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Cushion|Lab Grown|IGI

1.50ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG825633209

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

Certificate IGI LG825633209

Diamond specifications and retailer prices

From $918 USD
As of November 1, 2026
Save $3,902 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,820 USD at Brilliant Earth · As of November 2, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825633209 or 825633209. Listed at 14 retailers as of November 1, 2026, with prices from $918 to $4,820, a $3,902 spread on the same certified stone. Brilliant Earth lists it at $4,820. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825633209
Dimensions6.61 × 6.54 × 4.24 mm
L/W Ratio1.01
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
6.61 mm6.54 mm1.50 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825633209
Side View
Table 65.0%Crown 36.6°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 64.8%

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: $1,461 USD|Low: $918 USD|High: $3,611 USD|Avg: $2,088 USD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 11$918 USD
Retailer 7$1,076 USD
Retailer 9$1,130 USD
Retailer 3$1,175 USD
Retailer 2$1,362 USD
Retailer 1$1,461 USD
Retailer 6$1,670 USD
Retailer 5$1,749 USD
Retailer 10$2,978 USD
Retailer 12$3,173 USD
Retailer 4$3,295 USD
Retailer 8$3,567 USD

41 data points across 12 retailers

14 retailers$918 USD to $4,820 USD

A
Cheapest Retailer
-
$918 USD
Final sale: no returns
A
Retailer 2
-
$1,076 USD
£847 GBP
View
A
Retailer 3
-
$1,130 USD
View
A
Retailer 4
-
$1,175 USD
View
A
Retailer 5
-
$1,362 USD
View
A
Retailer 6
-
$1,461 USD
£1,151 GBP
View
B+
Retailer 7
-
$1,670 USD
€1,590 EUR
View
B+
Retailer 8
-
$1,749 USD
ZAR 28,249 ZAR
View
B+
Retailer 9
-
$2,630 USD
View
B
Retailer 10
-
$2,978 USD
View
B
Retailer 11
-
$3,173 USD
View
B
Retailer 12
-
$3,295 USD
View
B
Retailer 13
-
$3,567 USD
£2,809 GBP
View
Most Expensive
B
Brilliant Earth
22411773A · Nov 2
$4,820 USD
View
13 more retailers have this diamond
Prices start from $918 USDSave up to $3,902 USD

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
$918 USD