Round Cathedral Lab-Grown Diamond Solitaire Ring
Round Cathedral Lab-Grown Diamond Solitaire Ring
Round Cathedral Lab-Grown Diamond Solitaire Ring
Under 1 ct
1 to 2 ct
2 to 3 ct
3 to 5 ct
5 ct and above
Not sure which carat to choose?See how each size looks on a finger.
Not sure of your size? Choose Size later and we'll contact you after you order to confirm it.
Carat size on the finger
Drawn to scale on a size 6 finger (16.5 mm wide). Sizes are approximate face-up measurements.
Carat is weight, not size. A 2.00 ct stone looks about 25–30% wider than a 1.00 ct, not twice as wide. On a slimmer finger the same stone looks bigger.
Diamond colour & clarity
Colour runs from D, with no colour at all, towards a faint yellow. D–F look icy white. G–H look white once set, especially in yellow or rose gold.
Clarity is how many tiny natural marks a diamond has. From VS1 upwards they can't be seen without 10× magnification.
| Grade | What it means |
|---|---|
| FL · IF | Flawless — nothing seen at 10× |
| VVS1 · VVS2 | Very, very slight — very hard to find at 10× |
| VS1 · VS2 | Very slight — eye-clean, minor marks at 10× |
| SI1 · SI2 | Slight — usually eye-clean in smaller stones |
| I1 | Included — marks may be visible to the eye |
Ring size guide
Measure a ring that already fits, or wrap a strip of paper around your finger. If you're between sizes, go up one.
| US | UK | EU | Inside diameter | Circumference |
|---|---|---|---|---|
| 3.0 | F½ | 44 | 14.1 mm | 44.2 mm |
| 3.5 | G½ | 45 | 14.5 mm | 45.5 mm |
| 4.0 | H½ | 47 | 14.9 mm | 46.8 mm |
| 4.5 | I½ | 48 | 15.3 mm | 48.0 mm |
| 5.0 | J½ | 49 | 15.7 mm | 49.3 mm |
| 5.5 | K½ | 50 | 16.1 mm | 50.6 mm |
| 6.0 | L½ | 52 | 16.5 mm | 51.9 mm |
| 6.5 | M½ | 53 | 16.9 mm | 53.1 mm |
| 7.0 | N½ | 54 | 17.3 mm | 54.4 mm |
| 7.5 | O½ | 55 | 17.7 mm | 55.7 mm |
| 8.0 | P½ | 57 | 18.1 mm | 57.0 mm |
| 8.5 | Q½ | 58 | 18.5 mm | 58.2 mm |
| 9.0 | R½ | 59 | 18.9 mm | 59.5 mm |
| 9.5 | S½ | 60 | 19.4 mm | 60.8 mm |
| 10.0 | T½ | 62 | 19.8 mm | 62.1 mm |
| 10.5 | U½ | 63 | 20.2 mm | 63.3 mm |
| 11.0 | V½ | 64 | 20.6 mm | 64.6 mm |
| 11.5 | W½ | 65 | 21.0 mm | 65.9 mm |
| 12.0 | Y | 67 | 21.4 mm | 67.2 mm |
| 12.5 | Z | 68 | 21.8 mm | 68.5 mm |
| 13.0 | Z+1 | 69 | 22.2 mm | 69.7 mm |
- Wrap a strip of paper around the base of your finger, snug but not tight.
- Mark where it overlaps and measure the length in mm. That's your circumference.
- Find the nearest circumference above. Measure at the end of the day, when fingers are largest.
Still unsure? Choose Size later in the size list. We'll contact you after you order to confirm your size before we start making your ring.
Sweeping cathedral shoulders lift a round lab-grown diamond above the band in this clean solitaire design. Secured by four prongs, the main stone rests over an open gallery that captures light from all sides. A smoothly polished round shank provides complete comfort, making this piece a refined choice across your choice of yellow gold, rose gold, white gold, silver, or platinum.
At a glance
- Round lab-grown diamond centre stone
- Four-prong setting
- Cathedral setting
- Open Gallery gallery
- Cathedral shoulders
- High Polish Round shank
- Available in 5 metals (Yellow Gold, Rose Gold, White Gold +more)
Architectural arches draw immediate focus to the round lab-grown diamond, while the open gallery gives the profile a light, sculptural look. Wearers will appreciate the smooth round shank and clean design that pairs easily alongside other bands.
Built around a single round lab-grown diamond, this solitaire ring uses structural arches to highlight its center stone. Four sturdy prongs grip the round shape, while cathedral shoulders rise from the band to frame the head. This elevated architecture creates an open gallery below, allowing light to reach the lower facets of the lab-grown diamond without extra embellishments or accent stones. The band itself features a traditional round shank with a mirror-like high-polish finish. Resting smoothly against adjacent fingers, the unadorned profile emphasizes purity of line and balanced proportions. Available in platinum, silver, yellow gold, rose gold, or white gold, this piece balances secure craftsmanship with effortless daily wearability.
You may also like
Why this ring
Elevated Cathedral Arches
Rising shoulders frame the round lab-grown diamond, giving the center stone extra visual prominence on your hand.
Open Air Profile
The open gallery exposes the sides of the lab-grown diamond, allowing light to enter freely and illuminate the stone.
Secure Four-Prong Hold
Four precise prongs grip the center stone while leaving its rounded edges visible and clear.
Smooth High-Polish Finish
A rounded, mirror-finished shank sits comfortably against neighbouring fingers for continuous wear.
Details
- Stone Shape: Round lab-grown diamond
- Prong Setting: Four-prong
- Setting: Cathedral
- Gallery: Open Gallery gallery
- Shoulders: Cathedral shoulders
- Band / Shank: High Polish Round shank
- Metal Options: Yellow Gold, Rose Gold, White Gold, Silver, Platinum
FAQs
How does the cathedral setting affect the ring's profile?
The cathedral setting features sloping metal arches that raise the round lab-grown diamond higher off the finger, creating a prominent look.
Does this solitaire ring feature any accent stones?
No, this design is a pure solitaire featuring only one central round lab-grown diamond.
What are the benefits of an open gallery?
An open gallery leaves the space beneath the round lab-grown diamond unobstructed, making the stone easier to clean and letting light enter from the sides.
What metal options are available for this ring?
You can select this ring in yellow gold, rose gold, white gold, silver, or platinum.
How does the round shank feel during daily wear?
The round shank has a smooth outer contour with a high-polish finish, offering a gentle fit that sits easily against adjacent fingers.
