Marquise Cut Lab Grown Diamond Cluster Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$1,041.00

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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.

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

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Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Marquise Cut · Cluster

Center

Marquise Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Cluster

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 · 11.5 × 6.3 mm · approx. 2.00 ct	1–4.5 ct
Accent diamonds	14 mixed-shape diamonds · approx. 0.40 ct total	Scales with center
Total diamond weight	approx. 2.40 ct · 15 stones	Varies with center size
Stone type	Lab Grown Diamond	—
Setting	Six-Prong	Scales with center
Band	Open vine shoulders with mixed-shape leaf clusters	—
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Marquise center	11.5 × 6.3 mm	1	2.00 ct
Pear accents	—	4	0.24 ct total
Marquise accents	—	4	0.11 ct total
Round accents	—	6	0.05 ct total
Total	—	15	2.40 ct

At a glance

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

The photographed design centers a 2.00 ct marquise measuring approximately 11.5 × 6.3 mm in a six-prong setting, with 14 pear, marquise and round accents totaling approximately 0.40 ct. Approx. 2.40 ct total.

Made to order in 11 metals: silver, 9K/14K/18K gold (yellow, white, rose) and platinum.

Each metal color is shown in the photos. Choose your center weight and metal from the options on this page.

Signora Jewels sets the 11.5 × 6.3 mm marquise at the center of a branching arrangement rather than a straight side-stone row. Pear and marquise accents sit like leaves along the shoulders, while six small rounds fill the open spaces between the polished vines.

The photographed 2.00 ct center is held by six prongs, including dedicated protection at both pointed ends. The shoulders spread to approximately 4.50 mm near the clusters, then narrow to a 2.20 mm lower shank. Open spaces between the branches keep the side work light enough to see every individual stone.

Design highlights

2.00 ct reference marquise measuring approximately 11.5 × 6.3 mm
Four pear side diamonds totaling approximately 0.24 ct
Four marquise leaf diamonds totaling approximately 0.11 ct
Six round accents totaling approximately 0.05 ct
Six-prong center setting with protection at both marquise tips
Open vine shoulders measuring approximately 4.50 mm near the center

The mixed cuts follow the shape of the metalwork. Pears create broader leaf forms, smaller marquise cuts continue the pointed pattern, and rounds punctuate the vine where a larger stone would close the open spaces. Browse more engagement rings, compare cuts in the diamond stone guide, or review all metal choices in the metal guide.

Diamond & Ring Details

Specification	Details
Center stone	Marquise · 11.5 × 6.3 mm · approx. 2.00 ct in the photographed design
Pear accents	4 diamonds · approx. 0.24 ct total
Marquise accents	4 diamonds · approx. 0.11 ct total
Round accents	6 diamonds · approx. 0.05 ct total
Total weight / count	approx. 2.40 ct · 15 stones in the photographed design
Setting	Six-Prong
Band	Nature-inspired open vine with mixed-shape clusters
Band details	Approx. 2.20 mm lower width · 1.85 mm lower thickness · 4.50 mm shoulder width
Setting height	Approx. 7.80 mm at the 2.00 ct reference weight
Center options	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct
Finish	High Polish

Measurements are approximate. The selected center weight determines the final diamond dimensions, setting proportions and total diamond weight.

About Lab Grown Diamonds

The marquise center stretches the reference 2.00 ct weight across an approximately 11.5 × 6.3 mm outline. Pear and marquise accents repeat its tapered geometry along the shoulders, while the smaller rounds introduce compact flashes between the leaf forms.

Metal, Care & Fit

The reference construction uses approximately 6.05 g of 18K gold before the diamonds are set. Yellow and rose gold make the open vines easier to distinguish between the stones; white gold and platinum keep the clusters closer in tone to the diamonds. Clean from both sides with warm water, mild soap and a soft brush so residue does not collect behind the small accent settings.

FAQ

What do the mixed-shape side diamonds do in this design?
Four pear, four marquise and six round diamonds create the leaf clusters along the open vine shoulders. Together they add approximately 0.40 ct around the photographed 2.00 ct center.

How are the pointed ends of the marquise protected?
The six-prong setting includes contact points at both ends of the marquise. Those end prongs cover the most vulnerable tips of the approximately 11.5 × 6.3 mm reference center.

How wide are the vine shoulders?
The shoulders reach approximately 4.50 mm near the diamond clusters before tapering into a 2.20 mm lower shank. Because the vines are open rather than solid, you can see negative space between the branches.

How high does the 2 ct reference center sit?
The photographed setting is approximately 7.80 mm high. That height clears the mixed-shape clusters while keeping the center visually connected to the branching shoulders.

How should I clean between the leaf clusters?
Use a soft brush with warm water and mild soap from both the top and underside. The open vine construction gives access behind the pear, marquise and round accents where lotion can collect.

Common questions

Ring questions, answered

Timing, shipping, certification and return eligibility for made-to-order rings.

Still deciding? Talk to a Signora jeweler — free, and no obligation. Book a consultation →

Answers last updated August 2, 2026

When will my order ship?

Standard listed pieces are made to order with an estimated dispatch of 7 business days. Use the product-page estimate when it is more specific and the timing confirmed after ordering. Delivery timing begins after dispatch and varies by destination and carrier service. Fully custom commissions follow the production schedule confirmed with their approved specifications or CAD.

When is insured worldwide delivery free?

Orders of US$500 or more receive free express, insured and tracked worldwide delivery. Below US$500, express, insured and tracked worldwide delivery is charged at the fixed rate shown at checkout.

Will I have to pay import duties?

For every destination available at checkout, Signora prepays applicable import duties and import taxes. Customers should not be asked to pay those import charges again on delivery.

What certificate comes with my jewelry?

Every finished piece includes a Signora Jewelry Certificate. Each selected individual lab-grown center or primary diamond of 0.50 ct or above includes an IGI grading report. Below 0.50 ct, IGI can be arranged by custom request. Custom moissanite and gemstone selections include GRA documentation, with the exact scope confirmed in the approved specifications. The product page or approved specifications state the exact laboratory, report type and scope.

Can I return a made-to-order listed design?

Standard listed products are eligible for return within 30 days after carrier-recorded delivery when unworn, unused and in their original condition, with the original packaging and included documents. Normal listed choices such as metal, stone carat, chain or bracelet length, an extended ring size, or complimentary engraving do not by themselves make an item Final Sale. A sale or discount also does not imply Final Sale; only an item explicitly classified as Final Sale follows the non-returnable exclusion.

How are fully custom orders handled?

A fully custom commission is different from a listed made-to-order design. After its specifications or CAD are approved, a normal change-of-mind return does not apply. Manufacturing defects remain reviewable. Signora may accept an exceptional non-defect return case by case; documented labor and genuinely non-recoverable costs may be deducted, but these deductions are not a restocking fee.

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