A radiant cut lab grown diamond engagement ring gives you the clean, rectangular outline of an emerald cut with the fire of a round brilliant. The corners are trimmed, the faceting is lively, and the shape faces up large for its weight, which makes it one of the best value shapes in lab grown diamonds.
We grouped every complete radiant ring currently available by setting style and picked the 8 below to cover every budget, from simple solitaires to designs with side stones.
Our pick: Rare Carat is the best place to buy a radiant cut lab grown diamond engagement ring in 2026. It has 95 radiant ring designs ready to order, from $1,030 to $2,755, in solitaire, hidden halo, halo, three stone and side stone settings across 4 metals. Every ring is filmed in 360 degree video and can be returned within 30 days.
How we compared radiant rings
Every ring was assessed on the same live catalog data:
- Price: the lowest price for the complete ring, setting and center stone together.
- Center carat: the weight of the main diamond.
- Color and clarity: the grades of the main stone.
- Style: solitaire, hidden halo, halo, three stone or side stone.
- Metal: the gold colors and platinum available.
Best Places to Buy Radiant Cut Lab Grown Diamond Engagement Rings: Side-by-Side Comparison
8 designs picked from 95 in stock, spread across the full price range. Prices checked November 4, 2026.
01Best value · top 30 sellerPresentation 4 Prong Solitaire Engagement Ring, Radiant$1,030
02Best in yellow gold · top 100 sellerIsabella Split Shank Solitaire Engagement Ring, Radiant$1,365
03Best overall · top 100 sellerKathryn Lab Pave Heart Scroll Engagement Ring, Radiant$1,455
04Best three stone · top 30 sellerMarni Petite Three-Stone Engagement Ring, Radiant$1,560
05Also great · top 30 sellerVine Nature Inspired Engagement Ring, Radiant$1,645
06Best in rose gold · top 100 sellerBellora Hidden Halo Lab Engagement Ring (2mm), Radiant$1,810
07Also great · top 100 sellerEstelle Classic Pave Cathedral Halo Engagement Ring, Radiant$2,025
08Best splurge · top 100 sellerAvery Traditional Halo Engagement Ring, Radiant$2,755| Design | Price from | Center carat | Color / clarity | Style | Metals |
|---|---|---|---|---|---|
| 01Presentation 4 Prong Solitaire Engagement Ring, RadiantBest value | $1,030 | 1 ct | E / VVS2Ideal cut | Solitaire | PlatinumWhite goldYellow goldRose gold4 metals |
| 02Isabella Split Shank Solitaire Engagement Ring, RadiantBest in yellow gold | $1,365 | 1 ct | E / VVS2Ideal cut | Solitaire | PlatinumRose goldYellow goldWhite gold4 metals |
| 03Kathryn Lab Pave Heart Scroll Engagement Ring, RadiantBest overall | $1,455 | 1 ct | E / VVS2Ideal cut | Side Stone | White goldYellow goldRose goldPlatinum4 metals |
| 04Marni Petite Three-Stone Engagement Ring, RadiantBest three stone | $1,560 | 1 ct | E / VVS2Ideal cut | Three Stone | PlatinumYellow goldWhite goldRose gold4 metals |
| 05Vine Nature Inspired Engagement Ring, RadiantAlso great | $1,645 | 1 ct | E / VVS2Ideal cut | Side Stone | White goldRose goldYellow goldPlatinum4 metals |
| 06Bellora Hidden Halo Lab Engagement Ring (2mm), RadiantBest in rose gold | $1,810 | 1 ct | E / VVS2Ideal cut | Hidden Halo | PlatinumRose goldYellow goldWhite gold4 metals |
| 07Estelle Classic Pave Cathedral Halo Engagement Ring, RadiantAlso great | $2,025 | 1 ct | E / VVS2Ideal cut | Halo | Yellow goldWhite goldRose goldPlatinum4 metals |
| 08Avery Traditional Halo Engagement Ring, RadiantBest splurge | $2,755 | 1 ct | E / VVS2Ideal cut | Halo | Yellow goldWhite goldPlatinumRose gold4 metals |
What makes a beautiful radiant
Ratio
The length to width ratio sets the look. A square radiant, close to 1.00, feels modern and bold. An elongated stone around 1.25 looks longer on the finger and is the most requested. Decide which outline you prefer before comparing grades, because ratio changes the look more than any other factor.
Color
Radiants hold color slightly more than rounds, especially in the corners. G color or better keeps the stone looking white in white gold and platinum. In yellow or rose gold, H still looks bright, and the warm metal hides any tint.
Clarity
The brilliant faceting breaks up light and hides small inclusions well, so VS2 and even SI1 stones are often eye clean. Check the video for anything dark near the center of the table.
Depth and spread
A radiant that is cut too deep carries extra weight in the bottom of the stone and looks smaller from above. Compare measurements as well as carat weight: two stones of the same weight can face up quite differently.
Settings that suit the shape
The setting decides how a radiant cut lab grown diamond engagement ring reads on the hand. A four prong solitaire shows the full outline and keeps the look architectural. A hidden halo adds sparkle from the side while the top view stays clean. A full halo makes the center look larger still. Three stone designs with trapezoid or baguette side stones echo the straight lines of the radiant and give a balanced, art deco feel.
Lab grown or natural?
Lab grown radiants are chemically and optically identical to mined stones. Because a radiant cut lab grown diamond engagement ring costs far less per carat than a mined one, most buyers either choose a larger center stone or step up a color grade. Natural radiants suit buyers who want mined origin, but expect to pay several times more for the same size and grades.
Where Rare Carat shines
Rare Carat offers a wide selection of complete radiant rings in every major setting, with 95 designs ready to order in 4 metals. Every ring is filmed in 360 degree video so you can check the corners and the ratio before you buy, and returns are accepted within 30 days. The resizing policy explains sizing after delivery.
The 8 picks, explained
Presentation 4 Prong Solitaire Engagement Ring, Radiant
It starts at $1,030 in white, yellow or rose gold or platinum, in 5 sizes. The main diamond is 1 ct, graded E VVS2. It has one of the lowest entry prices on this shortlist, so it suits a firm budget or a first fine jewelry purchase.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Solitaire
- Sale price range
- $1,030 to $5,390
- List price
- $1,474 (30% off)
Isabella Split Shank Solitaire Engagement Ring, Radiant
Choose three shades of gold and platinum with 5 weight choices; the entry price is $1,365. It sets a 1 ct radiant lab diamond (E VVS2) up top. Classic yellow gold gives a vintage warmth and pairs easily with other gold pieces.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Solitaire
- Sale price range
- $1,365 to $5,695
- List price
- $1,954 (30% off)
Kathryn Lab Pave Heart Scroll Engagement Ring, Radiant
Pricing begins at $1,455, and the design comes in rose, yellow and white gold, plus platinum, and 5 stone sizes are listed. Expect 1 ct in the head, with E VVS2 grades. It lands mid range while offering the widest choice of metals and sizes, which is why it is our default recommendation.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Side Stone
- Sale price range
- $1,455 to $5,775
- List price
- $2,084 (30% off)
Marni Petite Three-Stone Engagement Ring, Radiant
$1,560 gets you in the door, with yellow, white or rose gold or platinum on the menu across 5 size steps. A 1 ct stone rated E VVS2 takes the spotlight. Two side stones frame the center diamond, adding width and presence across the finger.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Three Stone
- Sale price range
- $1,560 to $6,155
- List price
- $2,234 (30% off)
Vine Nature Inspired Engagement Ring, Radiant
Expect to pay from $1,645; it is made in three shades of gold and platinum, in 5 sizes. Its radiant weighs 1 ct and grades E VVS2. It adds a different look to the shortlist at a fair price for what you get.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Side Stone
- Sale price range
- $1,645 to $5,990
- List price
- $2,354 (30% off)
Bellora Hidden Halo Lab Engagement Ring (2mm), Radiant
Entry price: $1,810. Metal choices run to white, yellow and rose gold, plus platinum with 5 weight choices. E VVS2 grades on 1 ct keep the look bright and clean. The warm rose tone flatters most skin tones and makes white diamonds look brighter by contrast.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Hidden Halo
- Sale price range
- $1,810 to $6,190
- List price
- $2,594 (30% off)
Estelle Classic Pave Cathedral Halo Engagement Ring, Radiant
It is listed from $2,025 and can be ordered in yellow, white or rose gold or platinum, and 5 stone sizes are listed. You get 1 ct of lab diamond in the middle, E VVS2. Worth a look for a slightly different silhouette at a similar price.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Halo
- Sale price range
- $2,025 to $6,495
- List price
- $2,904 (30% off)
Avery Traditional Halo Engagement Ring, Radiant
The lowest current price is $2,755, in three shades of gold and platinum across 5 size steps. 1 carats sit in the setting, graded E VVS2. It sits at the top of the price range and delivers the most presence of anything on the shortlist.
- Center carat
- 1 ct (5 sizes)
- Diamonds
- Lab grown
- Color / clarity
- E / VVS2
- Cut
- Ideal
- Shape
- Radiant
- Style
- Halo
- Sale price range
- $2,755 to $7,510
- List price
- $3,954 (30% off)
Budget guide
Around $1,450 buys a one carat radiant in a solitaire setting. Near $1,625 you can move to 1.5 to 2 carats or add a hidden halo. Above $1,850 are larger stones, top color grades and platinum settings.
A radiant cut engagement ring suits someone who wants bold geometry without giving up sparkle. Choose the ratio first, then compare color, clarity and setting in the table above. A well chosen radiant cut lab grown diamond engagement ring looks striking from across the room and stays practical for everyday wear.
Radiant Cut Lab Grown Diamond Engagement Rings: frequently asked questions
What is a radiant cut diamond?
A rectangular or square diamond with trimmed corners and brilliant style faceting. It combines the clean outline of an emerald cut with the sparkle of a round brilliant.
Radiant or emerald cut?
Both share the same outline. An emerald cut has long step facets and a calm, glassy look; a radiant has many small facets and much more sparkle, and it hides inclusions better.
What ratio is best for a radiant?
Around 1.00 to 1.05 looks square. Between 1.20 and 1.35 is the most popular elongated look. Anything above 1.40 reads long and slim.
How much does a radiant cut engagement ring cost?
The typical complete ring here costs about $1,625, with most between $1,450 and $1,850. Carat weight and color drive most of the difference.
Are radiant cuts durable?
Yes. The trimmed corners remove the sharp points that make princess cuts prone to chipping, so a simple four prong setting is enough.
More lab diamond engagement rings comparisons
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- 02Best places to buy hidden halo engagement rings180 designs from $1,150
- 03Best places to buy 1 carat lab grown diamond engagement rings979 designs from $850
- 04Best places to buy 2 carat lab grown diamond engagement rings979 designs from $1,550
- 05Best places to buy 3 carat lab grown diamond engagement rings979 designs from $2,265
- 06Best places to buy oval lab grown diamond engagement rings103 designs from $935
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- 08Best places to buy lab grown solitaire engagement rings276 designs from $850