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Cushion|Lab Grown|IGI

1.51ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG830643286

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830643286

Diamond specifications and retailer prices

From $372 SGD
£229 GBP
As of October 27, 2026
Save $1,290 SGD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,662 SGD at Brilliant Earth · As of October 31, 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 LG830643286 or 830643286. Listed at 19 retailers as of October 27, 2026, with prices from $372 to $1,662, a $1,290 spread on the same certified stone. Brilliant Earth lists it at $1,662. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830643286
Dimensions7.70 × 5.91 × 3.81 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.70 mm5.91 mm1.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830643286
Side View
Table 62.0%Crown 34°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 64.5%

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 27
Current: $1,662 SGD|Low: $300 SGD|High: $2,160 SGD|Avg: $931 SGD|-23.1%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
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Retailer 11
Retailer 12
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Retailer 20
October 31, 2026
Retailer 10$300 SGD
Retailer 16$372 SGD
Retailer 11$376 SGD
Retailer 2$537 SGD
Retailer 20$564 SGD
Retailer 4$573 SGD
Retailer 18$612 SGD
Retailer 6$657 SGD
Retailer 8$660 SGD
Retailer 17$779 SGD
Retailer 13$854 SGD
Retailer 15$1,070 SGD
Retailer 9$1,140 SGD
Retailer 12$1,298 SGD
Retailer 14$1,322 SGD
Retailer 19$1,338 SGD
Retailer 7$1,359 SGD
Retailer 3$1,393 SGD
Retailer 5$1,568 SGD
Brilliant Earth$1,662 SGD

32 data points across 20 retailers

19 retailers$372 SGD to $1,662 SGD

A
Cheapest Retailer
-
$372 SGD
£229 GBP
A
Retailer 2
-
$376 SGD
HK$2,300 HKD
View
A
Retailer 3
-
$537 SGD
€400 EUR
View
Retailer 4
-
$564 SGD
ZAR 7,127 ZAR
View
Price last confirmed 9 days ago
Retailer 5
-
$573 SGD
$448 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$612 SGD
£377 GBP
View
A
Retailer 7
-
$657 SGD
$514 USD
View
A
Retailer 8
-
$660 SGD
$516 USD
View
A
Retailer 9
-
$779 SGD
A$937 AUD
View
B+
Retailer 10
-
$854 SGD
$668 USD
View
B+
Retailer 11
-
$1,070 SGD
View
B+
Retailer 12
-
$1,140 SGD
$892 USD
View
Retailer 13
-
$1,298 SGD
A$1,562 AUD
View
Price last confirmed 32 days ago
B
Retailer 14
-
$1,322 SGD
$1,034 USD
View
Retailer 15
-
$1,338 SGD
£824 GBP
View
Price last confirmed 7 days ago
B
Retailer 16
-
$1,359 SGD
$1,063 USD
View
Retailer 17
-
$1,393 SGD
$1,090 USD
View
Price last confirmed 11 days ago
Retailer 18
-
$1,568 SGD
$1,227 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
21274481A · Oct 31
$1,662 SGD
$1,300 USD
View
18 more retailers have this diamond
Prices start from $372 SGDSave up to $1,290 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
$372 SGD