Marquise Cut Lab Grown Diamond Vine Six-Prong Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Marquise lab grown diamond Six-Prong engagement ring with vine shoulders and hidden blue gemstone in yellow gold

1 of 9

$746.00

Price updates with your selections

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 · 13.24 × 6.67 mm · approx. 2.00 ct	1–4.5 ct
Accent diamonds	10 round diamonds · approx. 0.07 ct total	Scales with center
Hidden gemstone	1 round blue gemstone · approx. 0.02 ct	Set beneath center
Total diamond weight	approx. 2.07 ct · 11 diamonds	Varies with center size
Stone type	Lab Grown Diamond with hidden blue gemstone accent	—
Setting	Six-Prong with elevated open gallery	—
Finish · Occasion	High Polish · Engagement, Anniversary	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Marquise Cut	13.24 × 6.67 mm	1	2.00 ct
Round Cut Diamond	Not specified	10	0.07 ct total
Round Blue Gemstone	Not specified	1	0.02 ct
Total diamond weight	—	11 diamonds	2.07 ct
Total stone weight	—	12 stones	2.09 ct

At a glance

A marquise lab grown diamond Six-Prong engagement ring from Signora Jewels.

The 2.00 ct reference center measures approx. 13.24 × 6.67 mm, with 10 round diamond accents totaling approx. 0.07 ct and one hidden blue gemstone of approx. 0.02 ct.

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 13.24 × 6.67 mm marquise above curling engagement ring shoulders rather than a straight pavé band. Ten small round diamonds sit between sculpted leaves and scrolls, while a blue gemstone is tucked underneath the center where it stays out of the main face-up view.

The Six-Prong setting secures both pointed ends and the sides of the marquise. Its gallery rises approximately 7.0–7.5 mm, leaving open space beneath the center and separating the long diamond from the 4.5–5.5 mm shoulder work.

Design highlights

2.00 ct marquise center in the reference configuration
Center measures approx. 13.24 × 6.67 mm
10 round diamond accents totaling approx. 0.07 ct
One hidden round blue gemstone, approx. 0.02 ct
Six-Prong center with elevated open gallery
Sculpted leaf-and-vine shoulders with open metalwork

The blue stone is a private detail rather than part of the front-facing cluster. From above, the eye sees the long marquise and scattered round accents; from underneath, the hidden stone adds a small point of color beneath the basket.

Diamond & Ring Details

Specification	Details
Center stone	Marquise Cut · 13.24 × 6.67 mm · approx. 2.00 ct in the photos
Round accents	10 lab grown diamonds · approx. 0.07 ct total
Hidden accent	1 round blue gemstone · approx. 0.02 ct
Total diamond weight	approx. 2.07 ct in the photographed configuration
Setting	Six-Prong with elevated open gallery and sculpted vine shoulders
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 13.24 mm from tip to tip, giving the center a pronounced length across the finger. Its ten smaller round diamonds break up the shoulder metalwork with compact flashes. See the diamond stone guide for more on marquise proportions and cut.

Metal, Care & Fit

Yellow and rose gold make the carved leaves and hidden blue accent easier to distinguish, while white gold and platinum keep the Six-Prong setting visually closer to the diamonds. Compare choices in the metal guide. Use warm water, mild soap and a soft brush beneath the open gallery and around the recessed shoulder stones.

FAQ

Where is the blue gemstone in this ring?
The single blue gemstone sits beneath the marquise center rather than on the main face of the ring. It weighs approximately 0.02 ct and acts as a hidden color detail inside the setting.

How are the pointed ends of the marquise protected?
The center is secured in a Six-Prong setting with support at both pointed ends. The remaining prongs meet the sides of the 13.24 × 6.67 mm reference center.

How much diamond weight sits in the shoulders?
The ten round shoulder diamonds total approximately 0.07 ct. They sit individually through the vine-and-leaf metalwork rather than forming a continuous pavé row.

How high does the center sit?
The setting rises approximately 7.0–7.5 mm. That height leaves an open gallery beneath the marquise and creates space for the hidden blue gemstone.

How should the hidden stone and open gallery be cleaned?
A soft brush can reach underneath the raised center and around the hidden gemstone. Use warm water and mild soap, then rinse thoroughly so residue does not remain inside the sculpted shoulder recesses.

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