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Heart|Lab Grown|IGI

1.51ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG754567521

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG754567521

Diamond specifications and retailer prices

From $348 SGD
As of November 4, 2026
Save $1,310 SGD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,728 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG754567521 or 754567521. Listed at 18 retailers as of November 4, 2026, with a 377% 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
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754567521
Dimensions7.22 × 7.71 × 4.48 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.22 mm7.71 mm1.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754567521
Side View
Table 62.0%Crown 34.9°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 58.1%

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: $1,728 SGD|Low: $328 SGD|High: $1,737 SGD|Avg: $898 SGD|+0.8%
MOH London
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
November 5, 2026
Retailer 5$341 SGD
Retailer 7$382 SGD
Retailer 6$424 SGD
Retailer 15$431 SGD
Retailer 17$581 SGD
Retailer 14$633 SGD
Retailer 16$638 SGD
Retailer 13$695 SGD
Retailer 12$742 SGD
Retailer 2$745 SGD
Retailer 8$855 SGD
Retailer 10$1,010 SGD
Retailer 11$1,109 SGD
Retailer 3$1,449 SGD
Retailer 4$1,657 SGD
Retailer 9$1,725 SGD
MOH London$1,728 SGD

35 data points across 17 retailers

18 retailers$348 SGD to $1,657 SGD

Retailer 1
-
$341 SGD
Price last confirmed 28 days ago
A
Retailer 2
-
$348 SGD
View
Retailer 3
-
$396 SGD
View
Price last confirmed 37 days ago
Retailer 4
-
$424 SGD
View
Price last confirmed 33 days ago
Retailer 5
-
$431 SGD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$581 SGD
View
A
Retailer 7
-
$633 SGD
View
A
Retailer 8
-
$638 SGD
View
B+
Retailer 9
-
$695 SGD
View
B+
Retailer 10
-
$742 SGD
View
A
Retailer 11
-
$745 SGD
View
B+
Retailer 12
-
$1,010 SGD
View
B+
Retailer 13
-
$1,109 SGD
View
Retailer 14
-
$1,362 SGD
View
Price last confirmed 36 days ago
Retailer 15
-
$1,367 SGD
View
Price last confirmed 26 days ago
B
Retailer 16
-
$1,449 SGD
View
B
Retailer 17
-
$1,657 SGD
View
Most Expensive
MOH London
LG754567521 · Oct 26
$1,728 SGD
£1,065 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $348 SGDSave up to $1,310 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 Heart
$348 SGD