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Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG840640263

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

Certificate IGI LG840640263

Diamond specifications and retailer prices

From €254 EUR
$285 USD
As of November 1, 2026
Save €1,823 EUR (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,077 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840640263 or 840640263. Listed at 16 retailers as of November 1, 2026, with prices from €254 to €2,077, a €1,823 spread on the same certified stone. Brilliant Earth lists it at €2,077. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840640263
Dimensions7.23 × 5.19 × 3.53 mm
L/W Ratio1.39
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.23 mm5.19 mm1.21 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840640263
Side View
Table 61.0%Crown 48.5°Girdle: STK-THKPavilion 34.4°Culet: NoneDepth 68.0%

Caratlytics Score

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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 1
Current: €515 EUR|Low: €254 EUR|High: €1,214 EUR|Avg: €676 EUR|-0.6%
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 3, 2026
Retailer 12€254 EUR
Retailer 8€287 EUR
Retailer 2€292 EUR
Retailer 11€439 EUR
Retailer 15€456 EUR
Retailer 9€468 EUR
Retailer 1€515 EUR
Retailer 7€535 EUR
Retailer 6€686 EUR
Retailer 14€699 EUR
Retailer 13€875 EUR
Retailer 5€918 EUR
Retailer 4€918 EUR
Retailer 10€1,087 EUR
Retailer 3€1,193 EUR

27 data points across 15 retailers

16 retailers€254 EUR to €2,077 EUR

A
Cheapest Retailer
-
€254 EUR
$285 USD
A
Retailer 2
-
€287 EUR
£253 GBP
View
A
Retailer 3
-
€292 EUR
$328 USD
View
Final sale: no returns
A
Retailer 4
-
€439 EUR
View
A
Retailer 5
-
€456 EUR
$511 USD
View
A
Retailer 6
-
€468 EUR
ZAR 8,484 ZAR
View
A
Retailer 7
-
€515 EUR
£455 GBP
View
Retailer 8
-
€535 EUR
$600 USD
View
Price last confirmed 7 days ago
Retailer 9
-
€686 EUR
A$1,184 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
€699 EUR
$784 USD
View
B
Retailer 11
-
€875 EUR
$981 USD
View
B+
Retailer 12
-
€918 EUR
A$1,584 AUD
View
B+
Retailer 13
-
€918 EUR
$1,030 USD
View
B
Retailer 14
-
€1,087 EUR
£960 GBP
View
B
Retailer 15
-
€1,193 EUR
$1,338 USD
View
Most Expensive
B
Brilliant Earth
22340637A · Nov 2
€2,077 EUR
$2,330 USD
View
15 more retailers have this diamond
Prices start from €254 EURSave up to €1,823 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
€254 EUR