Luna Marquise Cut Lab Grown Diamond Vintage Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Fancy yellow Dutch marquise cut lab grown diamond engagement ring with protective pointed-end prongs, engraved floral shoulders and milgrain detailing in polished yellow gold.

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$421.00

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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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Forever, A & J

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Engraving 0 / 20

Complimentary · hand-engraved to order · adds about 3–4 days.

For ChristmasOrder by Monday 30 November for delivery before 25 December. Holiday gift guide

Made in 7 days 30-day returnsDuties prepaid

Arrives 7 business days to make, then 5–8 insured & tracked.

30-day returns Courier, insurance & duties covered. No restocking fee.

Duties & taxesPrepaid at checkout. Nothing extra to pay on delivery.

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 · Solitaire

Center

Marquise Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Solitaire

Specification	Details
Center diamond	Fancy Yellow Dutch Marquise Cut · 15.0 × 7.4 mm · 3.00 ct
Accent diamonds	None · 0.00 ct
Total diamond weight	3.00 ct · 1 diamond
Stone type	Lab Grown Diamond
Setting	Protective Six-Prong Marquise with raised open gallery
Shoulders	Vintage floral and scroll engraving with fine milgrain edges
Band width	Approx. 1.80 mm at bottom; 2.4–2.8 mm across decorated shoulders
Setting height	Approx. 7.3–7.8 mm
Finish	High Polish

At a glance

A fancy yellow marquise cut lab grown diamond engagement ring from Signora Jewels, featuring vintage engraved shoulders.

One 15.0 × 7.4 mm Dutch marquise diamond weighing 3.00 ct, with no additional diamonds.

Protective prongs at both pointed ends, side claw support and a raised decorative open gallery.

Available in 10K, 14K and 18K yellow, white or rose gold, silver and platinum. Center weight is fixed.

The yellow diamond rises above a band engraved with small flowers and curling stems. Signora Jewels sets this 15.0 × 7.4 mm Dutch marquise lengthwise, covering both narrow tips with protective prongs while four additional claws hold the sides. The stone's pointed outline stays fully visible from above, without a surrounding halo.

The shoulder engraving is worked directly into the metal, with a fine beaded border along its edges. There are no extra diamonds hidden among the flowers. At the reference size, the 3.00 ct center sits approximately 7.3–7.8 mm high, and the decorated shoulders taper into a polished 1.80 mm lower shank.

Design highlights

Fancy Yellow Dutch Marquise Cut center · 3.00 ct
Elongated 15.0 × 7.4 mm diamond dimensions
Protective pointed-end prongs with four side claws
Raised ornamental basket with open gallery
Engraved floral and scroll shoulders with milgrain borders
No halo, pavé or accent diamonds

The decorated shoulder section measures approximately 2.4–2.8 mm across. Its small floral shapes add detail without competing with the yellow center. Explore our engagement rings, browse diamond rings, or consult our diamond and stone guide.

Metal, Care & Fit

Choose 10K, 14K or 18K yellow, white or rose gold, silver or platinum. Clean the engraved flowers and milgrain borders with mild soap, warm water and a soft brush. The raised marquise setting needs care around fitted sleeves and gloves. Remove the ring before heavy lifting, and avoid direct knocks against the pointed ends.

FAQ

Is the yellow center a lab grown diamond? Yes. The Dutch marquise center is a 3.00 ct fancy yellow lab grown diamond measuring approximately 15.0 × 7.4 mm.

Are both pointed ends protected? Yes. Shaped prongs support both marquise tips, while four additional side claws hold the wider edges.

Are the flowers on the shoulders set with diamonds? No. The floral patterns and milgrain borders are decorative metalwork. The ring contains only its 3.00 ct center diamond.

How high does the center sit? The reference setting stands approximately 7.3–7.8 mm high, with an open gallery beneath the diamond.

How should I clean the engraved shoulders? Use warm water, mild soap and a soft brush, gently working between the small flower motifs and along the beaded edges. Rinse and dry thoroughly.

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