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Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG665408906

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG665408906

Diamond specifications and retailer prices

From €583 EUR
$651 USD
As of November 1, 2026
Save €3,329 EUR (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €3,912 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 LG665408906 or 665408906. Listed at 20 retailers as of October 31, 2026, with prices from €583 to €3,912, a €3,329 spread on the same certified stone. Brilliant Earth lists it at €3,912. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665408906
Dimensions7.79 × 6.13 × 4.08 mm
L/W Ratio1.27
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
7.79 mm6.13 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665408906
Side View
Table 62.0%Crown 35.9°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 66.6%

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: Nov 1
Current: €3,912 EUR|Low: €576 EUR|High: €3,912 EUR|Avg: €1,580 EUR|+0.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
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Retailer 19
November 1, 2026
Retailer 16€583 EUR
Retailer 5€645 EUR
Retailer 18€761 EUR
Retailer 4€835 EUR
Retailer 3€979 EUR
Retailer 6€992 EUR
Retailer 12€1,000 EUR
Retailer 17€1,109 EUR
Retailer 13€1,129 EUR
Retailer 7€1,466 EUR
Retailer 15€1,503 EUR
Retailer 10€1,882 EUR
Retailer 11€2,052 EUR
Retailer 9€2,089 EUR
Retailer 14€2,157 EUR
Retailer 8€2,158 EUR
Retailer 19€2,390 EUR
Retailer 2€2,802 EUR
Brilliant Earth€3,912 EUR

37 data points across 19 retailers

20 retailers€583 EUR to €3,912 EUR

A
Cheapest Retailer
-
€583 EUR
$651 USD
Final sale: no returns
Retailer 2
-
€645 EUR
$721 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
€761 EUR
$850 USD
View
A
Retailer 4
-
€835 EUR
$933 USD
View
A
Retailer 5
-
€979 EUR
$1,094 USD
View
A
Retailer 6
-
€992 EUR
$1,108 USD
View
A
Retailer 7
-
€1,000 EUR
£880 GBP
View
A
Retailer 8
-
€1,109 EUR
ZAR 20,017 ZAR
View
A
Retailer 9
-
€1,129 EUR
View
B+
Retailer 10
-
€1,466 EUR
$1,638 USD
View
B+
Retailer 11
-
€1,503 EUR
A$2,584 AUD
View
B+
Retailer 12
-
€1,882 EUR
£1,656 GBP
View
B+
Retailer 13
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€2,052 EUR
$2,292 USD
View
B+
Retailer 14
-
€2,089 EUR
$2,334 USD
View
B+
Retailer 15
-
€2,157 EUR
A$3,707 AUD
View
B
Retailer 16
-
€2,158 EUR
$2,411 USD
View
B
Retailer 17
-
€2,390 EUR
$2,670 USD
View
B+
Retailer 18
-
€2,802 EUR
£2,465 GBP
View
B
Retailer 19
-
€2,984 EUR
$3,334 USD
View
Most Expensive
B
Brilliant Earth
14720158A · Oct 31
€3,912 EUR
$4,370 USD
View
19 more retailers have this diamond
Prices start from €583 EURSave up to €3,329 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
€583 EUR