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Heart|Lab Grown|IGI

1.21ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG674510241

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG674510241

Diamond specifications and retailer prices

From €286 EUR
$320 USD
As of October 30, 2026
Save €704 EUR (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €990 EUR at MOH London · As of October 26, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG674510241 or 674510241. Listed at 11 retailers as of October 26, 2026, with prices from €286 to €990, a €704 spread on the same certified stone. MOH London lists it at €990. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674510241
Dimensions6.89 × 6.89 × 4.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.89 mm6.89 mm1.21 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674510241
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.8%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €990 EUR|Low: €286 EUR|High: €1,039 EUR|Avg: €565 EUR|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 7€286 EUR
Retailer 11€298 EUR
Retailer 4€385 EUR
Retailer 8€389 EUR
Retailer 2€402 EUR
Retailer 3€506 EUR
Retailer 5€508 EUR
Retailer 6€646 EUR
Retailer 10€712 EUR
Retailer 9€728 EUR
MOH London€990 EUR

42 data points across 11 retailers

11 retailers€286 EUR to €990 EUR

B+
Cheapest Retailer
-
€286 EUR
$320 USD
A
Retailer 2
-
€298 EUR
HK$2,600 HKD
View
A
Retailer 3
-
€385 EUR
£339 GBP
View
A
Retailer 4
-
€389 EUR
$435 USD
View
B+
Retailer 5
-
€402 EUR
View
B+
Retailer 6
-
€508 EUR
$567 USD
View
B+
Retailer 7
-
€646 EUR
A$1,111 AUD
View
B
Retailer 8
-
€712 EUR
$795 USD
View
B
Retailer 9
-
€728 EUR
$814 USD
View
B
Retailer 10
-
€812 EUR
CA$1,260 CAD
View
Most Expensive
B
MOH London
LG674510241 · Oct 26
€990 EUR
£871 GBP
View
10 more retailers have this diamond
Prices start from €286 EURSave up to €704 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.

A
1.21ct Heart
€286 EUR