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18K Gold Halo Diamond Ring featuring a round brilliant lab-grown diamond center stone (0.50ct), surrounded by pavé diamonds in a halo setting. Dainty, minimalist design worn on hand in natural light. Promise, engagement ring or birthday gift for her.
Three 18K Gold Halo Diamond Rings stacked on finger, each featuring a round lab-grown diamond in the center. Shown in yellow, white, and rose gold. Dainty minimalist promise and engagement ring set
18K Gold Halo Diamond Ring with 3.7MM Round Lab-Grown Center Diamond (0.20ct), shown on finger in rose, white, and yellow gold. Dainty and minimal promise ring, pavé halo design for everyday fine jewelry look.
18K White Gold Halo Diamond Ring featuring a 5.2MM Round Lab-Grown Center Diamond (0.50ct) in a pavé halo setting, worn on finger. Designed with a slim, polished straight shank for a minimalist and timeless look — perfect as a promise or engagement ring.
Trio of 18K Gold Halo Diamond Rings worn on hand, featuring round lab-grown center diamonds in 0.30ct, 0.40ct, and 0.50ct sizes. Each ring is set with a pavé diamond halo and a slim, polished straight shank in yellow, white, and rose gold. Minimalist and elegant fine jewelry for everyday wear, engagement, or gifting.
18K Gold Lab Diamond Halo Ring: Dainty Promise Ring, 0.20-0.50ct
Jewel Frost signature packaging featuring a round light blue leather zip case with gold zipper, black velvet interior, and monogram "JF" branding. Includes a soft-touch envelope and gift-wrapped box, ideal for gifting fine jewelry.

18K Gold Lab Diamond Halo Ring: Dainty Promise Ring, 0.20-0.50ct

Sale price$716.34 USD Regular price$1,591.87 USD
55% OFF APPLIED
18K Solid Gold Lab Diamond Appraisal Certificate
18K Solid Gold Primary Color & Size:

18K Solid Gold Primary Color & Size
Ring Size:
Ring Size Guide

Find your US size using the international chart below. Conversions are approximate; available sizes vary by design.

Swipe the chart sideways for all countries and scroll down for more sizes. The US column stays visible.

US / Canada UK / Australia France Japan Italy
3 F 44 4 4
3.5 G 45.5 5 5¼
4 H 47 7 6½
4.5 I 48 8 7¾
5 J½ 49 9 9
5.5 K½ 50.5 10 10¼
6 L½ 52 12 11½
6.5 M½ 53 13 12¾
7 N½ 54.5 14 14
7.5 O½ 56 15 15¼
8 P½ 57 16 16½
8.5 Q½ 58.5 17 17¾
9 R½ 60 18 19
9.5 S½ 61 19 20¼
10 T½ 62 20 21½
10.5 U½ 63.5 22 22¾
11 V½ 65 23 24
11.5 W½ 66 24 25¼
12 X½ 67.5 25 26½
12.5 Z 69 26 27¾
13 — 70 27 29

Missing your size? Please ask us before rounding to another size. Indian, Chinese and Hong Kong sizes are not automatically equivalent to Japanese sizes.

Measurements in mm + US quarter sizes

Diameter = straight across the inside. Circumference = around the inside.

US / Canada Inside diameter
(mm, approx.)		 Inside circumference
(mm)
3 14.1 44.2
3.25 14.3 44.8
3.5 14.5 45.5
3.75 14.7 46.1
4 14.9 46.8
4.25 15.1 47.4
4.5 15.3 48.0
4.75 15.5 48.7
5 15.7 49.3
5.25 15.9 50.0
5.5 16.1 50.6
5.75 16.3 51.2
6 16.5 51.9
6.25 16.7 52.5
6.5 16.9 53.1
6.75 17.1 53.8
7 17.3 54.4
7.25 17.5 55.1
7.5 17.7 55.7
7.75 17.9 56.3
8 18.1 57.0
8.25 18.3 57.6
8.5 18.6 58.3
8.75 18.7 58.9
9 18.9 59.5
9.25 19.2 60.2
9.5 19.4 60.8
9.75 19.5 61.4
10 19.8 62.1
10.25 20.0 62.7
10.5 20.2 63.4
10.75 20.4 64.0
11 20.6 64.6
11.25 20.8 65.3
11.5 21.0 65.9
11.75 21.2 66.6
12 21.4 67.2
How to measure your ring or finger

Use a ring: Measure across the center of a ring that fits the intended finger, inside edge to inside edge. Match the diameter above.

Inside diameter · not to scale

Use paper: Wrap a narrow strip snugly around the finger base, mark the overlap, then measure from the start to the mark in mm. Match the circumference above.

1. Wrap
Snug around the base.
2. Mark
Where the ends meet.
0 Measure in mm
3. Measure
From the start to your mark.

Illustrations are not to scale. Measure at normal room temperature. For the most dependable fit, especially with wide bands or a larger knuckle, use a jeweler's ring sizer.

Between sizes? Email info@jewel-frost.com with your size, country and product link.

Ring Size

Mini diamond halo ring crafted in solid 18K gold. This delicate and minimalist round halo design features a lab-grown diamond center in your choice of 0.20ct to 0.50ct. A dainty promise ring — perfect for gifting, proposals, or everyday sparkle

FEATURES
• Gold Kt: 18K Solid Gold
• Diamond Type: Lab Grown Diamond
• Center Diamond CT: 0.20 ct / 0.30 ct / 0.40 ct / 0.50 ct
• Total Number of Stones: 17 pcs
• Diamond Cut: Round
• Diamond Clarity: VS+
• Diamond Color: EF+
• Ring Width: 8mm with Halo (For All Rings)
• Shank Width: 1.6mm
• Setting Type: Prong Setting
• Comes in Jewel Frost packaging
18K Gold Halo Diamond Ring featuring a round brilliant lab-grown diamond center stone (0.50ct), surrounded by pavé diamonds in a halo setting. Dainty, minimalist design worn on hand in natural light. Promise, engagement ring or birthday gift for her.
18K Gold Lab Diamond Halo Ring: Dainty Promise Ring, 0.20-0.50ct Sale price$716.34 USD Regular price$1,591.87 USD

Free Insured Shipping

Complimentary insured delivery, US and international.

30-Day Returns

Free U.S. returns on eligible orders.

Fine Materials

Solid 14K gold with natural or lab-grown diamonds.

Appraisal Included

An appraisal accompanies every diamond order.

One-Year Warranty

Shop with confidence, backed by our warranty.