Cushion Cut Lab Grown Diamond Cathedral Halo Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 8

$940.00

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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.

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

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Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Cushion Cut · Halo

Center

Cushion Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

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	Cushion Cut · 5.80 × 5.80 mm · approx. 1.00 ct
Accent diamonds	50 round brilliant diamonds · approx. 0.37 ct total
Total diamond weight	approx. 1.37 ct · 51 stones
Stone type	Lab Grown Diamond
Setting	Four-Prong Halo with open basket and Cathedral micro pavé shank
Finish · Occasion	High Polish · Engagement

Diamond details

Shape	Size	Qty	Weight (approx.)
Cushion Cut	5.80 × 5.80 mm	1	1.00 ct
Round Brilliant	0.007–0.009 ct each	20	0.16 ct
Round Brilliant	0.006–0.008 ct each	30	0.21 ct
Total	—	51	1.37 ct

At a glance

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

A 5.80 × 5.80 mm cushion center weighing approx. 1.00 ct sits in a Four-Prong Halo, with 50 round accents totaling approx. 0.37 ct. Approx. 1.37 ct total.

Made to order in 11 metals: silver, 9K/14K/18K gold (yellow, white, rose) and platinum.

Choose your preferred metal from the options on this page.

Signora Jewels sets the 1.00 ct cushion inside a close halo that follows its softly squared outline. Four rounded prongs hold the 5.80 × 5.80 mm center at its corners, while the open basket leaves clear access beneath the diamond for cleaning.

Twenty round diamonds form the halo. Another thirty run along the cathedral shoulders, carrying the pavé line upward until it meets the center setting. The raised shoulders support the basket from both sides without closing the gallery with extra metal.

Design highlights

1.00 ct cushion cut center diamond
20-stone halo totaling approx. 0.16 ct
Cathedral shank with 30 micro pavé diamonds
Four-prong center setting
Open basket gallery beneath the center
Approx. 1.37 ct total across 51 diamonds

The halo keeps the cushion outline visible while adding a bright border around all four sides. Browse more halo engagement rings, compare diamond shapes in the diamond stone guide, or review precious metals in the metal guide.

About Lab Grown Diamonds

A cushion cut pairs rounded corners with a square face and broad reflections through the center. Here, the round halo follows those curved corners closely, adding width without changing the center diamond’s balanced proportions.

Metal, Care & Fit

White Gold and Platinum keep the halo visually connected to the center. Yellow or Rose Gold outlines the white diamonds more clearly. Clean between the halo stones, beneath the open basket and along both pavé shoulders with warm water, mild soap and a soft brush. A curved band gives the closest fit beneath the raised setting.

FAQ

How are the cushion diamond’s corners protected?
Four rounded prongs sit over the corners of the 5.80 × 5.80 mm center, securing the stone without covering its softly squared outline.

What does the halo add to this cushion design?
Twenty round diamonds add approx. 0.16 ct and create a bright border that makes the 1.00 ct center read wider from above.

Will a straight wedding band sit flush beside this ring?
The raised halo and cathedral shoulders create a contour near the center, so a curved wedding band gives the closest fit.

How should the cathedral pavé shank be cleaned?
Brush gently along both shoulders and beneath the open basket, where lotion and soap collect around the 30 band diamonds.

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