Marquise Cut Lab Grown Diamond Bypass Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Marquise cut lab grown diamond engagement ring with 2.00 ct center, protective pointed-end prongs, leaf-like openwork shoulders and marquise and round diamond accents in yellow gold.

1 of 9

$558.00

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Independently graded by IGI IGI Report Included Selected 0.50 ct+ lab-grown center or primary diamond · IGI grading report · Signora Jewelry Certificate included. 1 ct lab-grown diamond · IGI report · Signora Certificate included.

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Forever, A & J

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Complimentary · hand-engraved to order · adds about 3–4 days.

For ChristmasOrder by Monday 30 November for delivery before 25 December. Holiday gift guide

Made in 7 days 30-day returnsDuties prepaid

Arrives 7 business days to make, then 5–8 insured & tracked.

30-day returns Courier, insurance & duties covered. No restocking fee.

Duties & taxesPrepaid at checkout. Nothing extra to pay on delivery.

Estimated dispatch: 7 business days Duties & taxes prepaid

Ring size guide

Lay a ring you own flat on the circle and slide until it sits just inside it — or set its inner diameter directly.

Measure the inside of a ring that already fits — inner edge to edge — with a ruler in mm, then set it below. No ring handy? Try Measure your finger.

14 mm 24 mm 17.3 mm

Inner diameter mm

US size

UK size

EU size

Circumference

54.3 mm

Between sizes? Always choose the larger size. Fingers are slightly bigger in the evening — measure then for the best fit.

Method 1 — Use an existing ring

Find a ring that fits the intended finger comfortably.
Place it flat and measure the inner diameter (inside edge to inside edge) in mm.
Enter that measurement in the Measure a ring tab.

Method 2 — Wrap and measure

Wrap a thin strip of paper around the base of your finger.
Mark where it overlaps — measure that length in mm (your circumference).
Divide by 3.1416 (π) to get your diameter, then use the Measure a ring tab.

Tip: Middle finger sizes typically run half a size larger than the ring finger. If between sizes, go up. Measure in the evening — fingers are slightly larger then.

7US size

US	UK	EU	Diameter	Circumference

Highlighted row = your converted size. Most common women's sizes are US 6–7. All measurements in mm.

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The Signora Promise

Hand-finished in SuratMade to order

Reports where statedExact scope shown

Insured deliverySigned & tracked

Secure checkoutShopify checkout

Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Marquise Cut ·

Center

Marquise Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Detail	In the photos	Customizable
Center diamond	Marquise Cut · 13.0 × 6.5 mm · approx. 2.00 ct	1–4.5 ct
Marquise accents	Approx. 4 Marquise Cut diamonds · 0.12 ct total	Reference accent weight
Round accents	Approx. 16–20 Round Brilliant diamonds · 0.06 ct total	Reference accent weight
Total diamond weight	Approx. 2.18 ct · 21–25 stones	Varies with center selection
Stone type	Lab Grown Diamond	F color · VS1 clarity
Setting	Protective pointed-end prongs with raised open gallery	Center size selectable
Shoulders	Sculpted Bypass-style leaf-and-vine openwork with mixed diamond accents	High Polish
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	11 metal choices

Diamond details

Shape	Size	Qty	Weight (approx.)
Marquise Cut · Center	13.0 × 6.5 mm	1	2.00 ct
Marquise Cut · Shoulders	Approx. 0.025–0.035 ct each	Approx. 4	0.12 ct
Round Brilliant · Shoulders	Approx. 0.002–0.004 ct each	Approx. 16–20	0.06 ct
Total	—	Approx. 21–25	2.18 ct

At a glance

A marquise cut lab grown diamond nature-inspired engagement ring from Signora Jewels.

A 13.0 × 6.5 mm marquise center weighing approx. 2.00 ct, held by protective pointed-end prongs. Approx. 4 marquise and 16–20 round brilliant accents total 0.18 ct, bringing the combined weight to 2.18 ct.

Made to order in 11 metals: silver, 10K/14K/18K gold (yellow, white, rose) and platinum.

Choose your center diamond weight and metal from the options on this page.

Follow the gold shoulders toward the center and you'll see two twisting paths shaped like leaves and vines. Signora Jewels sets a 13.0 × 6.5 mm marquise diamond between protective pointed-end prongs, with smaller marquise diamonds tucked into the open shoulder curves. Round brilliant accents trace the surrounding metal without filling every opening.

The reference center weighs 2.00 ct. Four smaller marquise cuts add approximately 0.12 ct, while 16–20 round diamonds contribute another 0.06 ct. The pointed accents echo the center's outline, and the negative spaces between the polished gold curves keep the design from becoming one solid diamond-set band.

Design highlights

Marquise Cut center diamond · approx. 2.00 ct and 13.0 × 6.5 mm
Protective pointed-end prongs with additional side claws
Approx. four marquise accent diamonds totaling 0.12 ct
Approx. 16–20 round brilliant accents totaling 0.06 ct
Open leaf-and-vine shoulders with polished curved metalwork
Customizable 1–4.5 ct center with 11 metal choices

The shoulder section widens to approximately 3.5–4.2 mm around the leaf-shaped openings before narrowing to a 2.20 mm polished lower shank. The raised center stands approximately 6.8–7.3 mm high. Explore more engagement rings and our diamond ring collection.

Diamond & Ring Details

Specification	Details
Center diamond	Marquise Cut · 13.0 × 6.5 mm · 2.00 ct
Marquise accents	Approx. 4 diamonds · 0.12 ct total
Round accents	Approx. 16–20 diamonds · 0.06 ct total
Total diamond weight	Approx. 2.18 ct at reference size
Center options	1, 1.5, 2, 2.5, 3, 3.5, 4 and 4.5 ct
Center setting	Prong basket with protective pointed-end support
Shoulders	Nature-inspired open leaf-and-vine curves
Gallery	Raised open gallery
Bottom band width	Approx. 2.20 mm
Shoulder width	Approx. 3.5–4.2 mm
Setting height	Approx. 6.8–7.3 mm
Finish	High Polish

Reference dimensions and accent counts are approximate. Final center dimensions, metal weight and total diamond weight depend on the selected center diamond.

About Lab Grown Diamonds

The marquise center has an elongated outline with two pointed ends, echoed by the smaller marquise diamonds along the shoulders. Round brilliant accents add a different pattern of reflections between the leaf-shaped metal sections. All diamonds are lab grown, with F color and VS1 clarity specifications. See our diamond and stone guide for more about cut and proportions.

Metal, Care & Fit

Choose silver, 10K, 14K or 18K yellow, white or rose gold, or platinum. Clean the open leaf-and-vine shoulders with warm water, mild soap and a soft brush, gently reaching between the curved metal sections and around the small diamonds. The center's protective prongs cover its pointed ends, but the raised basket still requires care around tight sleeves. Remove the ring before heavy lifting or hard impacts.

FAQ

Are the shoulder diamonds also marquise cut?
Four of the reference shoulder diamonds are marquise cuts totaling approximately 0.12 ct. Another 16–20 round brilliant diamonds, weighing approximately 0.06 ct, complete the leaf-and-vine design.

Are both pointed ends of the center protected?
Yes. Protective metal prongs cover both tips of the marquise center, while additional side claws hold its curved edges. The center remains open around the rest of its outline.

Does the ring have a surrounding halo?
No. The marquise center sits without a halo. All smaller diamonds are arranged along the sculpted, openwork shoulders.

Can I change the center diamond size?
Yes. The marquise center is selectable from 1 ct to 4.5 ct, including the reference 2.00 ct. The center basket is made to suit the chosen dimensions.

How do I clean the leaf-shaped openings?
Use mild soap, warm water and a soft brush, cleaning through the open shoulder curves and around the individually set marquise and round diamonds. Rinse thoroughly and dry with a lint-free cloth.

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