Princess Cut Halo Lab Grown Diamond Vintage Infinity

IGI Report IncludedMade to OrderInsured Delivery

Gold and diamond ring on a white background

1 of 13

$857.00

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.

Understand your certificates →Certificate details →

Metal:

Center Diamond:

Choose your fit

Ring size Choose one

Forever, A & J

Live preview

Engraving 0 / 20

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

Princess Cut · Halo

Center

Princess 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	Princess · 2.03 ct	Yes — 1 to 4.5 ct
Metal & color	Every color shown	Yes — 11 options
Side stones	50 diamonds · approx. 0.44 ct	Included as shown
Total diamond weight	approx. 2.47 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 princess lab grown diamond halo engagement ring brings together crisp geometry and intricate detail. At its center sits a square princess-cut diamond framed by a shimmering halo that amplifies its size and sparkle from every angle.

The shoulders feature an elegant infinity-inspired design, accented with additional diamonds and fine milgrain detailing that create texture and light along the finger. The result is a ring that feels both romantic and distinctive without overwhelming the center stone.

Made to order in your choice of center size and precious metal, this design gives you the freedom to create a ring that feels personal while preserving the proportions that make the original design so striking.

Design highlights

Princess cut lab grown diamond center
Diamond halo surrounding the center stone
Infinity-inspired diamond-accented shoulders
Fine milgrain detailing throughout the side profile
Four-prong setting securing the center diamond
Open gallery allows light to reach the center stone
Available with center sizes from 1–4.5 ct
Available in 11 metal and color options

From the top, the halo adds a bold frame around the princess center. From the side, the flowing infinity details reveal layers of craftsmanship that make this ring memorable long after the proposal.

Diamond Details

Specification	Details
Center Stone Shape	Princess Cut
Center Stone Size	6.96 × 6.96 mm
Center Stone Weight (as shown)	Approx. 2.03 CT
Accent Diamonds	50 round diamonds · approx. 0.44 CT
Total Diamond Weight	Approx. 2.47 CT
Total Diamond Count	51
Stone Type	Lab Grown Diamond
Setting	Four-Prong Halo Setting

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

Ring Specifications

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

About Lab Grown Diamonds

A princess is a square brilliant with crisp corners and sharp, high-contrast sparkle. It offers a contemporary edge and strong value per carat, and looks especially clean in channel or pavé bands that frame its straight lines.

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 on the same 4C scale.

What style is this ring?
This design combines a princess-cut halo with diamond-accented infinity shoulders and milgrain detailing for additional sparkle and character.

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

Your cart is empty