Princess Cut Lab Grown Diamond Cathedral Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Princess cut lab grown diamond engagement ring with four corner claws, filigree cathedral shoulders, milgrain edging and round diamond accents in yellow gold.

1 of 8

$511.00

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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 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

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

Princess Cut · Cathedral

Center

Princess Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Cathedral

Detail	In the photos	Customizable
Center diamond	Princess Cut · 7.7 × 7.7 mm · approx. 2.50 ct	1–4.5 ct
Accent diamonds	Approx. 10–14 Round Brilliant · 0.05 ct total	Reference accent weight
Total diamond weight	Approx. 2.55 ct · 11–15 diamonds	Varies with center selection
Stone type	Lab Grown Diamond	F color · VS1 clarity
Setting	Four-Prong Cathedral basket with raised open gallery	Center size selectable
Shoulders	Filigree openwork, decorative scrolls and milgrain borders with round accents	High Polish
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	10K/14K/18K gold, silver and platinum

At a glance

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

A 7.7 × 7.7 mm princess center weighing approx. 2.50 ct, secured by four corner claws, with approximately 10–14 round shoulder diamonds totaling 0.05 ct. Approx. 2.55 ct combined.

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

Choose your center diamond weight and metal from the options on this page.

There's a lot going on beside this princess diamond, but none of it crowds the square center. Signora Jewels sets a 7.7 × 7.7 mm princess cut in four corner claws, with cathedral shoulders rising toward the basket. Between those supports, the gold is worked into small scrolls and leaf-shaped openings, each bounded by fine beaded milgrain.

The reference center weighs 2.50 ct. Approximately 10–14 round brilliant accents add 0.05 ct along the upper shoulders, spaced between the open metal patterns rather than set in a continuous pavé row. The lower shank narrows to 1.80 mm, leaving the elaborate work concentrated on the upper half.

Design highlights

Princess Cut center diamond · approx. 2.50 ct and 7.7 × 7.7 mm
Four corner claw prongs securing the square center
Cathedral shoulders lifting into a raised open basket
Approx. 10–14 Round Brilliant accent diamonds · 0.05 ct total
Decorative filigree and fine milgrain edging
Customizable center from 1–4.5 ct with 10K, 14K and 18K gold choices

The upper shoulders measure approximately 3.8–4.5 mm across their filigree section, while the head rises 7.0–7.5 mm. Curved openings keep the decorated gold from reading as one solid block beside the diamond. Explore our engagement rings and more diamond ring designs.

Diamond & Ring Details

Specification	Details
Center diamond	Princess Cut · 7.7 × 7.7 mm · approx. 2.50 ct
Accent diamonds	Approx. 10–14 Round Brilliant · 0.05 ct total
Total diamond weight	Approx. 2.55 ct at reference size
Center options	1, 1.5, 2, 2.5, 3, 3.5, 4 and 4.5 ct
Setting	Four-Prong Cathedral
Shoulders	Filigree with open scrolls and milgrain edging
Gallery	Raised open gallery
Bottom band width	Approx. 1.80 mm
Shoulder width	Approx. 3.8–4.5 mm
Setting height	Approx. 7.0–7.5 mm
Finish	High Polish

Reference measurements and accent counts are approximate. Center dimensions and finished metal weight depend on the selected diamond size.

About Lab Grown Diamonds

The princess cut has a square outline and brilliant-style facets that return smaller flashes of light across the stone's face. The four corner claws secure its pointed edges, while round brilliant accents add sparkle between the ornate shoulder designs. All diamonds are lab grown, selected to F color and VS1 clarity specifications. Learn more from our diamond and stone guide.

Metal, Care & Fit

Choose silver, 10K, 14K or 18K gold in yellow, white or rose, or platinum. The milgrain borders and open filigree have small spaces that collect residue, so clean gently with warm water, mild soap and a soft brush. Work around the tiny accent settings and beneath the raised basket. Remove the ring before heavy lifting or activities that press against the corner claws.

FAQ

Are the accent diamonds set all along the band? No. Approximately 10–14 round diamonds sit within the ornate upper shoulders, totaling 0.05 ct. The lower shank is plain polished metal.

How are the princess center's corners protected? Four corner claws secure the square diamond at its pointed corners. The raised basket supports the center above the filigree shoulders.

Does this ring have a halo? No. The princess center is held without a surrounding diamond halo. All smaller diamonds are placed in the shoulder details.

Can I choose a larger princess diamond? Yes. The center diamond is available from 1 ct through 4.5 ct, including the reference 2.50 ct. The basket is made for the selected dimensions.

How should I clean the milgrain and filigree? Use mild soap, warm water and a soft brush, gently reaching through the open scrolls and along the beaded borders. Rinse and dry with a lint-free cloth.

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