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Heart|Lab Grown|IGI

1.21ct F VS1 Heart Lab Grown Diamond

EX • F/VS1 • IGI LG607340663

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG607340663

Diamond specifications and retailer prices

From $505 SGD
As of November 4, 2026
Save $822 SGD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,327 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG607340663 or 607340663. Listed at 7 retailers as of November 4, 2026, with prices from $505 to $1,327, a $822 spread on the same certified stone. MOH London lists it at $1,327. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607340663
Dimensions6.37 × 7.51 × 4.41 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.37 mm7.51 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607340663
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 58.7%

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: $1,327 SGD|Low: $475 SGD|High: $1,366 SGD|Avg: $748 SGD|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 6$505 SGD
Retailer 2$507 SGD
Retailer 3$553 SGD
Retailer 5$600 SGD
Retailer 4$984 SGD
MOH London$1,327 SGD

43 data points across 6 retailers

7 retailers$505 SGD to $1,327 SGD

A
Cheapest Retailer
-
$505 SGD
A
Retailer 2
-
$507 SGD
View
B+
Retailer 3
-
$553 SGD
View
B+
Retailer 4
-
$600 SGD
View
B
Retailer 5
-
$857 SGD
View
B
Retailer 6
-
$984 SGD
View
Most Expensive
B
MOH London
LG607340663 · Nov 5
$1,327 SGD
£818 GBP
View
6 more retailers have this diamond
Prices start from $505 SGDSave up to $822 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
1.21ct Heart
$505 SGD