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Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG836639791

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836639791

Diamond specifications and retailer prices

From $616 SGD
£379 GBP
As of October 30, 2026
Save $3,155 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,771 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836639791 or 836639791. Listed at 14 retailers as of October 30, 2026, with prices from $616 to $3,771, a $3,155 spread on the same certified stone. Do Amore Diamonds lists it at $3,771. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836639791
Dimensions7.80 × 6.18 × 4.07 mm
L/W Ratio1.26
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
7.80 mm6.18 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836639791
Side View
Table 63.0%Crown 32.4°Girdle: STK-THKPavilion 36.4°Culet: NoneDepth 65.9%

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: $3,771 SGD|Low: $615 SGD|High: $4,385 SGD|Avg: $1,986 SGD|-2.6%
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
Retailer 16
October 31, 2026
Retailer 12$616 SGD
Retailer 14$739 SGD
Retailer 9$748 SGD
Retailer 15$851 SGD
Retailer 5$885 SGD
Retailer 2$949 SGD
Retailer 6$1,027 SGD
Retailer 13$1,348 SGD
Retailer 16$1,601 SGD
Retailer 4$2,322 SGD
Retailer 7$2,789 SGD
Retailer 10$3,080 SGD
Retailer 8$3,094 SGD
Retailer 3$3,177 SGD
Retailer 11$3,592 SGD
Do Amore Diamonds$3,771 SGD

37 data points across 16 retailers

14 retailers$616 SGD to $3,771 SGD

A
Cheapest Retailer
-
$616 SGD
£379 GBP
A
Retailer 2
-
$739 SGD
$578 USD
View
A
Retailer 3
-
$748 SGD
$585 USD
View
A
Retailer 4
-
$851 SGD
$666 USD
View
Retailer 5
-
$885 SGD
$692 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$949 SGD
€707 EUR
View
A
Retailer 7
-
$1,027 SGD
$803 USD
View
A
Retailer 8
-
$1,348 SGD
A$1,622 AUD
View
A
Retailer 9
-
$1,601 SGD
$1,252 USD
View
Retailer 10
-
$2,322 SGD
£1,430 GBP
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$3,080 SGD
A$3,707 AUD
View
Retailer 12
-
$3,177 SGD
$2,485 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$3,592 SGD
$2,810 USD
View
Most Expensive
B
Do Amore Diamonds
27-4E6B4A7E5 · Oct 31
$3,771 SGD
$2,950 USD
View
13 more retailers have this diamond
Prices start from $616 SGDSave up to $3,155 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
1.50ct Cushion
$616 SGD