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Round|Lab Grown|IGI

1.21ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG772660992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772660992

Diamond specifications and retailer prices

From $210 SGD
$164 USD
As of October 29, 2026
Save $1,013 SGD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,223 SGD at MOH London · As of October 29, 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 LG772660992 or 772660992. Listed at 15 retailers as of October 29, 2026, with prices from $210 to $1,223, a $1,013 spread on the same certified stone. MOH London lists it at $1,223. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772660992
Dimensions6.81 × 6.70 × 4.20 mm
L/W Ratio1.02
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
6.81 mm6.70 mm1.21 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772660992
Side View
Table 61.0%Crown 37.4°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 62.2%

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 29
Current: $1,223 SGD|Low: $202 SGD|High: $1,231 SGD|Avg: $537 SGD|-0.4%
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 12$210 SGD
Retailer 13$235 SGD
Retailer 6$256 SGD
Retailer 5$260 SGD
Retailer 2$447 SGD
Retailer 9$458 SGD
Retailer 3$468 SGD
Retailer 10$575 SGD
Retailer 14$579 SGD
Retailer 4$583 SGD
Retailer 8$603 SGD
Retailer 11$667 SGD
Retailer 7$716 SGD
MOH London$1,223 SGD

34 data points across 14 retailers

15 retailers$210 SGD to $1,223 SGD

A
Cheapest Retailer
-
$210 SGD
$164 USD
A
Retailer 2
-
$235 SGD
$184 USD
View
Final sale: no returns
Retailer 3
-
$256 SGD
$200 USD
View
Price last confirmed 46 days ago
A
Retailer 4
-
$260 SGD
$203 USD
View
A
Retailer 5
-
$447 SGD
€333 EUR
View
B+
Retailer 6
-
$458 SGD
£282 GBP
View
B+
Retailer 7
-
$468 SGD
$366 USD
View
Retailer 8
-
$575 SGD
$450 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$579 SGD
$453 USD
View
B+
Retailer 10
-
$583 SGD
$456 USD
View
B+
Retailer 11
-
$603 SGD
£371 GBP
View
Retailer 12
-
$617 SGD
$483 USD
View
Price last confirmed 82 days ago
B
Retailer 13
-
$667 SGD
$522 USD
View
B+
Retailer 14
-
$716 SGD
$560 USD
View
Most Expensive
B
MOH London
LG772660992 · Oct 29
$1,223 SGD
£753 GBP
View
14 more retailers have this diamond
Prices start from $210 SGDSave up to $1,013 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
$210 SGD