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Cushion|Lab Grown|IGI

1.50ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799671302

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

Certificate IGI LG799671302

Diamond specifications and retailer prices

From $1,201 AUD
$842 USD
As of November 2, 2026
Save $4,278 AUD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,479 AUD 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 LG799671302 or 799671302. Listed at 12 retailers as of November 2, 2026, with prices from $1,201 to $5,479, a $4,278 spread on the same certified stone. Brilliant Earth lists it at $5,479. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799671302
Dimensions6.76 × 6.54 × 4.36 mm
L/W Ratio1.03
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
6.76 mm6.54 mm1.50 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799671302
Side View
Table 58.0%Crown 37.8°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $5,479 AUD|Low: $1,201 AUD|High: $6,778 AUD|Avg: $3,100 AUD|-19.2%
Brilliant Earth
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 12$1,201 AUD
Retailer 9$1,344 AUD
Retailer 8$1,425 AUD
Retailer 3$1,624 AUD
Retailer 2$1,704 AUD
Retailer 6$1,756 AUD
Retailer 11$2,731 AUD
Retailer 7$3,753 AUD
Retailer 4$3,879 AUD
Retailer 5$4,536 AUD
Retailer 10$4,660 AUD
Brilliant Earth$5,479 AUD

41 data points across 12 retailers

12 retailers$1,201 AUD to $5,479 AUD

A
Cheapest Retailer
-
$1,201 AUD
$842 USD
A
Retailer 2
-
$1,344 AUD
$942 USD
View
A
Retailer 3
-
$1,425 AUD
HK$7,800 HKD
View
A
Retailer 4
-
$1,624 AUD
$1,138 USD
View
A
Retailer 5
-
$1,704 AUD
£940 GBP
View
A
Retailer 6
-
$1,756 AUD
€1,172 EUR
View
Retailer 7
-
$2,731 AUD
$1,914 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
$3,753 AUD
$2,630 USD
View
B
Retailer 9
-
$3,879 AUD
$2,719 USD
View
B
Retailer 10
-
$4,536 AUD
£2,503 GBP
View
B
Retailer 11
-
$4,660 AUD
$3,266 USD
View
Most Expensive
B
Brilliant Earth
20869651Y · Nov 2
$5,479 AUD
$3,840 USD
View
11 more retailers have this diamond
Prices start from $1,201 AUDSave up to $4,278 AUD

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
$1,201 AUD