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Round|Lab Grown|IGI

1.21ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG766645929

Shape and cutting style on the report: Round brilliant

Certificate IGI LG766645929

Diamond specifications and retailer prices

From $207 SGD
As of November 1, 2026
Save $995 SGD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,202 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG766645929 or 766645929. Listed at 15 retailers as of November 1, 2026, with prices from $207 to $1,202, a $995 spread on the same certified stone. MOH London lists it at $1,202. 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

1.21
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766645929
Dimensions6.89 × 6.85 × 4.14 mm
L/W Ratio1.01
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
6.89 mm6.85 mm1.21 ctE / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766645929
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.1°Culet: NoneDepth 60.3%

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 1
Current: $1,202 SGD|Low: $199 SGD|High: $1,236 SGD|Avg: $536 SGD|-2.8%
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
November 4, 2026
Retailer 12$207 SGD
Retailer 13$232 SGD
Retailer 6$253 SGD
Retailer 5$257 SGD
Retailer 7$443 SGD
Retailer 10$448 SGD
Retailer 3$465 SGD
Retailer 2$543 SGD
Retailer 14$576 SGD
Retailer 4$582 SGD
Retailer 9$593 SGD
Retailer 8$667 SGD
Retailer 11$715 SGD
MOH London$1,202 SGD

36 data points across 14 retailers

15 retailers$207 SGD to $1,202 SGD

A
Cheapest Retailer
-
$207 SGD
A
Retailer 2
-
$232 SGD
View
Final sale: no returns
Retailer 3
-
$253 SGD
View
Price last confirmed 52 days ago
Retailer 4
-
$257 SGD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$443 SGD
View
A
Retailer 6
-
$448 SGD
View
B+
Retailer 7
-
$465 SGD
View
B+
Retailer 8
-
$536 SGD
View
B+
Retailer 9
-
$543 SGD
View
B+
Retailer 10
-
$576 SGD
View
B+
Retailer 11
-
$582 SGD
View
B+
Retailer 12
-
$593 SGD
View
B
Retailer 13
-
$667 SGD
View
B+
Retailer 14
-
$715 SGD
View
Most Expensive
B
MOH London
LG766645929 · Nov 2
$1,202 SGD
£741 GBP
View
14 more retailers have this diamond
Prices start from $207 SGDSave up to $995 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 Round
$207 SGD