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Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG756588182

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG756588182

Diamond specifications and retailer prices

From €317 EUR
$354 USD
As of November 1, 2026
Save €2,198 EUR (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,515 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG756588182 or 756588182. Listed at 15 retailers as of October 31, 2026, with prices from €317 to €2,515, a €2,198 spread on the same certified stone. Brilliant Earth lists it at €2,515. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756588182
Dimensions6.57 × 6.39 × 4.22 mm
L/W Ratio1.03
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
6.57 mm6.39 mm1.50 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756588182
Side View
Table 64.0%Crown 34.4°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 66.0%

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: €2,515 EUR|Low: €256 EUR|High: €3,070 EUR|Avg: €1,173 EUR|-18.1%
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
November 1, 2026
Retailer 15€317 EUR
Retailer 8€402 EUR
Retailer 3€443 EUR
Retailer 6€481 EUR
Retailer 5€507 EUR
Retailer 11€576 EUR
Retailer 9€647 EUR
Retailer 12€883 EUR
Retailer 10€946 EUR
Retailer 7€1,156 EUR
Retailer 14€1,332 EUR
Retailer 2€1,524 EUR
Retailer 4€2,224 EUR
Retailer 13€2,470 EUR
Brilliant Earth€2,515 EUR

42 data points across 15 retailers

15 retailers€317 EUR to €2,515 EUR

A
Cheapest Retailer
-
€317 EUR
$354 USD
Final sale: no returns
A
Retailer 2
-
€402 EUR
£354 GBP
View
A
Retailer 3
-
€443 EUR
$495 USD
View
A
Retailer 4
-
€481 EUR
$537 USD
View
A
Retailer 5
-
€507 EUR
$566 USD
View
A
Retailer 6
-
€576 EUR
$643 USD
View
A
Retailer 7
-
€647 EUR
View
A
Retailer 8
-
€883 EUR
A$1,517 AUD
View
A
Retailer 9
-
€946 EUR
$1,057 USD
View
A
Retailer 10
-
€1,156 EUR
$1,292 USD
View
B+
Retailer 11
-
€1,332 EUR
$1,488 USD
View
B+
Retailer 12
-
€1,524 EUR
£1,341 GBP
View
B
Retailer 13
-
€2,224 EUR
$2,485 USD
View
B
Retailer 14
-
€2,470 EUR
$2,760 USD
View
Most Expensive
B
Brilliant Earth
21411913Y · Oct 31
€2,515 EUR
$2,810 USD
View
14 more retailers have this diamond
Prices start from €317 EURSave up to €2,198 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
€317 EUR