Radiant Cut Lab Grown Diamond Hidden Halo Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 9

$702.00

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. 1.0 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

Radiant Cut · Halo

Center

Radiant Cut

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	Radiant Cut · approx. 6.7 × 4.9 mm · 1.00 ct
Hidden halo	12 Round Brilliant · approx. 0.04 ct total
Shoulder diamonds	18 Round Brilliant · approx. 0.20 ct total
Total diamond weight	Approx. 1.24 ct · 31 diamonds
Stone type	Lab Grown Diamond
Setting	Hidden Halo with raised four-corner prong basket
Band	Round brilliant pavé shoulders
Gallery	Open gallery beneath the center
Finish · Occasion	High Polish · Engagement, Bridal

Diamond details

Shape	Size	Qty	Weight (approx.)
Radiant Cut center	6.7 × 4.9 mm	1	1.00 ct
Round Brilliant hidden halo	Individual dimensions not specified	12	0.04 ct total
Round Brilliant shoulders	Individual dimensions not specified	18	0.20 ct total
Total	Reference configuration	31	1.24 ct

At a glance

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

The 1.00 ct radiant center measures approximately 6.7 × 4.9 mm, with 12 hidden halo diamonds weighing 0.04 ct and 18 shoulder diamonds weighing 0.20 ct. Approximately 1.24 ct total.

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

Made to order with a fixed 1.00 ct center. Choose your metal and color from the options on this page.

At Signora Jewels, we set this 6.7 × 4.9 mm radiant diamond above a ring of 12 smaller round diamonds tucked beneath its edge. From directly overhead, the center keeps its rectangular outline. Turn the ring sideways and the hidden halo comes into view.

Eighteen round brilliant diamonds run along the shoulders, adding approximately 0.20 ct. The center is held by paired claw tips at four corner positions, while the plain lower band measures approximately 1.70 mm across.

Design highlights

Fixed 1.00 ct radiant-cut center, approximately 6.7 × 4.9 mm
12 round brilliant hidden halo diamonds, approximately 0.04 ct total
18 round brilliant pavé shoulder diamonds, approximately 0.20 ct total
Four-corner center basket with paired claw tips
Raised gallery keeping the hidden halo beneath the center
Approximately 1.70 mm lower band width with a high-polish finish

The hidden halo sits below the diamond's girdle rather than wrapping around its face. That leaves the radiant's clipped corners visible from above, with the smaller stones positioned to catch light from the side.

About Lab Grown Diamonds

The radiant center combines a rectangular outline with brilliant-style facets. The 30 round brilliant accents have smaller, circular outlines: 12 beneath the center and 18 along the shoulders.

Metal, Care & Fit

Choose silver, yellow gold, white gold, rose gold or platinum. Compare the metal options before selecting your finish. The reference setting stands approximately 6.0–6.5 mm high above the shank.

For cleaning and care, use warm water, mild soap and a soft brush. Clean gently beneath the raised basket, around the hidden halo and between the pavé shoulder diamonds. Rinse thoroughly and dry with a lint-free cloth.

FAQ

Where are the 12 hidden halo diamonds positioned?
The 12 round brilliant diamonds sit beneath the radiant center's girdle, rather than surrounding its face. They weigh approximately 0.04 ct together and are designed to be seen mainly from the side.

How many diamonds are in the shoulders?
There are 18 round brilliant diamonds along the shoulders, weighing approximately 0.20 ct in total. Together with the 12 hidden halo diamonds and one radiant center, the ring contains 31 diamonds.

How is the radiant center secured?
The 1.00 ct radiant center is secured at four corner positions, with paired claw tips visible in the reference image. Its approximately 6.7 × 4.9 mm rectangular face remains unobstructed between those corner positions.

Will this hidden halo engagement ring sit flush with a wedding band?
The raised center basket measures approximately 6.0–6.5 mm high in the reference specifications. A flush fit depends on the finished gallery clearance and the profile of the accompanying wedding band.

How should I clean the hidden halo and pavé shoulders?
Use warm water, mild soap and a soft brush around the 12 halo diamonds and 18 shoulder diamonds. Brush gently beneath the center basket without forcing the bristles against the small prongs, then rinse and dry thoroughly.

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