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Round|Lab Grown|IGI

1.21ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG754510328

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510328

Diamond specifications and retailer prices

From $225 CAD
$161 USD
As of October 26, 2026
Save $1,084 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,309 CAD at MOH London · As of October 26, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG754510328 or 754510328. Listed at 14 retailers as of October 26, 2026, with prices from $225 to $1,309, a $1,084 spread on the same certified stone. MOH London lists it at $1,309. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510328
Dimensions6.79 × 6.75 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.79 mm6.75 mm1.21 ctH / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG754510328
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $1,309 CAD|Low: $225 CAD|High: $1,323 CAD|Avg: $740 CAD
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
Retailer 15
October 26, 2026
Retailer 8$225 CAD
Retailer 13$264 CAD
Retailer 3$282 CAD
Retailer 11$282 CAD
Retailer 14$478 CAD
Retailer 10$506 CAD
Retailer 12$524 CAD
Retailer 6$557 CAD
Retailer 2$629 CAD
Retailer 5$852 CAD
Retailer 4$909 CAD
Retailer 15$960 CAD
Retailer 9$975 CAD
Retailer 7$1,245 CAD
MOH London$1,309 CAD

26 data points across 15 retailers

14 retailers$225 CAD to $1,309 CAD

A
Cheapest Retailer
-
$225 CAD
$161 USD
Retailer 2
-
$264 CAD
$189 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$282 CAD
$202 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$282 CAD
$202 USD
View
Retailer 5
-
$478 CAD
ZAR 5,527 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$506 CAD
$362 USD
View
A
Retailer 7
-
$524 CAD
€357 EUR
View
B+
Retailer 8
-
$557 CAD
$399 USD
View
B+
Retailer 9
-
$629 CAD
$450 USD
View
B
Retailer 10
-
$852 CAD
$610 USD
View
Retailer 11
-
$909 CAD
$651 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$960 CAD
$687 USD
View
B
Retailer 13
-
$975 CAD
$698 USD
View
Most Expensive
B
MOH London
LG754510328 · Oct 26
$1,309 CAD
£738 GBP
View
13 more retailers have this diamond
Prices start from $225 CADSave up to $1,084 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
$225 CAD