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Cushion|Lab Grown|IGI

1.31ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG840634921

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634921

Diamond specifications and retailer prices

From €415 EUR
$464 USD
As of October 30, 2026
Save €1,705 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,120 EUR at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.31ct lab-grown cushion diamond

This 1.31ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634921 or 840634921. Listed at 14 retailers as of October 30, 2026, with prices from €415 to €2,120, a €1,705 spread on the same certified stone. Helzberg Diamonds lists it at €2,120. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634921
Dimensions7.59 × 5.48 × 3.81 mm
L/W Ratio1.39
Girdle conditionFaceted
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
7.59 mm5.48 mm1.31 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634921
Side View
Table 61.0%Crown 35.2°Girdle: STK-THKPavilion 35.8°Culet: NoneDepth 69.5%

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: Oct 30
Current: €2,120 EUR|Low: €415 EUR|High: €2,120 EUR|Avg: €1,104 EUR
Helzberg Diamonds
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
October 30, 2026
Retailer 3€415 EUR
Retailer 7€487 EUR
Retailer 11€694 EUR
Retailer 4€726 EUR
Retailer 9€737 EUR
Retailer 8€756 EUR
Retailer 10€789 EUR
Retailer 13€860 EUR
Retailer 5€1,457 EUR
Retailer 14€1,508 EUR
Retailer 12€1,690 EUR
Retailer 6€1,741 EUR
Retailer 2€1,853 EUR
Helzberg Diamonds€2,120 EUR

14 data points across 14 retailers

14 retailers€415 EUR to €2,120 EUR

A
Cheapest Retailer
-
€415 EUR
$464 USD
Final sale: no returns
A
Retailer 2
-
€487 EUR
£429 GBP
View
A
Retailer 3
-
€694 EUR
$775 USD
View
A
Retailer 4
-
€726 EUR
$811 USD
View
A
Retailer 5
-
€737 EUR
View
A
Retailer 6
-
€756 EUR
£665 GBP
View
A
Retailer 7
-
€789 EUR
ZAR 14,249 ZAR
View
A
Retailer 8
-
€860 EUR
$961 USD
View
B+
Retailer 9
-
€1,457 EUR
SGD 2,200 SGD
View
B+
Retailer 10
-
€1,508 EUR
$1,684 USD
View
B
Retailer 11
-
€1,690 EUR
£1,487 GBP
View
Retailer 12
-
€1,741 EUR
$1,945 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
€1,853 EUR
$2,070 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKPIH · Oct 30
€2,120 EUR
$2,369 USD
View
13 more retailers have this diamond
Prices start from €415 EURSave up to €1,705 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 Cushion
€415 EUR