Radiant Cut Lab Grown Diamond Halo With Diamond Infinity Split Shank

IGI Report IncludedMade to OrderInsured Delivery

Diamond ring with gold band on a white background

1 of 13

$721.00

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 ct lab-grown diamond · IGI report · Signora Certificate included.

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Metal:

Center Diamond:

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Forever, A & J

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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.

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.

Each metal color is shown in the photos — pick your center size and metal in the options on this page.

Detail	In the photos	Customizable
Center diamond	Radiant · 3.03 ct	Yes — 1 to 4.5 ct
Metal & color	Every color shown	Yes — 11 options
Side Stones	72 diamonds · approx. 0.42 ct	Included as shown
Total diamond weight	approx. 3.45 ct	Varies with center size
Stone type	Lab Grown Diamond	Lab grown or natural

Made to order — the price updates with your selection. Want fully bespoke?
Customize your jewelry here.

This radiant lab grown diamond halo engagement ring is designed around a bold rectangular center stone framed by a bright halo of diamonds that amplifies its presence from every angle. Crafted to order, you can choose your preferred center size and metal to create a ring that feels uniquely yours.

The split shank design adds graceful movement along the finger, while rows of pavé-set diamonds flow into the halo for uninterrupted sparkle. Delicate marquise-inspired openwork details beneath the center give the profile a distinctive, handcrafted character.

With a substantial 3.03 ct radiant center shown in the photos and a total diamond weight of approximately 3.45 ct, this design balances impressive scale with refined proportions for an unforgettable proposal and a lifetime of wear.

Design highlights

Radiant-cut lab grown diamond center
Diamond halo surrounding the center stone
Split shank pavé band for added brilliance
72 accent diamonds integrated throughout the design
Elegant marquise-inspired open side details
Four-prong center setting
High-polish finish for maximum light reflection
Customizable center size from 1–4.5 ct with 11 metal options

The halo enhances the radiant cut's lively sparkle while the split shank creates a beautiful sense of openness and flow. From the top it appears bold and glamorous; from the side, the intricate detailing reveals the craftsmanship behind the design.

Diamond Details

Specification	Details
Center Stone Shape	Radiant Cut
Center Stone Size	9.00 × 7.00 mm
Center Stone Weight (as shown)	Approx. 3.03 CT
Accent Diamonds	72 round diamonds · approx. 0.42 CT
Total Diamond Weight	Approx. 3.45 CT
Total Diamond Count	73
Stone Type	Lab Grown Diamond
Setting	Four-Prong Halo with Split Shank Pavé Band

Measurements are approximate; your chosen size sets the final center weight.

Ring Specifications

Feature	Details
Ring Style	Halo Split Shank
Metal Options	Silver, 9K, 14K, 18K Gold, Platinum
Available Colors	Yellow Gold, White Gold, Rose Gold, Silver, Platinum
Setting Type	Halo & Split Shank Pavé
Finish	High Polish
Occasion	Engagement, Anniversary, Bridal

About Lab Grown Diamonds

A radiant marries an emerald's trimmed-corner outline with brilliant faceting, so it throws lively sparkle while keeping a bold rectangular footprint. The cropped corners are structurally tough and seat securely in prong or halo settings.

Every Signora Jewels diamond is grown in a controlled lab using the CVD process, producing a stone that is chemically, optically, and physically identical to a mined diamond — same hardness, same fire, graded on the same 4C scale. Because the supply chain is short and traceable, you get a larger, cleaner stone for the same budget and a documented origin, with no mining footprint. The result is a diamond that looks and tests exactly as a natural one, with more carat and clarity for your money.

FAQ

Can I change the center stone size?
Yes. Center sizes from 1 CT to 4.5 CT are available, and the setting is scaled to suit the stone you choose.

Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are chemically, physically, and optically identical to mined diamonds and are graded using the same standards.

Will people be able to tell it is lab grown?
No. Lab grown diamonds look identical to mined diamonds and cannot be distinguished by appearance alone.

What makes a halo setting popular?
The surrounding halo of diamonds increases visual presence and sparkle, making the center stone appear even larger and brighter.

Which metals can I choose?
Silver, 9K / 14K / 18K gold in yellow, white, or rose, and Platinum.

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