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Cushion|Lab Grown|IGI

1.45ct D IF Cushion Lab Grown Diamond

D/IF • IGI LG780661400

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

Certificate IGI LG780661400

Diamond specifications and retailer prices

From $465 SGD
$364 USD
As of October 30, 2026
Save $2,961 SGD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,426 SGD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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) and certified by IGI LG780661400 or 780661400. Listed at 13 retailers as of October 30, 2026, with prices from $465 to $3,426, a $2,961 spread on the same certified stone. Do Amore Diamonds lists it at $3,426. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.45
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661400
Dimensions6.70 × 6.58 × 4.31 mm
L/W Ratio1.02
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
6.70 mm6.58 mm1.45 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661400
Side View
Table 62.0%Crown 34.1°Girdle: STK-VTKPavilion 38.9°Culet: NoneDepth 65.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,426 SGD|Low: $465 SGD|High: $3,758 SGD|Avg: $1,761 SGD|-5.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 5$465 SGD
Retailer 3$684 SGD
Retailer 12$692 SGD
Retailer 13$784 SGD
Retailer 9$878 SGD
Retailer 4$1,097 SGD
Retailer 7$1,139 SGD
Retailer 11$1,284 SGD
Retailer 14$1,489 SGD
Retailer 10$2,128 SGD
Retailer 15$2,665 SGD
Retailer 6$2,738 SGD
Retailer 2$2,779 SGD
Retailer 8$3,119 SGD
Do Amore Diamonds$3,426 SGD

28 data points across 15 retailers

13 retailers$465 SGD to $3,426 SGD

A
Cheapest Retailer
-
$465 SGD
$364 USD
Final sale: no returns
A
Retailer 2
-
$684 SGD
$535 USD
View
A
Retailer 3
-
$692 SGD
$541 USD
View
B+
Retailer 4
-
$784 SGD
$613 USD
View
A
Retailer 5
-
$878 SGD
€654 EUR
View
A
Retailer 6
-
$1,097 SGD
$858 USD
View
B+
Retailer 7
-
$1,284 SGD
A$1,545 AUD
View
B+
Retailer 8
-
$1,489 SGD
$1,165 USD
View
B+
Retailer 9
-
$2,128 SGD
£1,311 GBP
View
Retailer 10
-
$2,665 SGD
$2,085 USD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$2,779 SGD
A$3,344 AUD
View
B
Retailer 12
-
$3,119 SGD
$2,440 USD
View
Most Expensive
B
Do Amore Diamonds
27-C1136EE09 · Oct 30
$3,426 SGD
$2,680 USD
View
12 more retailers have this diamond
Prices start from $465 SGDSave up to $2,961 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
$465 SGD