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Cushion|Lab Grown|IGI

1.50ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG798603812

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG798603812

Diamond specifications and retailer prices

From €435 EUR
$486 USD
As of October 30, 2026
Save €2,055 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,490 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG798603812 or 798603812. Listed at 19 retailers as of October 27, 2026, with prices from €435 to €2,490, a €2,055 spread on the same certified stone. Queensmith lists it at €2,490. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798603812
Dimensions7.70 × 6.02 × 3.86 mm
L/W Ratio1.28
Girdle conditionFaceted
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
7.70 mm6.02 mm1.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798603812
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 64.1%

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: €1,370 EUR|Low: €435 EUR|High: €2,712 EUR|Avg: €1,197 EUR|+0.5%
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 9€435 EUR
Retailer 7€482 EUR
Retailer 8€646 EUR
Retailer 15€649 EUR
Retailer 13€740 EUR
Retailer 2€763 EUR
Retailer 11€796 EUR
Retailer 14€829 EUR
Retailer 4€941 EUR
Retailer 12€1,123 EUR
Retailer 17€1,165 EUR
Retailer 1€1,370 EUR
Retailer 6€1,579 EUR
Retailer 3€1,738 EUR
Retailer 16€1,773 EUR
Retailer 5€1,805 EUR
Retailer 10€2,166 EUR

38 data points across 17 retailers

19 retailers€435 EUR to €2,490 EUR

A
Cheapest Retailer
-
€435 EUR
$486 USD
Final sale: no returns
A
Retailer 2
-
€482 EUR
$539 USD
View
A
Retailer 3
-
€646 EUR
$722 USD
View
A
Retailer 4
-
€649 EUR
$725 USD
View
A
Retailer 5
-
€740 EUR
View
A
Retailer 6
-
€763 EUR
$852 USD
View
A
Retailer 7
-
€796 EUR
£700 GBP
View
A
Retailer 8
-
€829 EUR
ZAR 14,958 ZAR
View
A
Retailer 9
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€941 EUR
$1,051 USD
View
A
Retailer 10
-
€1,123 EUR
A$1,930 AUD
View
A
Retailer 11
-
€1,165 EUR
$1,302 USD
View
B+
Retailer 12
-
€1,370 EUR
A$2,354 AUD
View
B+
Retailer 13
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€1,504 EUR
$1,680 USD
View
B+
Retailer 14
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€1,579 EUR
$1,764 USD
View
B+
Retailer 15
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€1,738 EUR
$1,942 USD
View
B+
Retailer 16
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€1,773 EUR
£1,560 GBP
View
B+
Retailer 17
-
€1,805 EUR
$2,016 USD
View
B
Retailer 18
-
€2,166 EUR
$2,420 USD
View
Most Expensive
B
Queensmith
LG798603812 · Oct 27
€2,490 EUR
£2,190 GBP
View
18 more retailers have this diamond
Prices start from €435 EURSave up to €2,055 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
1.50ct Cushion
€435 EUR