Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG620456864

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

Certificate IGI LG620456864

Diamond specifications and retailer prices

From €207 EUR
$231 USD
As of November 1, 2026
Save €948 EUR (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,112 EUR at Do Amore Diamonds · As of November 1, 2026
View at Do Amore 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 LG620456864 or 620456864. Listed at 19 retailers as of November 1, 2026, with a 458% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle46.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620456864
Dimensions7.56 × 5.22 × 3.50 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.56 mm5.22 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620456864
Side View
Table 66.0%Crown 46.1°Girdle: MediumPavilion 35.9°Culet: NoneDepth 67.0%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €534 EUR|Low: €198 EUR|High: €1,146 EUR|Avg: €505 EUR|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 14€207 EUR
Retailer 6€231 EUR
Retailer 4€239 EUR
Retailer 2€256 EUR
Retailer 15€256 EUR
Retailer 7€329 EUR
Retailer 13€343 EUR
Retailer 9€485 EUR
Retailer 1€534 EUR
Retailer 5€538 EUR
Retailer 10€685 EUR
Retailer 8€687 EUR
Retailer 12€825 EUR
Retailer 3€908 EUR
Retailer 11€1,138 EUR

43 data points across 15 retailers

19 retailers€207 EUR to €1,155 EUR

A
Cheapest Retailer
-
€207 EUR
$231 USD
A
Retailer 2
-
€231 EUR
$258 USD
View
Final sale: no returns
A
Retailer 3
-
€239 EUR
$267 USD
View
Retailer 4
-
€256 EUR
$286 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€256 EUR
$286 USD
View
A
Retailer 6
-
€329 EUR
$368 USD
View
A
Retailer 7
-
€343 EUR
$383 USD
View
A
Retailer 8
-
€485 EUR
ZAR 8,757 ZAR
View
B+
Retailer 9
-
€534 EUR
£470 GBP
View
B+
Retailer 10
-
€538 EUR
$601 USD
View
B+
Retailer 11
-
€685 EUR
A$1,177 AUD
View
B+
Retailer 12
-
€687 EUR
A$1,181 AUD
View
B
Retailer 13
-
€825 EUR
$922 USD
View
B
Retailer 14
-
€908 EUR
$1,014 USD
View
B
Retailer 15
-
€1,061 EUR
$1,185 USD
View
Retailer 16
-
€1,138 EUR
£1,001 GBP
View
Price last confirmed 11 days ago
B
Retailer 17
-
€1,155 EUR
$1,290 USD
View
Retailer 18
-
€1,978 EUR
$2,210 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-620456864 · Oct 31
€2,112 EUR
$2,360 USD
View
Price under review
18 more retailers have this diamond
Prices start from €207 EURSave up to €948 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
€207 EUR