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 €231 EUR
$258 USD
As of October 30, 2026
Save €925 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,156 EUR at Reve Diamonds · As of November 1, 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 October 30, 2026, with prices from €231 to €1,156, a €925 spread on the same certified stone. Reve Diamonds lists it at €1,156. 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: Oct 30
Current: €1,026 EUR|Low: €231 EUR|High: €1,156 EUR|Avg: €661 EUR|-1.1%
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 1, 2026
Retailer 9€231 EUR
Retailer 8€345 EUR
Retailer 4€428 EUR
Retailer 5€440 EUR
Retailer 10€451 EUR
Retailer 6€658 EUR
Retailer 7€672 EUR
Retailer 3€827 EUR
Retailer 2€869 EUR
Retailer 11€870 EUR
Retailer 1€1,026 EUR
Reve Diamonds€1,156 EUR

25 data points across 12 retailers

13 retailers€231 EUR to €1,156 EUR

A
Cheapest Retailer
-
€231 EUR
$258 USD
Final sale: no returns
A
Retailer 2
-
€345 EUR
$385 USD
View
A
Retailer 3
-
€428 EUR
View
A
Retailer 4
-
€440 EUR
ZAR 7,943 ZAR
View
B+
Retailer 5
-
€451 EUR
$504 USD
View
Retailer 6
-
€658 EUR
$735 USD
View
Price last confirmed 13 days ago
B
Retailer 7
-
€672 EUR
$751 USD
View
B
Retailer 8
-
€827 EUR
SGD 1,249 SGD
View
Retailer 9
-
€832 EUR
$930 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
€870 EUR
$972 USD
View
B
Retailer 11
-
€887 EUR
$991 USD
View
B
Retailer 12
-
€1,026 EUR
£903 GBP
View
Most Expensive
B
Reve Diamonds
CABC4399D · Nov 1
€1,156 EUR
$1,292 USD
View
12 more retailers have this diamond
Prices start from €231 EURSave up to €925 EUR

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
€231 EUR