Marquise Cut Lab Grown Diamond Double Halo Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$728.00

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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. 0.51 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.

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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 · Double Halo

Center

Marquise Cut

Metal

Customizable

Setting

Double Halo

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

Detail	Details
Center diamond	Marquise Cut · 8.42 × 3.68 × 2.69 mm · approx. 0.51 ct
Halo diamonds	Approx. 52–58 Round Brilliant · 0.52 ct total
Shoulder diamonds	Approx. 22–24 Round Brilliant · 0.19 ct total
Total diamond weight	Approx. 1.22 ct · 75–83 diamonds
Stone type	Lab Grown Diamond
Diamond quality	F Color · VS1 Clarity
Setting	Double Halo with two pavé borders, protective V-shaped end prongs and pavé shoulders
Band	Polished shank · approx. 2.05 mm wide and 1.70 mm thick at base
Setting height	Approx. 6.0–6.5 mm
Finish · Occasion	High Polish · Engagement

Diamond details

Shape	Size	Qty	Weight (approx.)
Marquise center	8.42 × 3.68 × 2.69 mm	1	0.51 ct
Round Brilliant halo diamonds	Individual diameters not supplied	52–58	0.52 ct
Round Brilliant shoulder diamonds	Individual diameters not supplied	22–24	0.19 ct
Total	—	75–83	1.22 ct

At a glance

A marquise lab grown diamond double halo engagement ring from Signora Jewels.

One 0.51 ct marquise, 8.42 × 3.68 × 2.69 mm, with protective V-shaped tip prongs. Approximately 74–82 round accent diamonds total 0.71 ct. Approx. 1.22 ct overall.

Made to order in 10K, 14K and 18K gold, available in yellow, white and rose gold.

Made to order in your selected gold color and purity, with a fixed 0.51 ct marquise center diamond.

Signora Jewels sets an 8.42 × 3.68 mm marquise inside two elongated rows of pavé diamonds. V-shaped metal guards cover both pointed ends, while rounded side prongs hold the center along its curved edges.

Approximately 52–58 small round diamonds trace the two halos. Another 22–24 diamonds continue along the shoulders, bringing the total accent weight to 0.71 ct. The lower shank measures approximately 2.05 mm wide.

Design highlights

0.51 ct marquise-cut center measuring 8.42 × 3.68 × 2.69 mm
Two concentric pavé halos following the elongated marquise outline
Approximately 52–58 halo diamonds totaling 0.52 ct
Approximately 22–24 shoulder diamonds totaling 0.19 ct
Protective V-shaped metal prongs at both pointed ends
Approximately 1.22 ct total diamond weight across 75–83 stones

The inner halo follows the marquise closely, while the second extends its pointed outline. Small round diamonds continue into the shoulders, leaving two distinct rows around the center rather than one solid diamond border.

About Lab Grown Diamonds

The marquise center has an elongated shape with pointed ends, while the surrounding round brilliant accents reflect light in smaller flashes. Compare these facet patterns in our diamond stone guide.

Metal, Care & Fit

Choose 10K, 14K or 18K yellow, white or rose gold. The double halo sits above the diamond-set shoulders, so a companion band needs clearance beside the raised setting. Explore our halo engagement rings and follow the jewelry care guide when cleaning the small pavé settings.

FAQ

Why does this marquise ring have two diamond halos?
Two concentric rows of small round diamonds follow the marquise outline, contributing approximately 0.52 ct. The inner row sits close to the center while the outer row extends the pointed silhouette.

How are the marquise diamond's pointed ends protected?
V-shaped metal guards cover both pointed ends of the 0.51 ct center. Additional rounded side prongs secure the curved edges, leaving portions of the diamond visible between the metal contacts.

How much diamond weight comes from the halos and shoulders?
The two halos contribute approximately 0.52 ct and the shoulders add approximately 0.19 ct. Together, the accents total 0.71 ct, bringing the complete ring to approximately 1.22 ct.

Can a straight wedding band sit flush against this double halo?
The setting height is estimated at 6.0–6.5 mm, and the diamond-set shoulders measure approximately 2.1–2.3 mm wide. These measurements do not establish a flush fit, so check a companion band against the finished setting.

How should I clean between the two pavé halos?
Use warm water, mild soap and a soft brush around both halo rows, their pointed ends and the shoulder diamonds. Rinse thoroughly and pat dry without pulling fabric through the small prongs.

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