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Heart|Lab Grown|IGI

1.21ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG831628400

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831628400

Diamond specifications and retailer prices

From $265 SGD
$207 USD
As of October 30, 2026
Save $1,115 SGD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,380 SGD at MOH London · As of October 29, 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 LG831628400 or 831628400. Listed at 18 retailers as of October 29, 2026, with prices from $265 to $1,380, a $1,115 spread on the same certified stone. MOH London lists it at $1,380. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831628400
Dimensions7.09 × 7.34 × 4.05 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.09 mm7.34 mm1.21 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831628400
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 55.2%

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 30
Current: $1,380 SGD|Low: $228 SGD|High: $1,388 SGD|Avg: $608 SGD|-0.6%
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
October 31, 2026
Retailer 3$237 SGD
Retailer 4$294 SGD
Retailer 5$294 SGD
Retailer 13$369 SGD
Retailer 7$499 SGD
Retailer 8$504 SGD
Retailer 11$516 SGD
Retailer 2$531 SGD
Retailer 12$552 SGD
Retailer 6$704 SGD
Retailer 10$716 SGD
Retailer 9$923 SGD
Retailer 14$996 SGD
MOH London$1,380 SGD

39 data points across 14 retailers

18 retailers$265 SGD to $1,380 SGD

Retailer 1
-
$237 SGD
$185 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$265 SGD
$207 USD
View
Final sale: no returns
Retailer 3
-
$275 SGD
$215 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$294 SGD
$230 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$294 SGD
$230 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$369 SGD
£228 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
$499 SGD
€372 EUR
View
A
Retailer 8
-
$504 SGD
ZAR 6,368 ZAR
View
A
Retailer 9
-
$516 SGD
$404 USD
View
A
Retailer 10
-
$531 SGD
£327 GBP
View
A
Retailer 11
-
$552 SGD
$432 USD
View
B+
Retailer 12
-
$704 SGD
$551 USD
View
B+
Retailer 13
-
$716 SGD
A$862 AUD
View
B+
Retailer 14
-
$923 SGD
A$1,111 AUD
View
Retailer 15
-
$943 SGD
$738 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$996 SGD
$779 USD
View
B
Retailer 17
-
$1,012 SGD
$792 USD
View
Most Expensive
B
MOH London
LG831628400 · Oct 29
$1,380 SGD
£850 GBP
View
17 more retailers have this diamond
Prices start from $265 SGDSave up to $1,115 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
$265 SGD