3 CT emerald cut hidden halo ring in rose gold

3 CT emerald cut hidden halo pavé lab-grown diamond engagement ring, white metal

3 CT emerald cut hidden halo ring, front view

3 CT emerald cut hidden halo ring, side view

3 CT emerald cut hidden halo ring, top view

3 CT emerald cut hidden halo ring in yellow gold

3 CT Emerald Cut Hidden Halo Pavé Lab-Grown Diamond Engagement Ring (3.00 CT Center, ≈3.40 CT TW) – Flash Sale

Q: What is a UK size L in US sizing?

A UK L and a half is a US 6, the most common women's size, with an inside diameter of 16.5 mm. A plain UK L sits just below that, between a US 5.5 and a US 6.

Q: What does a European ring size number mean?

Under ISO 8653 the European size is the inside circumference of the band in millimeters. A European 52 is a ring measuring 52 mm around the inside, which corresponds to a US 6.

Flash Sale – Ends Sunday

3.00 CT IGI-certified emerald center (F–G, VS1–VS2), ≈3.40 CT total. Sterling silver $799 · 10K $999 · 14K $1,299 · 18K $1,599.

Ends Sunday, Oct 4 at 11:59 PM ET

Ends Sunday, Oct 4 at 11:59 PM ET. Limited quantity at this price — while supply lasts.

30-day returns, same as every Diamond Domain ring. Other options are at regular price. Not combinable with other offers. Terms & conditions apply.

Item is in stockOnly 0 left in stockItem is out of stock Item is unavailable

Diamond Quality - F-G / VS1-VS2

$1,599.00 ~~$2,649.00~~

Product Details

Flash sale through Sunday, October 4 (11:59 PM ET). Our emerald-cut hidden halo ring with a full 3.00 CT IGI-certified lab-grown center stone, now from $799 in sterling silver.

Center stone: 3.00 CT emerald-cut lab-grown diamond, F–G color, VS1–VS2 clarity, IGI-certified.

Total carat weight: approximately 3.40 CT (3.00 CT center plus approximately 0.40 CT of pavé and hidden-halo side stones).

Setting: A hidden halo of pavé diamonds under the center stone and a pavé band, for sparkle from every angle.

Metal: 925 sterling silver, or 10K, 14K or 18K white, yellow or rose gold.

Made to order in our 48th Street workshop. Free shipping, 30-day returns and a lifetime warranty.

Flash sale prices apply to this listing only and cannot be combined with any discount code or other offer.

Feeling Unsure About Your Purchase?

Book a Free Jewelry Consultation Call with Our Experts and Get Personalized Guidance to Help You Choose the Perfect Piece!

Stone Type

All our jewelry features lab-grown diamond stones, offering the same brilliance and beauty as natural diamonds with a commitment to sustainability and ethical sourcing.

IGI-Certified Diamonds

Our lab-grown diamonds of 1 carat and larger come with an independent IGI grading report, so you know exactly what you are getting. Every piece, whatever its size, is made to order and checked by our jewelers in our workshop on 48th Street before it ships.

Free Shipping in the USA

Enjoy complimentary shipping on all orders within the United States, ensuring your jewelry arrives safely and promptly. For more information, visit our Free Shipping page.

Need help with sizing?

Contact our support team via chat, email at info@diamonddomain.com, or call us at 888-709-7077

Ring sizing systems differ by country, but they all describe the same physical thing: the inside circumference of the band in millimeters. Convert by finding your millimeter measurement, not by converting number to number — that is where mistakes creep in.

We size in US measurements. If you have a size from another system, use the chart below to find its US equivalent before ordering.

Conversion chart

Ring size conversion across the four main systems
US / Canada	UK / Australia	Europe (ISO)	Japan / China	Diameter (mm)	Circumference (mm)
3	F	44	4	14.1	44.2
3.5	G	45½	5	14.5	45.5
4	H	47	7	14.9	46.8
4.5	I	48	8	15.3	48.0
5	J½	49½	9	15.7	49.3
5.5	K½	50½	10	16.1	50.6
6	L½	52	11	16.5	51.9
6.5	M½	53	13	16.9	53.1
7	N½	54½	14	17.3	54.4
7.5	O½	55½	15	17.7	55.7
8	P½	57	16	18.1	57.0
8.5	Q½	58	17	18.5	58.3
9	R½	59½	18	19.0	59.5
9.5	S½	61	19	19.4	60.8
10	T½	62	20	19.8	62.1
10.5	U½	63½	22	20.2	63.4
11	V½	64½	23	20.6	64.6
11.5	W½	66	24	21.0	65.9
12	X½	67	25	21.4	67.2
12.5	Y½	68½	26	21.8	68.5
13	Z½	70	27	22.2	69.7

How each system works

US and Canada use a numeric scale in half-size steps. Each full size is roughly 0.4 mm of diameter, or about 1.3 mm of circumference.
UK, Ireland, Australia and New Zealand use letters, with half sizes marked by a ½. The alphabet runs from A upward, so a UK L½ is a US 6.
Europe (ISO 8653) is the most literal: the number is the inside circumference in millimeters, rounded. A European 52 is a band 52 mm around.
Japan and China use their own numeric scale, which does not map evenly onto the others. Treat these as the closest match rather than an exact equivalent, and confirm against the millimeter columns.

Convert by millimeters, not by number

Systems round differently, and rounding twice compounds the error. If you know your size in one system, read across to the millimeter columns first, then find the nearest US size to that measurement. Where a measurement falls between two sizes, go up rather than down — a loose ring can be taken in, a ring that will not clear the knuckle cannot be worn.

Do not have a size in any system? Measure it at home in about five minutes.

Frequently asked questions

What is a UK size L in US sizing?

A UK L½ is a US 6, the most common women's size, with an inside diameter of 16.5 mm. A plain UK L sits just below that, between a US 5.5 and a US 6.

What does a European ring size number mean?

Under ISO 8653, the European size is the inside circumference of the band in millimeters. A European 52 is a ring measuring 52 mm around the inside, which corresponds to a US 6.

Are Japanese ring sizes the same as US sizes?

No. Japan uses a separate numeric scale that does not increase in step with the US one — a Japanese 11 is a US 6, but a Japanese 20 is a US 10. Always confirm against the millimeter measurement rather than assuming the numbers align.

How much bigger is a half size?

About 0.2 mm of inside diameter, or roughly 0.65 mm of circumference. It is a small difference on paper and a noticeable one on the finger.

Which sizes do you make?

Every ring is made in US half sizes from 3 to 13. Sizes outside that range are available on request — call (888) 709-7077.

Where to go next

3 CT Emerald Cut Hidden Halo Pavé Lab-Grown Diamond Engagement Ring (3.00 CT Center, ≈3.40 CT TW) – Flash Sale

$1,599.00 ~~$2,649.00~~

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3 CT Emerald Cut Hidden Halo Pavé Lab-Grown Diamond Engagement Ring (3.00 CT Center, ≈3.40 CT TW) – Flash Sale

Diamond Quality - F-G / VS1-VS2

Need help with sizing?

3 CT Emerald Cut Hidden Halo Pavé Lab-Grown Diamond Engagement Ring (3.00 CT Center, ≈3.40 CT TW) – Flash Sale

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