Aster Marquise Lab Grown Diamond Three-Stone Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

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$706.00

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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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Center Diamond:

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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

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.

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

Marquise Cut · Three Stone

Center

Marquise 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.

Detail	In the photos	Customizable
Center diamond	Marquise Cut · 14.50 × 7.25 mm · approx. 2.50 ct	1–4.5 ct
Side diamonds	2 pear cut diamonds · approx. 0.33 ct total	Three-Stone layout
Total diamond weight	approx. 2.83 ct · 3 diamonds	Varies with selected center
Stone type	Lab Grown Diamond	—
Setting	Six-Prong Three-Stone with pear side diamonds and open gallery	—
Finish · Occasion	High Polish · Engagement, Anniversary	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Marquise Cut	14.50 × 7.25 mm	1	2.50 ct
Pear Cut	Not specified	2	0.33 ct total
Total	—	3	2.83 ct

At a glance

A marquise lab grown diamond three-stone engagement ring from Signora Jewels.

A 2.50 ct, 14.50 × 7.25 mm marquise center is flanked by 2 pear diamonds totaling approx. 0.33 ct. Approx. 2.83 ct total.

Made to order in 11 metals: silver, 10K/14K/18K gold (yellow, white, rose) and platinum.

Choose your center weight and metal for this made-to-order ring.

Signora Jewels sets the 14.50 × 7.25 mm marquise between two pear side diamonds, with the pointed ends of all three stones drawing toward one another. The pear sides widen the top without adding pavé, while the tapered shoulders carry the design into a slim polished shank. See more three-stone rings.

The center rises approximately 7.0–7.5 mm above an open gallery. At the base, the shank measures about 1.80 mm wide and 1.50 mm thick, keeping the lower band restrained beneath the 2.83 ct reference diamond layout.

Design highlights

2.50 ct marquise center in the reference design
Center measures approx. 14.50 × 7.25 mm
2 pear cut side diamonds totaling approx. 0.33 ct
Six-Prong Three-Stone center arrangement
Elevated open gallery with tapered shoulders
Approx. 2.83 ct total diamond weight

The pear side stones are broadest beside the center and narrow toward the band. That taper keeps the 14.50 mm marquise dominant while giving the three-stone top enough width to read clearly across the finger.

Diamond & Ring Details

Specification	Details
Center stone	Marquise Cut · 14.50 × 7.25 mm · approx. 2.50 ct in the photos
Side stones	2 pear cut diamonds · approx. 0.33 ct total
Total diamond weight	approx. 2.83 ct in the photographed configuration
Diamond count	3
Setting	Six-Prong Three-Stone with pear side diamonds and open gallery
Center options	1, 1.5, 2, 2.5, 3, 3.5, 4 and 4.5 ct
Finish	High Polish

Measurements are approximate; your selected center weight sets the final diamond dimensions and total weight.

About Lab Grown Diamonds

The reference marquise measures 14.50 mm from tip to tip, while the pear side stones repeat its pointed geometry at a smaller scale. Read more about elongated cuts in the diamond stone guide.

Metal, Care & Fit

White gold and platinum keep the three settings visually close to the diamonds, while yellow and rose gold create stronger contrast around the pear sides. Compare choices in the metal guide. Clean beneath the open gallery and around all three settings with warm water, mild soap and a soft brush.

FAQ

What makes this a true three-stone design?
The ring uses one marquise center with one pear diamond on each side. There are no pavé diamonds competing with the three principal stones.

How much diamond weight is in the two pear side stones?
The two pear diamonds total approximately 0.33 ct. Combined with the 2.50 ct reference center, the photographed configuration totals approximately 2.83 ct.

How are the pointed ends of the marquise protected?
The center uses a Six-Prong setting with support at both pointed ends and along the sides. The 14.50 × 7.25 mm reference outline remains visible from above.

How high does the center sit?
The reference setting rises approximately 7.0–7.5 mm. That leaves an open gallery beneath the marquise and separates it from the tapered shoulders.

Will a straight wedding band sit completely flush?
The elevated three-stone gallery can leave a small gap beside a straight band. A contoured band follows the pear-and-marquise profile more closely.

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