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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 $229 CAD
$164 USD
As of October 29, 2026
Save $1,107 CAD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,336 CAD 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 $229 to $1,336, a $1,107 spread on the same certified stone. MOH London lists it at $1,336. 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
Color
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

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 29
Current: $1,336 CAD|Low: $221 CAD|High: $1,345 CAD|Avg: $588 CAD|-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 30, 2026
Retailer 12$229 CAD
Retailer 13$257 CAD
Retailer 6$279 CAD
Retailer 5$284 CAD
Retailer 9$490 CAD
Retailer 8$501 CAD
Retailer 3$511 CAD
Retailer 10$629 CAD
Retailer 14$633 CAD
Retailer 4$637 CAD
Retailer 7$658 CAD
Retailer 11$729 CAD
Retailer 2$782 CAD
MOH London$1,336 CAD

33 data points across 14 retailers

15 retailers$229 CAD to $1,336 CAD

A
Cheapest Retailer
-
$229 CAD
$164 USD
A
Retailer 2
-
$257 CAD
$184 USD
View
Final sale: no returns
Retailer 3
-
$279 CAD
$200 USD
View
Price last confirmed 45 days ago
A
Retailer 4
-
$284 CAD
$203 USD
View
A
Retailer 5
-
$490 CAD
€334 EUR
View
B+
Retailer 6
-
$501 CAD
£282 GBP
View
B+
Retailer 7
-
$511 CAD
$366 USD
View
Retailer 8
-
$629 CAD
$450 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$633 CAD
$453 USD
View
B+
Retailer 10
-
$637 CAD
$456 USD
View
B+
Retailer 11
-
$658 CAD
£371 GBP
View
Retailer 12
-
$674 CAD
$483 USD
View
Price last confirmed 82 days ago
B
Retailer 13
-
$729 CAD
$522 USD
View
B+
Retailer 14
-
$782 CAD
$560 USD
View
Most Expensive
B
MOH London
LG772660992 · Oct 29
$1,336 CAD
£753 GBP
View
14 more retailers have this diamond
Prices start from $229 CADSave up to $1,107 CAD

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
$229 CAD