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Heart|Lab Grown|IGI

1.21ct E VVS1 Heart Lab Grown Diamond

VG • E/VVS1 • IGI LG843601702

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843601702

Diamond specifications and retailer prices

From $362 USD
As of November 1, 2026
Save $712 USD (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,074 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG843601702 or 843601702. Listed at 5 retailers as of November 1, 2026, with prices from $362 to $1,074, a $712 spread on the same certified stone. MOH London lists it at $1,074. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
E
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843601702
Dimensions6.40 × 7.28 × 4.43 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.40 mm7.28 mm1.21 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843601702
Side View
Table 64.0%Crown 34.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $1,074 USD|Low: $362 USD|High: $1,133 USD|Avg: $681 USD|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3$362 USD
Retailer 2$493 USD
Retailer 4$561 USD
Retailer 5$915 USD
MOH London$1,074 USD

27 data points across 5 retailers

5 retailers$362 USD to $1,074 USD

B+
Cheapest Retailer
-
$362 USD
B+
Retailer 2
-
$493 USD
£388 GBP
View
B+
Retailer 3
-
$561 USD
View
B
Retailer 4
-
$915 USD
View
Most Expensive
B
MOH London
LG843601702 · Nov 1
$1,074 USD
£846 GBP
View
4 more retailers have this diamond
Prices start from $362 USDSave up to $712 USD

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
$362 USD