Marquise Cut Lab Grown Diamond Cathedral Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 8

$691.00

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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. 1.0 ct lab-grown diamond · IGI report · Signora Certificate included.

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Engraving 0 / 20

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 · Pavé

Center

Marquise Cut

Metal

Customizable

Setting

Pavé

Specification	Reference Details
Center diamond	Marquise Cut · 10.0 × 5.0 mm · approx. 1.00 ct
Accent diamonds	Approx. 18–22 Round Brilliant · 0.10 ct total
Total diamond weight	Approx. 1.10 ct · 19–23 diamonds
Stone type	Lab Grown Diamond
Setting	Cathedral with protective marquise prongs and open gallery
Shoulders	Round diamond accents, geometric engraving and milgrain borders
Band width	Approx. 1.80 mm at bottom; 3.0–3.6 mm at shoulders
Setting height	Approx. 6.0–6.5 mm
Finish	High Polish
Center customization	1–4.5 ct selectable

At a glance

Marquise cut lab grown diamond cathedral engagement ring from Signora Jewels, with vintage geometric shoulders.

One 10.0 × 5.0 mm marquise center, approximately 1.00 ct, with protected pointed ends.

Approximately 18–22 round brilliant accents totaling 0.10 ct; reference combined diamond weight 1.10 ct.

Available in 10K, 14K and 18K yellow, white or rose gold, silver and platinum, with a customizable center diamond.

Look along the shoulders and the metal rises toward the marquise in two tapered cathedral arms. Signora Jewels sets a 10.0 × 5.0 mm center between protective prongs at both pointed ends, with additional claws along the sides. The raised open basket leaves the diamond's elongated outline visible without a surrounding halo.

Approximately 18–22 round brilliant diamonds decorate the shoulders, totaling 0.10 ct. They sit between finely worked geometric borders, while tiny milgrain beads trace the edges of the yellow gold. At the outer ends of the decorated section, diamond-set geometric motifs connect to the smooth polished band.

The 1.00 ct reference center brings the combined diamond weight to 1.10 ct. The shoulders measure approximately 3.0–3.6 mm wide before tapering to a 1.80 mm lower shank.

Design highlights

Marquise Cut center · 10.0 × 5.0 mm · 1.00 ct reference
Protective pointed-end prongs with additional side claws
Cathedral shoulders rising into an open center gallery
Approx. 18–22 round brilliant diamonds · 0.10 ct total
Vintage geometric patterns with fine milgrain edging
Selectable center diamond weights from 1–4.5 ct

The reference setting stands approximately 6.0–6.5 mm high. The engraved shoulders give the ring detail across the upper band while the polished lower section stays smooth. Explore our engagement rings, compare diamond ring designs, or read the diamond and stone guide.

Metal, Care & Fit

Choose 10K, 14K or 18K gold in yellow, white or rose, or select silver or platinum. Clean the round diamond settings and milgrain borders gently with warm water, mild soap and a soft brush. Avoid pressure on the marquise tips and remove the ring before heavy work. The raised cathedral basket may leave a gap beside a straight wedding band.

FAQ

Are both marquise points protected? Yes. Protective metal prongs cover the upper and lower pointed ends, with additional claws supporting the sides.

Where are the accent diamonds? Approximately 18–22 round brilliant diamonds sit along the decorative cathedral shoulders, totaling 0.10 ct.

Does the ring have a halo? No. The center diamond has no surrounding diamond halo. The smaller stones are positioned on the shoulders.

Can I choose a larger center diamond? Yes. The marquise center is selectable from 1 ct to 4.5 ct, including the 1.00 ct reference.

How should I clean the vintage detailing? Use a soft brush and mild soap to clean between the small diamond settings and beaded metal borders, then rinse and dry thoroughly.

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