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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG669468191

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG669468191

Diamond specifications and retailer prices

From $920 SGD
As of November 4, 2026
Save $3,098 SGD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,623 SGD at Brilliant Earth · As of October 16, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG669468191 or 669468191. Listed at 17 retailers as of November 3, 2026, with a 337% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669468191
Dimensions7.98 × 5.85 × 4.05 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.98 mm5.85 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG669468191
Side View
Table 67.0%Crown 32.4°Girdle: THK-VTKPavilion 40°Culet: NoneDepth 69.2%

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: Nov 4
Current: $5,623 SGD|Low: $920 SGD|High: $5,623 SGD|Avg: $2,359 SGD
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
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 6$920 SGD
Retailer 16$953 SGD
Retailer 4$1,149 SGD
Retailer 9$1,182 SGD
Retailer 15$1,463 SGD
Retailer 2$1,508 SGD
Retailer 13$1,581 SGD
Retailer 11$1,752 SGD
Retailer 10$2,316 SGD
Retailer 5$2,960 SGD
Retailer 8$3,291 SGD
Retailer 3$3,305 SGD
Retailer 7$3,333 SGD
Retailer 14$3,501 SGD
Retailer 12$4,018 SGD
Brilliant Earth$5,623 SGD

45 data points across 16 retailers

17 retailers$920 SGD to $4,018 SGD

A
Cheapest Retailer
-
$920 SGD
Final sale: no returns
Retailer 2
-
$953 SGD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$1,149 SGD
View
A
Retailer 4
-
$1,182 SGD
View
A
Retailer 5
-
$1,463 SGD
View
A
Retailer 6
-
$1,508 SGD
View
A
Retailer 7
-
$1,581 SGD
View
A
Retailer 8
-
$1,752 SGD
View
B+
Retailer 9
-
$2,316 SGD
View
B+
Retailer 10
-
$2,960 SGD
View
B
Retailer 11
-
$3,291 SGD
View
B+
Retailer 12
-
$3,305 SGD
View
B
Retailer 13
-
$3,333 SGD
View
Retailer 14
-
$3,501 SGD
View
Price last confirmed 17 days ago
B
Retailer 15
-
$3,637 SGD
View
B
Retailer 16
-
$4,018 SGD
View
Most Expensive
Brilliant Earth
14065763A · Oct 16
$5,623 SGD
$4,400 USD
View
Price last confirmed 19 days ago
16 more retailers have this diamond
Prices start from $920 SGDSave up to $3,098 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
$920 SGD