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Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG818678241

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818678241

Diamond specifications and retailer prices

From $786 SGD
$615 USD
As of October 30, 2026
Save $3,035 SGD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,821 SGD at With Clarity · As of October 31, 2026
View at With Clarity

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 LG818678241 or 818678241. Listed at 15 retailers as of October 30, 2026, with prices from $786 to $3,821, a $3,035 spread on the same certified stone. With Clarity lists it at $3,821. 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 angle33.8°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818678241
Dimensions8.26 × 5.85 × 3.84 mm
L/W Ratio1.41
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
8.26 mm5.85 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818678241
Side View
Table 56.0%Crown 33.8°Girdle: MED-STKPavilion 35°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
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: $1,302 SGD|Low: $786 SGD|High: $3,821 SGD|Avg: $1,926 SGD|-0.7%
Retailer 1
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
With Clarity
October 31, 2026
Retailer 6$786 SGD
Retailer 9$923 SGD
Retailer 13$949 SGD
Retailer 11$1,042 SGD
Retailer 12$1,145 SGD
Retailer 5$1,166 SGD
Retailer 1$1,302 SGD
Retailer 10$1,385 SGD
Retailer 2$1,495 SGD
Retailer 7$2,027 SGD
Retailer 14$2,801 SGD
Retailer 4$2,823 SGD
Retailer 8$2,949 SGD
Retailer 3$3,637 SGD
With Clarity$3,821 SGD

4 data points across 15 retailers

15 retailers$786 SGD to $3,821 SGD

A
Cheapest Retailer
-
$786 SGD
$615 USD
Final sale: no returns
A
Retailer 2
-
$923 SGD
£568 GBP
View
A
Retailer 3
-
$949 SGD
HK$5,800 HKD
View
A
Retailer 4
-
$1,042 SGD
$815 USD
View
A
Retailer 5
-
$1,145 SGD
$896 USD
View
A
Retailer 6
-
$1,166 SGD
$912 USD
View
A
Retailer 7
-
$1,302 SGD
€970 EUR
View
A
Retailer 8
-
$1,385 SGD
$1,083 USD
View
A
Retailer 9
-
$1,495 SGD
ZAR 18,893 ZAR
View
B+
Retailer 10
-
$2,027 SGD
A$2,439 AUD
View
B+
Retailer 11
-
$2,801 SGD
$2,191 USD
View
B+
Retailer 12
-
$2,823 SGD
$2,208 USD
View
B
Retailer 13
-
$2,949 SGD
$2,307 USD
View
B
Retailer 14
-
$3,637 SGD
£2,240 GBP
View
Most Expensive
B
With Clarity
818678241 · Oct 31
$3,821 SGD
$2,989 USD
View
14 more retailers have this diamond
Prices start from $786 SGDSave up to $3,035 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
$786 SGD