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Cushion|Lab Grown|IGI

1.51ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG626419440

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG626419440

Diamond specifications and retailer prices

From $626 SGD
$490 USD
As of October 30, 2026
Save $2,467 SGD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,094 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG626419440 or 626419440. Listed at 8 retailers as of October 30, 2026, with prices from $626 to $3,094, a $2,467 spread on the same certified stone. Brilliant Earth lists it at $3,094. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626419440
Dimensions6.66 × 6.64 × 4.48 mm
L/W Ratio1.00
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
6.66 mm6.64 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626419440
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,094 SGD|Low: $626 SGD|High: $6,473 SGD|Avg: $1,947 SGD|-18.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6$626 SGD
Retailer 8$933 SGD
Retailer 4$933 SGD
Retailer 7$1,069 SGD
Retailer 2$1,965 SGD
Retailer 5$2,691 SGD
Retailer 3$2,787 SGD
Brilliant Earth$3,094 SGD

12 data points across 8 retailers

8 retailers$626 SGD to $3,094 SGD

A
Cheapest Retailer
-
$626 SGD
$490 USD
Final sale: no returns
A
Retailer 2
-
$933 SGD
HK$5,700 HKD
View
A
Retailer 3
-
$933 SGD
$730 USD
View
A
Retailer 4
-
$1,069 SGD
$836 USD
View
B+
Retailer 5
-
$1,965 SGD
A$2,365 AUD
View
B+
Retailer 6
-
$2,691 SGD
View
Retailer 7
-
$2,787 SGD
$2,180 USD
View
Price last confirmed 10 days ago
Most Expensive
B+
Brilliant Earth
15233891Y · Oct 30
$3,094 SGD
$2,420 USD
View
7 more retailers have this diamond
Prices start from $626 SGDSave up to $2,467 SGD

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
1.51ct Cushion
$626 SGD