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Cushion|Lab Grown|IGI

1.51ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG649405817

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

Certificate IGI LG649405817

Diamond specifications and retailer prices

From $450 SGD
$352 USD
As of November 1, 2026
Save $1,204 SGD (73%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,654 SGD at MOH London · As of November 1, 2026
View at MOH London

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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG649405817 or 649405817. Listed at 8 retailers as of November 1, 2026, with prices from $450 to $1,654, a $1,204 spread on the same certified stone. MOH London lists it at $1,654. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649405817
Dimensions6.56 × 6.53 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.56 mm6.53 mm1.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649405817
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 68.5%

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: Nov 1
Current: $1,654 SGD|Low: $449 SGD|High: $1,676 SGD|Avg: $1,006 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2$450 SGD
Retailer 4$633 SGD
Retailer 5$695 SGD
Retailer 3$1,010 SGD
Retailer 7$1,049 SGD
Retailer 6$1,544 SGD
MOH London$1,654 SGD

15 data points across 7 retailers

8 retailers$450 SGD to $1,654 SGD

A
Cheapest Retailer
-
$450 SGD
$352 USD
A
Retailer 2
-
$633 SGD
$495 USD
View
A
Retailer 3
-
$695 SGD
$544 USD
View
B+
Retailer 4
-
$1,010 SGD
$790 USD
View
Retailer 5
-
$1,023 SGD
$800 USD
View
Price last confirmed 84 days ago
Retailer 6
-
$1,036 SGD
$810 USD
View
Price last confirmed 28 days ago
B
Retailer 7
-
$1,544 SGD
$1,207 USD
View
Most Expensive
B
MOH London
LG649405817 · Nov 1
$1,654 SGD
£1,019 GBP
View
7 more retailers have this diamond
Prices start from $450 SGDSave up to $1,204 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
$450 SGD