Marquise Cut Lab Grown Diamond Split Shank Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$739.00

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

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.

Selected: —

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

An independent IGI grading report is included when the selected individual lab-grown center or primary diamond is 0.50 ct or larger.

Detail	In the photos	Customizable
Center diamond	Marquise Cut · 13.93 × 7.00 mm · approx. 2.50 ct	1–4.5 ct
Accent diamonds	4 marquise diamonds · approx. 0.11 ct total	Scales with center
Total diamond weight	approx. 2.61 ct · 5 diamonds	Varies with center size
Stone type	Lab Grown Diamond	—
Setting	Six-Prong center with Split Shank and open gallery	—
Finish · Occasion	High Polish · Engagement, Anniversary	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Marquise Cut center	13.93 × 7.00 mm	1	2.50 ct
Marquise Cut accents	—	4	0.11 ct total
Total	—	5	2.61 ct

At a glance

A marquise lab grown diamond split shank engagement ring from Signora Jewels.

A 2.50 ct, 13.93 × 7.00 mm marquise center sits in a Six-Prong setting, with 4 marquise side diamonds totaling approx. 0.11 ct. Approx. 2.61 ct total.

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

Choose your center weight and metal for this made-to-order ring.

Signora Jewels sets the 13.93 × 7.00 mm marquise above an open engagement ring gallery, with six prongs holding the pointed center clear of the shoulders. Four smaller marquise diamonds sit inside curling split-vine metalwork, repeating the center shape like leaves rather than forming a straight diamond row.

The lower shank measures about 2.10 mm wide and 1.50 mm thick. Near the center, the split shoulders open to roughly 5.5–6.5 mm, while the basket rises approximately 7.0–7.5 mm.

Design highlights

2.50 ct marquise center in the reference design
Center measures approx. 13.93 × 7.00 mm
4 marquise side diamonds totaling approx. 0.11 ct
Six-Prong center setting
Open gallery with sculpted Split Shank shoulders
Center customizable from 1 ct to 4.5 ct

All four side stones repeat the marquise outline, so the leaf pattern comes from diamond shape as well as metalwork. The openings between the vines keep the 2.50 ct center visually separate from the shoulders.

Diamond & Ring Details

Specification	Details
Center stone	Marquise Cut · 13.93 × 7.00 mm · approx. 2.50 ct in the photos
Marquise accents	4 diamonds · approx. 0.11 ct total
Total diamond weight	approx. 2.61 ct in the photographed configuration
Diamond count	5
Setting	Six-Prong center with Split Shank and open gallery
Center options	1, 1.5, 2, 2.5, 3, 3.5, 4 and 4.5 ct
Finish	High Polish

Measurements are approximate; your selected center weight sets the final diamond dimensions and total weight.

About Lab Grown Diamonds

The reference marquise runs 13.93 mm from tip to tip, giving it a pronounced length across the finger. Read more about elongated cuts and proportions in the diamond stone guide.

Metal, Care & Fit

Yellow and rose gold make the split vines easier to distinguish; white gold and platinum keep the prongs visually closer to the diamonds. Compare choices in the metal guide. Clean beneath the open gallery and around each marquise accent with warm water, mild soap and a soft brush.

FAQ

How are the pointed ends of the center marquise protected?
The center is held in a Six-Prong setting with support at both pointed ends. The remaining prongs secure the sides of the 13.93 × 7.00 mm reference diamond.

What do the four marquise side diamonds do in this design?
The four side diamonds total approximately 0.11 ct and follow the curling shoulder lines like leaves. Repeating the center shape keeps the shoulder pattern consistent from the main stone outward.

How high does the center sit?
The setting rises approximately 7.0–7.5 mm. That leaves open space beneath the marquise and separates it clearly from the split-vine shoulders.

Will a straight wedding band sit completely flush?
The sculpted split shoulders and raised basket can leave a small space beside a straight band. A contoured band follows the side profile more closely.

How should the open vine shoulders be cleaned?
Use a soft brush through the spaces between the metal curves and around all four marquise accents. Those recessed areas collect more residue than the plain lower shank.

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