What center stone shape is used in this ring?

This ring features a princess cut lab-grown diamond.

How is the lab-grown diamond secured?

The princess cut lab-grown diamond is held securely by four prongs.

What profile features does this solitaire design have?

It features rising cathedral shoulders, an open gallery, and a high-polish round shank.

Which metal options are available for this ring?

You can choose from Yellow Gold, Rose Gold, White Gold, Silver, or Platinum.

Are there any accent stones on the band?

No, this is a solitaire ring design without accent stones.

What is a cathedral setting?

A cathedral setting features metal arches that extend upward from the shank to frame and elevate the center head.

What is an open gallery on a ring?

An open gallery leaves the space beneath and around the main setting open rather than solid metal, allowing light to reach the lab-grown diamond from the sides.

Princess Cathedral Lab-Grown Diamond Solitaire Ring

Diamond Shape —

Metal —

Carat —

Diamond Quality

Color —

Clarity —

Ring Size —

Not sure of your size? Choose Size later and we'll contact you after you order to confirm it.

$699Made to order · Ships by 10 working days

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.

Colourless · D E FNear colourless · G H I JFaint · K L M

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.

View full details

Certified diamonds Larger centre diamonds come certified, with a grading report.

Ships by —Made to order for you. Free shipping.

Lifetime care Free cleaning and check-ups for life, with easy returns and warranty support.

A single princess cut lab-grown diamond takes center stage in this solitaire design. Anchored by four prongs, the elevated setting relies on sweeping cathedral shoulders and an open gallery to reveal the stone's sharp geometric profile. A high-polish round shank offers smooth wear. Customize your piece in yellow gold, rose gold, white gold, silver, or platinum.

At a glance

Princess 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)

The sharp, square silhouette of the princess cut lab-grown diamond pairs with fluid cathedral arches to create a clean architectural look. Its smooth round shank and open gallery make it comfortable for daily wear while letting light reach the center stone from all sides.

Crafted to emphasize clean geometry, this solitaire ring places a princess cut lab-grown diamond inside a four-prong cathedral setting. The upward curve of the cathedral shoulders elevates the center stone, creating a distinct architectural profile along the finger. Beneath the central lab-grown diamond, an open gallery allows unobstructed light exposure from the sides, focusing attention entirely on the stone without relying on accent stones. The band features a smooth round shank with a reflective high-polish finish that ensures comfortable daily wear. Available in yellow gold, rose gold, white gold, silver, or platinum, this piece offers a tailored approach to a classic solitaire layout.