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Round|Lab Grown|IGI

1.21ct E VS1 Round Lab Grown Diamond

ID • E/VS1 • IGI LG720540135

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720540135

Diamond specifications and retailer prices

From $241 CAD
$172 USD
As of October 29, 2026
Save $1,306 CAD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,915 CAD at Queensmith · As of October 27, 2026
View at Queensmith

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720540135 or 720540135. Listed at 22 retailers as of October 28, 2026, with a 543% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540135
Dimensions6.91 × 6.95 × 4.15 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
6.91 mm6.95 mm1.21 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540135
Side View
Table 56.0%Crown 33.2°Girdle: MediumPavilion 40.1°Culet: NoneDepth 59.9%

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 29
Current: $532 CAD|Low: $231 CAD|High: $1,580 CAD|Avg: $662 CAD|-8.5%
Retailer 1
Retailer 2
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Retailer 21
October 29, 2026
Retailer 20$241 CAD
Retailer 4$269 CAD
Retailer 13$280 CAD
Retailer 5$300 CAD
Retailer 6$300 CAD
Retailer 21$340 CAD
Retailer 8$406 CAD
Retailer 12$502 CAD
Retailer 17$514 CAD
Retailer 1$532 CAD
Retailer 2$546 CAD
Retailer 16$558 CAD
Retailer 7$647 CAD
Retailer 18$707 CAD
Retailer 19$749 CAD
Retailer 10$962 CAD
Retailer 14$985 CAD
Retailer 11$987 CAD
Retailer 3$1,038 CAD
Retailer 15$1,406 CAD
Retailer 9$1,547 CAD

33 data points across 21 retailers

22 retailers$241 CAD to $1,547 CAD

A
Cheapest Retailer
-
$241 CAD
$172 USD
A
Retailer 2
-
$269 CAD
$192 USD
View
Final sale: no returns
A
Retailer 3
-
$280 CAD
$200 USD
View
A
Retailer 4
-
$300 CAD
$214 USD
View
A
Retailer 5
-
$300 CAD
$214 USD
View
A
Retailer 6
-
$340 CAD
HK$1,900 HKD
View
B+
Retailer 7
-
$406 CAD
$290 USD
View
A
Retailer 8
-
$502 CAD
£283 GBP
View
A
Retailer 9
-
$514 CAD
ZAR 5,928 ZAR
View
A
Retailer 10
-
$532 CAD
£299 GBP
View
A
Retailer 11
-
$546 CAD
$390 USD
View
A
Retailer 12
-
$558 CAD
€380 EUR
View
B+
Retailer 13
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$647 CAD
$462 USD
View
B+
Retailer 14
-
$707 CAD
$505 USD
View
Price last confirmed 11 days ago
B+
Retailer 15
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$749 CAD
$535 USD
View
B+
Retailer 16
-
$962 CAD
$687 USD
View
B
Retailer 17
-
$985 CAD
SGD 951 SGD
View
B
Retailer 18
-
$987 CAD
$705 USD
View
B
Retailer 19
-
$1,038 CAD
$742 USD
View
B
Retailer 20
-
$1,406 CAD
£791 GBP
View
B
Retailer 21
-
$1,547 CAD
$1,105 USD
View
Most Expensive
B
Queensmith
LG720540135 · Oct 27
$2,915 CAD
£1,640 GBP
View
Price under review
21 more retailers have this diamond
Prices start from $241 CADSave up to $1,306 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
$241 CAD