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Heart|Lab Grown|IGI

1.09ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG831648646

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831648646

Diamond specifications and retailer prices

From $217 SGD
As of November 6, 2026
Save $906 SGD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,123 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831648646 or 831648646. Listed at 16 retailers as of November 4, 2026, with prices from $217 to $1,123, a $906 spread on the same certified stone. MOH London lists it at $1,123. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648646
Dimensions7.27 × 6.68 × 4.04 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.27 mm6.68 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831648646
Side View
Table 64.0%Crown 35.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 55.6%

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 6
Current: $1,123 SGD|Low: $217 SGD|High: $1,230 SGD|Avg: $583 SGD|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$217 SGD
Retailer 2$310 SGD
Retailer 9$408 SGD
Retailer 4$413 SGD
Retailer 3$436 SGD
Retailer 7$441 SGD
Retailer 6$456 SGD
Retailer 8$628 SGD
Retailer 10$664 SGD
Retailer 11$782 SGD
MOH London$1,123 SGD

42 data points across 11 retailers

16 retailers$217 SGD to $1,123 SGD

Retailer 1
-
$196 SGD
Price last confirmed 20 days ago
A
Retailer 2
-
$217 SGD
View
Final sale: no returns
Retailer 3
-
$228 SGD
View
Price last confirmed 22 days ago
Retailer 4
-
$244 SGD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$278 SGD
View
A
Retailer 6
-
$310 SGD
View
B+
Retailer 7
-
$408 SGD
View
B+
Retailer 8
-
$413 SGD
View
Retailer 9
-
$436 SGD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
$441 SGD
View
B+
Retailer 11
-
$456 SGD
View
B
Retailer 12
-
$628 SGD
View
B
Retailer 13
-
$664 SGD
View
B
Retailer 14
-
$782 SGD
View
Retailer 15
-
$782 SGD
View
Price last confirmed 21 days ago
Most Expensive
B
MOH London
LG831648646 · Nov 4
$1,123 SGD
£690 GBP
View
15 more retailers have this diamond
Prices start from $217 SGDSave up to $906 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
1.09ct Heart
$217 SGD