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Cushion|Lab Grown|IGI

1.45ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG739546475

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG739546475

Diamond specifications and retailer prices

From $514 SGD
$402 USD
As of October 30, 2026
Save $2,631 SGD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,145 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.45ct lab-grown cushion diamond

This 1.45ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG739546475 or 739546475. Listed at 19 retailers as of October 30, 2026, with prices from $514 to $3,145, a $2,631 spread on the same certified stone. Brilliant Earth lists it at $3,145. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739546475
Dimensions7.67 × 6.04 × 3.99 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
7.67 mm6.04 mm1.45 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739546475
Side View
Table 61.0%Crown 36.5°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 66.1%

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: $3,145 SGD|Low: $514 SGD|High: $3,707 SGD|Avg: $1,544 SGD|-15.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 9$514 SGD
Retailer 12$761 SGD
Retailer 13$805 SGD
Retailer 5$892 SGD
Retailer 6$928 SGD
Retailer 8$980 SGD
Retailer 2$1,028 SGD
Retailer 7$1,385 SGD
Retailer 4$1,911 SGD
Retailer 11$2,241 SGD
Retailer 10$2,685 SGD
Retailer 3$2,815 SGD
Brilliant Earth$3,145 SGD

38 data points across 13 retailers

19 retailers$514 SGD to $3,145 SGD

A
Cheapest Retailer
-
$514 SGD
$402 USD
Final sale: no returns
A
Retailer 2
-
$655 SGD
HK$4,000 HKD
View
A
Retailer 3
-
$761 SGD
$595 USD
View
A
Retailer 4
-
$805 SGD
$630 USD
View
A
Retailer 5
-
$892 SGD
$698 USD
View
A
Retailer 6
-
$928 SGD
€691 EUR
View
A
Retailer 7
-
$980 SGD
ZAR 12,386 ZAR
View
A
Retailer 8
-
$1,028 SGD
£633 GBP
View
A
Retailer 9
-
$1,305 SGD
$1,021 USD
View
A
Retailer 10
-
$1,385 SGD
A$1,667 AUD
View
A
Retailer 11
-
$1,404 SGD
$1,098 USD
View
B+
Retailer 12
-
$1,641 SGD
$1,284 USD
View
B+
Retailer 13
-
$1,885 SGD
$1,475 USD
View
B+
Retailer 14
-
$1,911 SGD
View
B+
Retailer 15
-
$2,178 SGD
$1,704 USD
View
B+
Retailer 16
-
$2,241 SGD
£1,380 GBP
View
Retailer 17
-
$2,685 SGD
$2,100 USD
View
Price last confirmed 13 days ago
Retailer 18
-
$2,815 SGD
A$3,388 AUD
View
Price last confirmed 26 days ago
Most Expensive
B
Brilliant Earth
16164200A · Oct 30
$3,145 SGD
$2,460 USD
View
18 more retailers have this diamond
Prices start from $514 SGDSave up to $2,631 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
1.45ct Cushion
$514 SGD