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Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG840634566

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840634566

Diamond specifications and retailer prices

From €187 EUR
$210 USD
As of November 2, 2026
Save €767 EUR (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €954 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840634566 or 840634566. Listed at 19 retailers as of November 2, 2026, with prices from €187 to €954, a €767 spread on the same certified stone. Brilliant Earth lists it at €954. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634566
Dimensions6.73 × 7.32 × 4.20 mm
L/W Ratio1.09
Girdle conditionFaceted
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
6.73 mm7.32 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634566
Side View
Table 61.0%Crown 38.2°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 57.4%

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: Nov 2
Current: €954 EUR|Low: €187 EUR|High: €962 EUR|Avg: €525 EUR
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 11€187 EUR
Retailer 5€210 EUR
Retailer 4€218 EUR
Retailer 9€233 EUR
Retailer 18€233 EUR
Retailer 13€285 EUR
Retailer 17€391 EUR
Retailer 15€402 EUR
Retailer 14€426 EUR
Retailer 19€450 EUR
Retailer 3€512 EUR
Retailer 12€569 EUR
Retailer 2€606 EUR
Retailer 8€748 EUR
Retailer 7€757 EUR
Retailer 10€794 EUR
Retailer 6€795 EUR
Retailer 16€932 EUR
Brilliant Earth€954 EUR

18 data points across 19 retailers

19 retailers€187 EUR to €954 EUR

A
Cheapest Retailer
-
€187 EUR
$210 USD
A
Retailer 2
-
€210 EUR
$236 USD
View
Final sale: no returns
A
Retailer 3
-
€218 EUR
$244 USD
View
Retailer 4
-
€233 EUR
$261 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€233 EUR
$261 USD
View
A
Retailer 6
-
€285 EUR
£252 GBP
View
A
Retailer 7
-
€391 EUR
View
A
Retailer 8
-
€402 EUR
ZAR 7,279 ZAR
View
A
Retailer 9
-
€426 EUR
£376 GBP
View
B+
Retailer 10
-
€450 EUR
$505 USD
View
B+
Retailer 11
-
€512 EUR
$574 USD
View
B+
Retailer 12
-
€569 EUR
A$982 AUD
View
B+
Retailer 13
-
€606 EUR
$680 USD
View
B
Retailer 14
-
€748 EUR
$839 USD
View
B
Retailer 15
-
€757 EUR
SGD 1,147 SGD
View
B
Retailer 16
-
€794 EUR
$890 USD
View
B
Retailer 17
-
€795 EUR
$892 USD
View
B
Retailer 18
-
€932 EUR
£823 GBP
View
Most Expensive
B
Brilliant Earth
22143047A · Nov 2
€954 EUR
$1,070 USD
View
18 more retailers have this diamond
Prices start from €187 EURSave up to €767 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
1.23ct Heart
€187 EUR