Princess Cut Lab Grown Diamond Cathedral Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 9

$953.00

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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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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.

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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

Princess Cut · Pavé

Center

Princess Cut

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	Details
Center diamond	Princess Cut · 5.45 × 5.45 mm · approx. 1.00 ct
Pear side diamonds	approx. 0.38 ct total
Round pavé accents	approx. 0.18 ct total
Total diamond weight	approx. 1.56 ct
Stone type	Lab Grown Diamond
Setting	Four-Prong Cathedral with pear side stones and pavé shoulders
Finish · Occasion	High Polish · Engagement

Diamond details

Shape	Role	Weight (approx.)
Princess Cut	Center · 5.45 × 5.45 mm	1.00 ct
Pear Cut	Flanking side stones	0.38 ct total
Round Cut	Pavé shoulder accents	0.18 ct total
Total accents	Pear + round diamonds	0.56 ct
Total	Center + accents	1.56 ct

At a glance

A princess cut lab grown diamond cathedral engagement ring from Signora Jewels.

A 1.00 ct, 5.45 × 5.45 mm princess center is framed by pear side diamonds and round pavé accents totaling approx. 0.56 ct. Approx. 1.56 ct total.

Made to order in 11 metals: silver, 10K/14K/18K gold (yellow, white, rose) and platinum.

Choose your metal in the options on this page.

Signora Jewels sets the square 5.45 mm princess center between pear-shaped side diamonds, then carries smaller rounds along the rising cathedral shoulders. The pears soften the transition from the sharp princess corners into the band, while the pavé continues the light farther down each side.

The Four-Prong basket sits approximately 6.0–6.5 mm high above an open geometric gallery. At the base, the shank measures about 1.80 mm wide and 1.80 mm thick, giving the lower band enough substance beneath the diamond-set upper shoulders.

Design highlights

1.00 ct princess center, approx. 5.45 × 5.45 mm
Pear side diamonds totaling approx. 0.38 ct
Round pavé shoulder accents totaling approx. 0.18 ct
Four-Prong Cathedral center setting
Open geometric gallery beneath the princess diamond
Approx. 1.56 ct total diamond weight

The pear side stones create a clear step between the square center and the pavé band. Their pointed ends face outward into the shoulders, so the transition gets narrower as it approaches the shank rather than ending abruptly beside the princess.

About Lab Grown Diamonds

The princess cut uses a square outline with pointed corners and a brilliant-style facet pattern, while the pear and round accents introduce softer outlines beside it. Read more about shape and proportion in the diamond stone guide.

Metal, Care & Fit

White gold and platinum keep the prongs and pavé visually close to the diamonds; yellow and rose gold create stronger contrast around the pear side stones and cathedral shoulders. Compare choices in the metal guide. Clean beneath the open gallery and around the side settings with warm water, mild soap and a soft brush.

FAQ

How are the princess cut corners protected in this setting?
The 5.45 × 5.45 mm center is held by four prongs positioned at its corners. Those prongs secure the most exposed points while leaving most of the square face visible.

What do the pear side diamonds add to this ring?
The pear side diamonds total approximately 0.38 ct and sit directly beside the princess center. Their tapered outlines soften the transition from the square center into the narrower shoulders.

How much diamond weight is in the pavé shoulders?
The round pavé accents total approximately 0.18 ct. Together with the pear side stones, the complete accent setting weighs approximately 0.56 ct.

How high does the center sit?
The setting rises approximately 6.0–6.5 mm. The open geometric gallery lifts the princess above the cathedral shoulders and leaves access beneath it for cleaning.

Will this design work beside a wedding band?
The raised cathedral shoulders can leave a slight gap beside a straight band. A gently contoured band follows the center setting more closely.

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