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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 €323 EUR
$362 USD
As of November 1, 2026
Save €635 EUR (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €958 EUR 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 €323 to €958, a €635 spread on the same certified stone. MOH London lists it at €958. 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
Colour
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €958 EUR|Low: €323 EUR|High: €1,010 EUR|Avg: €607 EUR|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 3€323 EUR
Retailer 2€443 EUR
Retailer 4€500 EUR
Retailer 5€815 EUR
MOH London€958 EUR

28 data points across 5 retailers

5 retailers€323 EUR to €958 EUR

B+
Cheapest Retailer
-
€323 EUR
$362 USD
B+
Retailer 2
-
€443 EUR
£391 GBP
View
B+
Retailer 3
-
€500 EUR
$561 USD
View
B
Retailer 4
-
€815 EUR
$915 USD
View
Most Expensive
B
MOH London
LG843601702 · Nov 1
€958 EUR
£846 GBP
View
4 more retailers have this diamond
Prices start from €323 EURSave up to €635 EUR

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
€323 EUR