice.
Yes. A lab grown diamond is a real diamond with the same chemical and physical properties as a mined one. The difference is only where it was created.
Clean it with warm water, mild soap and a soft brush, then dry it with a soft cloth. Remove it before heavy work, swimming or using harsh chemicals.
Yes. Each ring is made to order in your chosen metal and size, which lets us fit it properly to you.
Mapple Gems makes engagement rings, wedding bands and bridal ring sets in lab grown diamond and other lab created stones. Our designs are made to order in sterling silver and solid gold, so you can choose the metal and size that suit your style.
Compare ring sizes across international standards โ match your size from any region.
| USA ยท Canada | UK ยท Australia Ireland ยท NZ |
Japan ยท India China ยท S. Africa |
Spain ยท Italy Neth. ยท Switz. |
Inside ร & 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 |
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Every piece is made to order โ 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 โ 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 โ share your idea and we'll craft it with a CAD preview before production.
Yes, an IGI certificate ships with every lab-grown diamond centre stone. Moissanite pieces do not come with a grading certificate.
Made-to-order pieces ship in about 7โ8 business days with insured tracking. Free worldwide.
Yes, we ship worldwide. Import duties may apply by country.
We accept PayPal, plus major credit and debit cards through PayPal's secure checkout โ no PayPal account needed.
30-day return or exchange on eligible items. Custom/engraved pieces are non-returnable except for defects. Refunds issued ~2 days after inspection.
Yes โ one complimentary resize after delivery; contact us with your new size.
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