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Cushion|Lab Grown|IGI

1.50ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG818683709

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818683709

Diamond specifications and retailer prices

From €428 EUR
$480 USD
As of October 30, 2026
Save €2,773 EUR (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,201 EUR at Brilliant Earth · As of October 29, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818683709 or 818683709. Listed at 10 retailers as of October 29, 2026, with prices from €428 to €3,201, a €2,773 spread on the same certified stone. Brilliant Earth lists it at €3,201. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683709
Dimensions7.26 × 6.19 × 4.07 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.26 mm6.19 mm1.50 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683709
Side View
Table 64.0%Crown 40.1°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 65.8%

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: €3,201 EUR|Low: €428 EUR|High: €3,201 EUR|Avg: €1,663 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4€428 EUR
Retailer 2€515 EUR
Retailer 3€559 EUR
Retailer 6€882 EUR
Retailer 7€1,069 EUR
Retailer 9€1,285 EUR
Retailer 5€1,288 EUR
Retailer 8€1,333 EUR
Retailer 10€1,770 EUR
Brilliant Earth€3,201 EUR

42 data points across 10 retailers

10 retailers€428 EUR to €3,201 EUR

A
Cheapest Retailer
-
€428 EUR
$480 USD
A
Retailer 2
-
€515 EUR
View
A
Retailer 3
-
€559 EUR
£494 GBP
View
A
Retailer 4
-
€882 EUR
$989 USD
View
A
Retailer 5
-
€1,069 EUR
$1,199 USD
View
A
Retailer 6
-
€1,285 EUR
£1,135 GBP
View
A
Retailer 7
-
€1,288 EUR
A$2,222 AUD
View
B+
Retailer 8
-
€1,333 EUR
$1,495 USD
View
Retailer 9
-
€1,770 EUR
$1,985 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
22200346A · Oct 29
€3,201 EUR
$3,590 USD
View
9 more retailers have this diamond
Prices start from €428 EURSave up to €2,773 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
€428 EUR