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Radiant|Lab Grown|IGI

1.31ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG602388297

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

Certificate IGI LG602388297

Diamond specifications and retailer prices

From €254 EUR
$285 USD
As of October 30, 2026
Save €1,690 EUR (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,944 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.31ct lab-grown radiant diamond

This 1.31ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG602388297 or 602388297. Listed at 22 retailers as of October 30, 2026, with prices from €254 to €1,944, a €1,690 spread on the same certified stone. Brilliant Earth lists it at €1,944. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602388297
Dimensions7.96 × 5.44 × 3.63 mm
L/W Ratio1.46
Culet sizePointed
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
7.96 mm5.44 mm1.31 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602388297
Side View
Table 66.0%Crown 43°Girdle: MediumPavilion 35.8°Culet: NoneDepth 66.7%

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: Oct 30
Current: €1,944 EUR|Low: €244 EUR|High: €1,944 EUR|Avg: €679 EUR|+0.9%
Brilliant Earth
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
Retailer 16
November 1, 2026
Retailer 3€254 EUR
Retailer 7€295 EUR
Retailer 4€316 EUR
Retailer 8€316 EUR
Retailer 9€333 EUR
Retailer 15€455 EUR
Retailer 11€516 EUR
Retailer 6€519 EUR
Retailer 14€542 EUR
Retailer 10€557 EUR
Retailer 13€767 EUR
Retailer 16€968 EUR
Retailer 5€1,013 EUR
Retailer 12€1,058 EUR
Retailer 2€1,264 EUR
Brilliant Earth€1,944 EUR

38 data points across 16 retailers

22 retailers€254 EUR to €1,944 EUR

A
Cheapest Retailer
-
€254 EUR
$285 USD
A
Retailer 2
-
€284 EUR
$319 USD
View
Final sale: no returns
A
Retailer 3
-
€295 EUR
$331 USD
View
A
Retailer 4
-
€316 EUR
$354 USD
View
Retailer 5
-
€316 EUR
$354 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
€333 EUR
£294 GBP
View
A
Retailer 7
-
€455 EUR
$510 USD
View
A
Retailer 8
-
€516 EUR
View
A
Retailer 9
-
€519 EUR
$582 USD
View
A
Retailer 10
-
€542 EUR
ZAR 9,813 ZAR
View
A
Retailer 11
-
€557 EUR
£492 GBP
View
A
Retailer 12
-
€607 EUR
$681 USD
View
B+
Retailer 13
-
€767 EUR
A$1,323 AUD
View
B+
Retailer 14
-
€818 EUR
$917 USD
View
B+
Retailer 15
-
€968 EUR
$1,086 USD
View
B+
Retailer 16
-
€1,013 EUR
$1,136 USD
View
B+
Retailer 17
-
€1,057 EUR
$1,186 USD
View
B+
Retailer 18
-
€1,058 EUR
A$1,826 AUD
View
B
Retailer 19
-
€1,164 EUR
$1,305 USD
View
B
Retailer 20
-
€1,223 EUR
£1,080 GBP
View
B+
Retailer 21
-
€1,264 EUR
£1,116 GBP
View
Most Expensive
B
Brilliant Earth
8263391A · Oct 31
€1,944 EUR
$2,180 USD
View
21 more retailers have this diamond
Prices start from €254 EURSave up to €1,690 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
1.31ct Radiant
€254 EUR