Princess Cut Lab Grown Diamond Three Stone Engagement Ring (2.28 ct)

IGI Report IncludedMade to OrderInsured Delivery

Diamond ring with a yellow gold band on a white background

1 of 13

$835.00

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 · Three Stone

Center

Princess Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Three Stone

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 · 2.28 ct	Yes — 1 to 4.5 ct
Metal & color	Every color shown	Yes — 11 options
Hidden halo & side stones	32 diamonds · approx. 0.97 ct	Included as shown
Total diamond weight	approx. 3.25 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 engagement ring balances bold geometry with graceful sparkle. A square princess-cut center rises above a hidden halo while marquise and round side diamonds create a flowing silhouette across the finger.

From the top, the design feels clean and architectural, with the crisp corners of the princess cut framed by a tapered arrangement of side stones. Look closer and the hidden halo adds a line of brilliance beneath the center stone, visible from the profile.

Made to order in your chosen metal and center size, this ring combines the presence of a three-stone design with the everyday wearability of a refined high-polish band.

Design highlights

Princess-cut lab grown diamond center stone
Four-prong basket setting
Hidden halo beneath the center diamond
Marquise and round diamond side stone arrangement
Elegant three-stone-inspired silhouette
Open gallery allows light to reach the center stone
High-polish finish for maximum brilliance
Customizable center size from 1 CT to 4.5 CT with 11 metal options

The contrast between the sharp lines of the princess cut and the soft curves of the marquise accents gives this ring a distinctive look from every angle. The hidden halo adds an extra layer of sparkle without changing the clean top view.

Diamond Details

Specification	Details
Center Stone Shape	Princess Cut
Center Stone Size	7.50 × 7.50 mm
Center Stone Weight (as shown)	Approx. 2.28 CT
Hidden Halo	16 round diamonds · approx. 0.08 CT
Side Stones	8 marquise diamonds · approx. 0.82 CT + 8 round diamonds · approx. 0.08 CT
Total Diamond Weight	Approx. 3.25 CT
Total Diamond Count	33
Stone Type	Lab Grown Diamond
Setting	Four-Prong Basket with Hidden Halo

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

Ring Specifications

Feature	Details
Ring Style	Hidden Halo Three Stone
Metal Options	Silver, 9K, 14K, 18K Gold, Platinum
Available Colors	Yellow, White, Rose Gold, Silver, Platinum
Setting Type	Four-Prong & Hidden 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. They are identical to mined diamonds in chemistry, hardness, and sparkle, and are graded on the same 4C scale — the only difference is origin.

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

What makes this design unique?
The ring combines a princess-cut center diamond with marquise and round side stones plus a hidden halo, creating sparkle from both the top and side views.

Is the hidden halo visible from above?
No. The hidden halo is designed to add brilliance from the side profile while maintaining a clean top-down appearance.

Your cart is empty