Round Cut Lab Grown Diamond Cathedral Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 9

$862.00

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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Metal:

Center Diamond:

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Ring size Choose one

Forever, A & J

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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

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

Round Brilliant · Pavé

Center

Round Brilliant

Carat

1 ct

Customizable

Metal

Customizable

Setting

Pavé

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	Round Brilliant Cut · 8.50 mm diameter · approx. 2.50 ct	1–4.5 ct
Accent diamonds	Round pavé diamonds · approx. 0.24 ct total	Scales with center
Total diamond weight	approx. 2.74 ct	Varies with selected center
Stone type	Lab Grown Diamond	—
Setting	Six-Prong Cathedral with pavé shoulders and open basket	—
Finish · Occasion	High Polish · Engagement, Anniversary	—

At a glance

A round lab grown diamond cathedral engagement ring from Signora Jewels.

A 2.50 ct, 8.50 mm round brilliant center sits in a Six-Prong setting above round pavé accents totaling approx. 0.24 ct. Approx. 2.74 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 lifts the 8.50 mm round brilliant above diamond-set cathedral shoulders, letting the band rise toward the basket instead of stopping abruptly beside the center. Pavé diamonds follow both upper shoulders, while the lower shank stays solid and polished.

The Six-Prong basket sits approximately 7.0–7.5 mm high. Its open construction exposes the side of the center, while the 2.50 mm lower band gives the ring noticeably more substance than a fine-wire solitaire.

Design highlights

2.50 ct round brilliant center in the reference design
Center measures approx. 8.50 mm diameter
Round pavé accents totaling approx. 0.24 ct
Six-Prong elevated open basket
Cathedral shoulders with subtle split detailing
Approx. 2.74 ct total diamond weight

The shoulders do two jobs at once: they carry the pavé upward toward the center and visually support the raised basket. From the front, the diamond rows narrow into the 8.50 mm round; from the side, the open gallery keeps the center clearly above the band.

Diamond & Ring Details

Specification	Details
Center stone	Round Brilliant Cut · 8.50 mm diameter · approx. 2.50 ct in the photos
Accent diamonds	Round pavé diamonds · approx. 0.24 ct total
Total diamond weight	approx. 2.74 ct in the photographed configuration
Setting	Six-Prong Cathedral with pavé shoulders and open basket
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 8.50 mm round brilliant uses a symmetrical circular facet pattern built for strong light return. The smaller rounds continue that sparkle along the shoulders without interrupting the center outline. Read more in the diamond stone guide.

Metal, Care & Fit

White gold and platinum make the pavé read as a brighter continuous line; yellow and rose gold put more contrast around the raised shoulders and basket. Compare choices in the metal guide. Clean beneath the open basket and along both pavé rows with warm water, mild soap and a soft brush.

FAQ

What do the cathedral shoulders do on this ring?
The shoulders rise toward the center basket instead of staying level with the lower shank. That gives the 8.50 mm round more visual support while carrying the pavé upward toward it.

How much diamond weight is set into the shoulders?
The round pavé accents total approximately 0.24 ct. The listing uses the confirmed total weight without relying on an estimated stone count.

How high does the center sit?
The setting rises approximately 7.0–7.5 mm. The open basket leaves visible space beneath the center and keeps the round diamond clear of the pavé shoulders.

Will a straight wedding band sit completely flush?
The raised cathedral structure can leave a small gap beside a straight band. A contoured band follows the profile beneath the center more closely.

How should the pavé shoulders be cleaned?
Use a soft brush along both diamond-set shoulders and underneath the open basket. Those recessed spaces collect more residue than the polished lower shank.

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