Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG831633282

Shape and cutting style on the report: Cut cornered square modified brilliant

Certificate IGI LG831633282

Diamond specifications and retailer prices

From $258 USD
As of November 4, 2026
Save $1,034 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,292 USD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831633282 or 831633282. Listed at 13 retailers as of November 4, 2026, with prices from $258 to $1,292, a $1,034 spread on the same certified stone. Reve Diamonds lists it at $1,292. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831633282
Dimensions5.98 × 5.92 × 3.86 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.98 mm5.92 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831633282
Side View
Table 63.0%Crown 40.7°Girdle: MediumPavilion 35.1°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,144 USD|Low: $258 USD|High: $1,292 USD|Avg: $739 USD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
November 5, 2026
Retailer 9$258 USD
Retailer 8$385 USD
Retailer 6$477 USD
Retailer 5$494 USD
Retailer 10$504 USD
Retailer 7$735 USD
Retailer 4$758 USD
Retailer 3$924 USD
Retailer 2$971 USD
Retailer 11$972 USD
Retailer 1$1,144 USD
Reve Diamonds$1,292 USD

25 data points across 12 retailers

13 retailers$258 USD to $1,292 USD

A
Cheapest Retailer
-
$258 USD
Final sale: no returns
A
Retailer 2
-
$385 USD
View
A
Retailer 3
-
$477 USD
View
A
Retailer 4
-
$494 USD
View
B+
Retailer 5
-
$504 USD
View
Retailer 6
-
$735 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$758 USD
View
B
Retailer 8
-
$924 USD
View
Retailer 9
-
$930 USD
View
Price last confirmed 14 days ago
B
Retailer 10
-
$972 USD
View
B
Retailer 11
-
$991 USD
View
B
Retailer 12
-
$1,144 USD
View
Most Expensive
B
Reve Diamonds
CABC4399D · Nov 4
$1,292 USD
View
12 more retailers have this diamond
Prices start from $258 USDSave up to $1,034 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.21ct Radiant
$258 USD