Radiant Cut Lab Grown Diamond Hidden Halo Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$858.00

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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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Center Diamond:

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Forever, A & J

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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.

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

Radiant Cut · Halo

Center

Radiant 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	In the photos	Customizable
Center diamond	Radiant Cut · 8.45 × 6.30 mm · approx. 2.00 ct	1–4.5 ct
Marquise side stones	Approx. 0.38 ct total	Scales with center
Hidden halo	Round diamonds · approx. 0.12 ct total	Scales with center
Shoulder accents	Round pavé diamonds · approx. 0.06 ct total	Scales with center
Total accent weight	approx. 0.56 ct	Varies with center size
Total diamond weight	approx. 2.56 ct	Varies with selected center
Stone type	Lab Grown Diamond	—
Setting	Four-Prong Hidden Halo with marquise side stones and open gallery	—
Finish · Occasion	High Polish · Engagement, Anniversary	—

Diamond details

Shape	Role	Weight (approx.)
Radiant Cut	Center · 8.45 × 6.30 mm	2.00 ct
Marquise Cut	Flanking side stones	0.38 ct total
Round Cut	Hidden Halo	0.12 ct total
Round Cut	Shoulder pavé	0.06 ct total
Total accents	Side stones + Hidden Halo + pavé	0.56 ct
Total	Center + accents	2.56 ct

At a glance

A radiant lab grown diamond hidden halo engagement ring from Signora Jewels.

A 2.00 ct, 8.45 × 6.30 mm radiant center sits above marquise side stones and round accents totaling approx. 0.56 ct. Approx. 2.56 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 sets the 8.45 × 6.30 mm radiant between marquise side diamonds, with smaller rounds carrying the line into the shoulders. Beneath the center, hidden diamond rows sit below the face-up edge, so the rectangular outline stays clean from above while extra light appears from an angle.

The Four-Prong basket rises approximately 7.0–7.5 mm and stays open beneath the center. At the base, the shank measures about 1.80 mm wide and 1.80 mm thick, while the upper shoulder work broadens around the marquise stones.

Design highlights

2.00 ct radiant center in the reference design
Center measures approx. 8.45 × 6.30 mm
Marquise side diamonds totaling approx. 0.38 ct
Hidden Halo diamonds totaling approx. 0.12 ct
Round pavé shoulder accents totaling approx. 0.06 ct
Four-Prong elevated center with open gallery

The marquise stones widen the ring beside the radiant without closing around it like a face-up halo. From the side, the hidden diamond work appears beneath the basket; from above, the center keeps its clipped rectangular outline.

Diamond & Ring Details

Specification	Details
Center stone	Radiant Cut · 8.45 × 6.30 mm · approx. 2.00 ct in the photos
Marquise side stones	approx. 0.38 ct total
Hidden Halo	Round diamonds · approx. 0.12 ct total
Shoulder pavé	Round diamonds · approx. 0.06 ct total
Total accent weight	approx. 0.56 ct
Total diamond weight	approx. 2.56 ct in the photographed configuration
Setting	Four-Prong Hidden Halo with marquise side stones and open gallery
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 radiant center combines a clipped rectangular outline with a brilliant-style facet pattern, while the marquise and round accents add different flashes around it. Read more about cut and proportions in the diamond stone guide.

Metal, Care & Fit

White gold and platinum keep the hidden diamond work visually close to the center; yellow and rose gold create stronger contrast around the marquise side stones and open basket. Compare choices in the metal guide. Clean beneath the gallery and around the side settings with warm water, mild soap and a soft brush. Browse more engagement rings.

FAQ

Where is the Hidden Halo on this radiant ring?
The hidden diamond work sits beneath the face-up edge of the radiant center and totals approximately 0.12 ct. It appears from the side rather than forming a border around the center from above.

How much diamond weight is in the side setting?
The complete accent setting totals approximately 0.56 ct. That includes approx. 0.38 ct of marquise side stones, 0.12 ct beneath the center and 0.06 ct through the shoulders.

How is the radiant center held?
The 8.45 × 6.30 mm reference center sits in a Four-Prong setting. The open gallery leaves the pavilion visible from the side and keeps the rectangular face clear of the shoulder stones.

How high does the center sit?
The reference setting rises approximately 7.0–7.5 mm. That height leaves room beneath the center for the hidden diamond treatment and open gallery.

How should the Hidden Halo and side settings be cleaned?
Use a soft brush underneath the basket, around the marquise side stones and through the pavé shoulders. These recessed areas collect more residue than the plain lower shank.

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