Round Lab Grown Diamond Crescent & Star Bypass Ring

Signora Jewelry Certificate IncludedMade to OrderInsured Delivery

round diamond crescent and star bypass ring in yellow gold

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$459.00

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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

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Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Round Brilliant ·

Center

Round Brilliant

Metal

Customizable

Setting

Detail	Details
Ring style	Open bypass ring with crescent moon and star motifs
Star diamond	Round · 2.80 mm · Approx. 0.090 ct
Crescent diamonds	16 round diamonds · 0.80–1.70 mm · Approx. 0.170 ct total
Total diamond weight	Approx. 0.260 ct · 17 diamonds
Stone type	Lab Grown Diamond
Setting	Prong-set graduated crescent with a raised star-set diamond
Top span	Approx. 20.86 mm
Reference size	US 8
Finish	High Polish
Occasion	Daily wear, Birthday, Gift

Diamond details

Shape	Size	Qty	Weight (Approx.)
Round star diamond	2.80 mm	1	0.090 ct
Round crescent diamonds	1.70 mm	2	0.040 ct
Round crescent diamonds	1.60 mm	2	0.036 ct
Round crescent diamonds	1.50 mm	2	0.030 ct
Round crescent diamonds	1.40 mm	2	0.024 ct
Round crescent diamonds	1.20 mm	2	0.016 ct
Round crescent diamonds	1.00 mm	2	0.010 ct
Round crescent diamonds	0.90 mm	2	0.008 ct
Round crescent diamonds	0.80 mm	2	0.006 ct
Total	—	17	0.260 ct

At a glance

A round Lab Grown Diamond crescent and star bypass ring from Signora Jewels.

One 2.80 mm round diamond sits inside the star, while 16 graduated rounds trace the crescent for approx. 0.260 ct total.

The open motif top spans approx. 20.86 mm and rises from a slim polished shank.

Made to order in 11 metals: silver, 9K/14K/18K gold in yellow, white or rose, and platinum.

Made to order — select your metal above.

Signora Jewels builds the crescent as a narrow diamond line that grows from 0.80 to 1.70 mm, then stops short of the star instead of closing into a full circle. The open space between the two motifs is what keeps the top from feeling heavy.

The 2.80 mm round sits above the pointed star frame in a raised prong setting. Across from it, sixteen smaller rounds follow the curve of the moon in graduated steps, so the sparkle strengthens toward the middle and softens at each tip.

The shank stays plain below the motifs and meets the top at two separate points. That bypass construction leaves the finger visible through the center and gives the approx. 20.86 mm span a lighter profile.

Design highlights

Round Lab Grown Diamond celestial ring
Crescent moon and star motif
One 2.80 mm star-set diamond, Approx. 0.090 ct
Sixteen graduated crescent diamonds, Approx. 0.170 ct total
Diamond sizes ranging from Approx. 0.80 to 1.70 mm
Open bypass construction
Approx. 20.86 mm motif span
Approx. 0.260 ct total diamond weight

The open bypass is the working detail. It separates the moon from the star, creates movement across the finger and keeps the polished band visible between the two diamond-set forms. Explore more bypass rings.

About Lab Grown Diamonds

Round brilliant diamonds return light through a compact facet pattern. Here, the larger 2.80 mm stone acts as the bright focal point, while the smaller graduated rounds build a softer line through the crescent.

Lab grown diamonds have the same carbon crystal structure, hardness and optical properties as mined diamonds. They are graded using the same cut, color, clarity and carat standards.

Metal, Care & Fit

Choose silver, 9K/14K/18K gold in yellow, white or rose, or platinum. 9K contains more strengthening alloy, while 18K contains more gold and carries richer color; compare the options in the metal guide.

Order in your known US size. The motif extends across the finger, so accurate sizing keeps the crescent and star upright; use the ring size and fit guide. Clean beneath the star and along the crescent with warm water, mild soap and a soft brush.

FAQ

How many diamonds are in the ring?
The ring contains 17 round Lab Grown Diamond stones. One sits in the star, and 16 run along the crescent.

What is the total diamond weight?
The total diamond weight is approximately 0.260 ct. The star diamond weighs approx. 0.090 ct, while the crescent diamonds total approx. 0.170 ct.

How is the star diamond set?
The 2.80 mm round diamond is held in a raised prong setting at the center of the pointed star frame. The setting leaves the upper edge exposed to light.

How are the crescent diamonds arranged?
The crescent contains 16 graduated round diamonds measuring approximately 0.80 to 1.70 mm. The sizes increase toward the middle of the curve and reduce toward the tips.

What is the difference between a bypass ring and a standard band?
A bypass ring brings the two ends of the shank past one another instead of joining them in one continuous top. This design uses that opening to separate the crescent from the star.

Can this ring be worn every day?
Yes. The plain lower shank sits smoothly against the finger, though the pointed star and raised diamond should be kept away from hard impacts.

What is the difference between 9K and 18K gold?
9K gold contains more strengthening alloy and has a harder surface, while 18K contains more gold and carries richer color. Both are solid gold choices for this ring.

What is included with the finished ring?
Signora Jewels includes the 2.80 mm star diamond, all 16 crescent diamonds and the selected made-to-order metal in the completed ring.

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