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Cushion|Lab Grown|IGI

1.51ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG789604663

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

Certificate IGI LG789604663

Diamond specifications and retailer prices

From $350 SGD
$273 USD
As of October 28, 2026
Save $1,364 SGD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,757 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG789604663 or 789604663. Listed at 18 retailers as of October 28, 2026, with a 390% 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789604663
Dimensions6.60 × 6.51 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.60 mm6.51 mm1.51 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789604663
Side View
Table 61.0%Crown 33.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 67.0%

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 28
Current: $2,757 SGD|Low: $350 SGD|High: $2,757 SGD|Avg: $929 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
Retailer 17
Retailer 18
October 29, 2026
Retailer 3$350 SGD
Retailer 10$397 SGD
Retailer 16$436 SGD
Retailer 5$526 SGD
Retailer 2$641 SGD
Retailer 12$669 SGD
Retailer 17$674 SGD
Retailer 7$680 SGD
Retailer 11$734 SGD
Retailer 18$806 SGD
Retailer 13$908 SGD
Retailer 15$978 SGD
Retailer 6$1,260 SGD
Retailer 9$1,318 SGD
Retailer 8$1,532 SGD
Retailer 14$1,562 SGD
Retailer 4$1,714 SGD
Brilliant Earth$2,757 SGD

41 data points across 18 retailers

18 retailers$350 SGD to $1,714 SGD

A
Cheapest Retailer
-
$350 SGD
$273 USD
Final sale: no returns
A
Retailer 2
-
$397 SGD
$310 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$436 SGD
£268 GBP
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$526 SGD
$410 USD
View
A
Retailer 5
-
$641 SGD
€476 EUR
View
A
Retailer 6
-
$669 SGD
ZAR 8,427 ZAR
View
A
Retailer 7
-
$674 SGD
$526 USD
View
A
Retailer 8
-
$734 SGD
£451 GBP
View
B+
Retailer 9
-
$806 SGD
$629 USD
View
B+
Retailer 10
-
$908 SGD
A$1,089 AUD
View
B+
Retailer 11
-
$978 SGD
$763 USD
View
B+
Retailer 12
-
$1,260 SGD
View
B
Retailer 13
-
$1,318 SGD
$1,028 USD
View
B
Retailer 14
-
$1,424 SGD
$1,111 USD
View
Price last confirmed 50 days ago
B
Retailer 15
-
$1,532 SGD
$1,195 USD
View
B
Retailer 16
-
$1,562 SGD
£959 GBP
View
B
Retailer 17
-
$1,714 SGD
$1,337 USD
View
Most Expensive
B
Brilliant Earth
19001927A · Oct 16
$2,757 SGD
$2,150 USD
View
Price last confirmed 12 days ago
17 more retailers have this diamond
Prices start from $350 SGDSave up to $1,364 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
$350 SGD