CaratHunter
Plans
Heart|Lab Grown|IGI

1.21ct F VS1 Heart Lab Grown Diamond

ID • F/VS1 • IGI LG673419604

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG673419604

Diamond specifications and retailer prices

From $751 CAD
As of November 4, 2026
Save $378 CAD (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,129 CAD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG673419604 or 673419604. Listed at 2 retailers as of November 4, 2026, with prices from $751 to $1,129, a $378 spread on the same certified stone. Brilliant Earth lists it at $1,129. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673419604
Dimensions6.58 × 7.30 × 4.38 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm7.30 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673419604
Side View
Table 60.0%Crown 35.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,129 CAD|Low: $353 CAD|High: $3,038 CAD|Avg: $1,125 CAD|-40.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
September 23, 2026
Retailer 6$354 CAD
Retailer 8$418 CAD
Retailer 4$499 CAD
Retailer 13$622 CAD
Retailer 9$661 CAD
Retailer 2$751 CAD
Retailer 7$843 CAD
Retailer 12$984 CAD
Brilliant Earth$1,129 CAD
Retailer 3$1,389 CAD
Retailer 11$1,451 CAD
Retailer 10$1,646 CAD
Retailer 5$2,815 CAD

39 data points across 13 retailers

2 retailers$751 CAD to $1,129 CAD

B+
Cheapest Retailer
-
$751 CAD
Most Expensive
B
Brilliant Earth
15257862Y · Nov 4
$1,129 CAD
$810 USD
View
1 more retailer has this diamond
Prices start from $751 CADSave up to $378 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.

B+
1.21ct Heart
$751 CAD