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Heart|Lab Grown|IGI

1.21ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG674510241

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG674510241

Diamond specifications and retailer prices

From $409 SGD
$320 USD
As of October 30, 2026
Save $1,005 SGD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,414 SGD at MOH London · As of October 26, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG674510241 or 674510241. Listed at 11 retailers as of October 26, 2026, with prices from $409 to $1,414, a $1,005 spread on the same certified stone. MOH London lists it at $1,414. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674510241
Dimensions6.89 × 6.89 × 4.38 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
6.89 mm6.89 mm1.21 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674510241
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.8%

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 30
Current: $1,414 SGD|Low: $409 SGD|High: $1,484 SGD|Avg: $806 SGD|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 7$409 SGD
Retailer 11$425 SGD
Retailer 2$550 SGD
Retailer 8$556 SGD
Retailer 5$579 SGD
Retailer 3$722 SGD
Retailer 4$725 SGD
Retailer 6$923 SGD
Retailer 10$1,016 SGD
Retailer 9$1,040 SGD
MOH London$1,414 SGD

43 data points across 11 retailers

11 retailers$409 SGD to $1,414 SGD

B+
Cheapest Retailer
-
$409 SGD
$320 USD
A
Retailer 2
-
$425 SGD
HK$2,600 HKD
View
A
Retailer 3
-
$550 SGD
£339 GBP
View
A
Retailer 4
-
$556 SGD
$435 USD
View
B+
Retailer 5
-
$579 SGD
€431 EUR
View
B+
Retailer 6
-
$725 SGD
$567 USD
View
B+
Retailer 7
-
$923 SGD
A$1,111 AUD
View
B
Retailer 8
-
$1,016 SGD
$795 USD
View
B
Retailer 9
-
$1,040 SGD
$814 USD
View
B
Retailer 10
-
$1,160 SGD
CA$1,260 CAD
View
Most Expensive
B
MOH London
LG674510241 · Oct 26
$1,414 SGD
£871 GBP
View
10 more retailers have this diamond
Prices start from $409 SGDSave up to $1,005 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
$409 SGD