Petal Crown Marquise Ring

IGI Report IncludedMade to OrderInsured Delivery

Front view of a yellow gold marquise cut diamond engagement ring with alternating marquise and round brilliant side stones.

1 of 14

$1,065.00

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

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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.

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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

Marquise Cut ·

Center

Marquise Cut

Metal

Customizable

Setting

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
Ring style	Three Stone
Center diamond	Marquise · 10.00 × 5.00 mm · approx. 0.82 ct
Side stones	16 diamonds · approx. 0.90 ct
Total diamond weight	approx. 1.71 ct (17 stones)
Stone type	Lab Grown Diamond
Setting	Prong Set Three Stone
Finish	High Polish
Occasion	Engagement

Made to order — select your options above. Want something fully custom?

Customize your jewelry here.

This marquise lab grown diamond three stone engagement ring combines elegant proportions with exceptional sparkle. A striking marquise center diamond is framed by marquise side stones and round accent diamonds, creating a beautifully balanced design from every angle.

The elongated silhouette naturally flatters the finger while the graduated side stones add dimension and brilliance. Delicate accent diamonds complete the design without distracting from the center stone.

Crafted to order and finished in a high polish, this ring blends timeless elegance with modern craftsmanship for a look that feels effortlessly luxurious.

Design highlights

Marquise lab grown diamond center stone
Marquise side stone arrangement
Round accent diamonds for added brilliance
17 total diamonds
Approx. 1.71 ct total diamond weight
Elegant three-stone silhouette
High-polish finish
Available in 11 precious metal options

Spotlight: The marquise center stone creates a graceful elongated profile, while the marquise side stones echo its shape for a harmonious and sophisticated design.

About Lab Grown Diamonds

A marquise stretches weight across a long, pointed boat shape, so it presents one of the largest face-up sizes per carat. Its tapering ends draw the eye down the finger and make a confident, regal statement.

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

What makes a marquise diamond unique?
Its elongated shape creates excellent finger coverage and a distinctive elegant appearance while maximizing visual size.

What does a three-stone ring symbolize?
Traditionally, the three stones represent the past, present, and future of your relationship.

Can this ring be customized?
Choose your options on this page; for anything beyond that we make custom pieces — Customize your jewelry here.

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

What metals and colors can I choose?
Silver, 9K, 14K and 18K Gold in yellow, white, and rose, plus Platinum.

Is this ring suitable for everyday wear?
Yes. Lab grown diamonds are exceptionally durable and suitable for daily wear.

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