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Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG830620399

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620399

Diamond specifications and retailer prices

From €210 EUR
$236 USD
As of November 1, 2026
Save €744 EUR (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €954 EUR at Brilliant Earth · As of October 31, 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 LG830620399 or 830620399. Listed at 14 retailers as of October 31, 2026, with prices from €210 to €954, a €744 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 angle38.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620399
Dimensions6.79 × 7.35 × 4.19 mm
L/W Ratio1.08
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
6.79 mm7.35 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620399
Side View
Table 62.0%Crown 38.3°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 57.0%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €285 EUR|Low: €210 EUR|High: €938 EUR|Avg: €547 EUR|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 2€210 EUR
Retailer 1€285 EUR
Retailer 8€391 EUR
Retailer 11€399 EUR
Retailer 7€402 EUR
Retailer 6€426 EUR
Retailer 12€512 EUR
Retailer 13€569 EUR
Retailer 9€751 EUR
Retailer 3€757 EUR
Retailer 4€794 EUR
Retailer 5€795 EUR
Retailer 10€938 EUR

8 data points across 13 retailers

14 retailers€210 EUR to €954 EUR

A
Cheapest Retailer
-
€210 EUR
$236 USD
Final sale: no returns
A
Retailer 2
-
€285 EUR
£252 GBP
View
A
Retailer 3
-
€391 EUR
View
A
Retailer 4
-
€399 EUR
$448 USD
View
A
Retailer 5
-
€402 EUR
ZAR 7,279 ZAR
View
A
Retailer 6
-
€426 EUR
£376 GBP
View
B+
Retailer 7
-
€512 EUR
$574 USD
View
B+
Retailer 8
-
€569 EUR
A$981 AUD
View
B
Retailer 9
-
€751 EUR
$842 USD
View
B
Retailer 10
-
€757 EUR
SGD 1,147 SGD
View
B
Retailer 11
-
€794 EUR
$890 USD
View
B
Retailer 12
-
€795 EUR
$892 USD
View
B
Retailer 13
-
€938 EUR
£828 GBP
View
Most Expensive
B
Brilliant Earth
22311013A · Oct 31
€954 EUR
$1,070 USD
View
13 more retailers have this diamond
Prices start from €210 EURSave up to €744 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
€210 EUR