Step 1
Design & Selection
We finalise your design and hand-pick the certified center stone.
Save 20%An oval cut lab grown diamond with a tapered baguette diamond on each side, set on a plain polished band. A tapered baguette is a long rectangular step cut whose two long sides are not parallel, so the stone is wider at one end than the other and narrows as it runs away from the centre.
This is the oldest device in three stone design and it exists to solve a specific problem. Side stones have to bridge the gap between a wide centre stone and a narrow shank, and a rectangular or round side stone makes that transition in one abrupt step. A tapered baguette makes it gradually, because its own outline is already doing the narrowing. The eye follows the taper down from the widest point of the oval to the width of the band without ever meeting an edge, which is why this arrangement has stayed in continuous use since the nineteen twenties while most three stone fashions have come and gone.
The shank is a plain polished band, kept narrow so the tapered baguettes can carry the width down to it without a visible step. It is left free of stones, which means it resizes easily and can be engraved inside.
Choose from 925 sterling silver, or 10K, 14K and 18K gold in yellow, rose or white. Yellow gold is shown here and warm metal separates the three white stones clearly so the taper is easy to read. Rose gold does the same more softly. White gold and sterling silver let the baguettes flow into the oval so the trio reads as one tapering form.
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 for trapezoid or half moon sides, two baguettes per side, a pave shank, a hidden halo, a different centre shape 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 tapered baguette?
A long rectangular step cut diamond whose two long sides are not parallel, so it is wider at one end than the other. Set with the wide end against the centre stone, it carries the width of the design smoothly down to the band.
Why use step cut sides with a brilliant centre?
The contrast is deliberate. Baguettes give broad calm flashes while the oval gives fine sparkle, so the side stones frame the centre instead of competing with it.
Are baguettes more fragile than round stones?
Their corners are the vulnerable point, which is why they are set with metal covering each corner rather than left exposed. Set properly they wear as well as any other shape.
Does an oval look bigger than a round diamond?
Yes. It spreads the same carat weight over a longer surface, so it shows a larger face, and here the baguettes extend that width further across the finger.
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?
Yes. The band carries no stones, so a jeweler can cut and adjust it without touching the setting.
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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