Luna Marquise Cut Lab Grown Diamond Cluster Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Marquise cut lab grown diamond engagement ring with a 2 ct center, protective tip prongs, six round diamond accents and leaf-and-vine yellow gold shoulders.

1 of 8

$599.00

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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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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 · Cluster

Center

Marquise Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Cluster

Detail	Reference Design	Customizable
Center diamond	Marquise Cut · 13.0 × 6.5 mm · approx. 2.00 ct	1–4.5 ct
Side diamonds	6 Round Brilliant · approx. 0.15 ct total	Reference accent weight
Total diamond weight	Approx. 2.15 ct · 7 diamonds	Varies with selected center
Stone type	Lab Grown Diamond	Center weight selectable
Setting	Protective prong-set marquise with raised open gallery	Basket adjusted to selected center
Shoulders	Three round diamonds on each side in sculpted leaf-and-vine openwork	High-polish metalwork
Band	Approx. 2.40 mm bottom width	10K, 14K and 18K gold; silver and platinum

Diamond details

Diamond Shape	Reference Size	Quantity	Total Weight
Marquise Cut Center	13.0 × 6.5 mm	1	2.00 ct
Round Brilliant Side	Approx. 0.025 ct per stone	6	0.15 ct
Total	Reference design	7	2.15 ct

At a glance

A marquise cut lab grown diamond cluster engagement ring with botanical shoulders from Signora Jewels.

A 13.0 × 6.5 mm marquise center weighing approximately 2.00 ct, supported by protective pointed-end prongs.

Six round brilliant side diamonds total 0.15 ct, bringing the reference diamond weight to 2.15 ct across seven stones.

Open leaf-and-vine shoulders, a raised gallery, and 10K, 14K or 18K gold, silver and platinum metal choices.

Signora Jewels sets the 13.0 × 6.5 mm marquise diamond upright between protective prongs at its pointed ends. On either side, three round brilliant diamonds nestle inside curved gold branches. The stones sit close to the center, but there is no halo enclosing its long outline.

The six accents weigh 0.15 ct together, with approximately 0.025 ct in each stone. Polished leaf tips curl outward from the diamond clusters, while the open spaces between the vines leave the shoulders light in appearance. At the bottom, the band measures approximately 2.40 mm, offering a broader foundation than the delicate openwork suggests.

Design highlights

Marquise Cut center, 13.0 × 6.5 mm and 2.00 ct at reference size
Protective pointed-end prongs and additional side claws
Six Round Brilliant diamonds, 0.15 ct combined
Symmetrical three-diamond clusters framed by sculpted leaves
Raised open gallery with curved vine-like shoulders
Customizable 1–4.5 ct center and 2.40 mm lower shank

The ornate upper section spans approximately 4.0–4.8 mm through the diamond clusters, while the center rises around 6.8–7.3 mm above the finger. Explore our engagement rings, browse diamond rings, or read our diamond stone guide.

Metal, Care & Fit

Choose 10K, 14K or 18K yellow, white or rose gold, silver or platinum. The raised marquise and sculpted leaf tips need care around fitted sleeves and gloves. Clean with warm water, mild soap and a soft brush, working gently beneath the center and between the round accent settings. Remove the ring during heavy lifting and check its prongs periodically.

FAQ

How are the six side diamonds arranged? Three round brilliant diamonds sit on each shoulder in a symmetrical cluster. Their combined reference weight is 0.15 ct.

Are the pointed ends of the marquise protected? Yes. Protective metal prongs support both tips of the marquise center, while additional claws secure its curved sides.

Is there a halo around the center diamond? No. The round diamonds are grouped beside the marquise, leaving the center outline clear without a surrounding halo.

Can I change the center diamond weight? Yes. The marquise center can be selected from 1 ct through 4.5 ct, including the reference 2.00 ct.

How should I care for the leaf-and-vine shoulders? Use a soft brush with mild soap and warm water to reach the spaces between the sculpted leaves and three-stone clusters. Avoid pulling fabric or hard objects against the projecting details.

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