Infinity Round Lab Grown Diamond Hidden Halo Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$956.00

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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.

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

Round Brilliant · Halo

Center

Round Brilliant

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	Reference Design	Customizable
Center Diamond	Round Brilliant Lab Grown Diamond · 6.40–6.50 mm · Approx. 1.00 ct (Reference)	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct
Accent Diamonds	Hidden Halo & Twisted Shank · Approx. 0.23 ct Total	Scaled proportionally with the selected center diamond
Total Diamond Weight	Approx. 1.23 ct (Reference)	Varies with selected center diamond
Stone Type	Lab Grown Diamond	—
Setting	Four-Prong Cathedral Basket with Hidden Halo & Twisted Infinity Pavé Shank	—
Finish	High Polish	—
Occasion	Engagement · Anniversary · Bridal	—

At a glance

An infinity round lab grown diamond hidden halo engagement ring from Signora Jewels.

The reference design features an approximately 1.00 ct round brilliant lab grown diamond elevated above a hidden halo with approximately 0.23 ct of accent diamonds across the hidden halo and twisted infinity pavé shank. The cathedral profile creates exceptional brilliance from every angle.

Made to order in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum.

Select your preferred center diamond size and precious metal using the options on this page.

The four-prong cathedral basket securely supports the round brilliant center while a hidden halo beneath the diamond introduces an additional layer of sparkle that becomes visible from the side profile. The elevated gallery allows generous light to enter beneath the center stone for outstanding brilliance.

The twisted infinity shank flows gracefully toward the center, symbolizing an everlasting bond while adding continuous sparkle along the shoulders. Fine pavé-set lab grown diamonds accentuate the sculptural twist without overpowering the center diamond. Every ring is handcrafted to order by Signora Jewels.

Design Highlights

Customizable round lab grown diamond from 1 ct to 4.5 ct
Hidden halo beneath the center diamond
Twisted infinity pavé shank
Four-prong cathedral basket
Open gallery construction
High polish finish

Browse our Hidden Halo Engagement Rings, explore the Engagement Ring Guide, or compare precious metals using our Metal Guide.

Diamond Details

Specification	Details
Reference Center Diamond	Round Brilliant Lab Grown Diamond · 6.40–6.50 mm · Approx. 1.00 ct
Hidden Halo Diamonds	Approx. 18 Round Brilliant · Approx. 0.08 ct Total
Twisted Shank Diamonds	Approx. 26 Round Brilliant · Approx. 0.15 ct Total
Total Stones	Approx. 45
Reference Total Diamond Weight	Approx. 1.23 ct
Available Center Sizes	1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct and 4.5 ct

The measurements shown represent the photographed reference model. Final proportions vary according to the selected center diamond.

About Lab Grown Diamonds

The round brilliant cut is celebrated for its exceptional brilliance. Combined with a hidden halo and an infinity-inspired pavé shank, the design delivers sparkle from every viewing angle while maintaining a timeless engagement ring silhouette.

Metal, Care & Fit

Available in Silver, 9K, 14K and 18K Yellow, White and Rose Gold, plus Platinum. Clean beneath the hidden halo and along the pavé-set shank with warm water, mild soap and a soft brush to maintain maximum brilliance.

FAQ

What is a hidden halo?
A hidden halo is a circle of small diamonds placed beneath the center stone, adding sparkle that is most visible from the side profile.

Can I customize the center diamond?
Yes. This design is available with center diamond sizes from 1 ct through 4.5 ct.

Does the twisted infinity shank affect comfort?
No. The twisted design is smoothly finished to provide a comfortable fit while adding elegant detail.

Will this ring pair with a wedding band?
Yes. The cathedral profile pairs well with many straight or gently contoured wedding bands depending on your preferred fit.

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