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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 €188 EUR
$210 USD
As of October 30, 2026
Save €770 EUR (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €958 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 LG840634566 or 840634566. Listed at 19 retailers as of October 30, 2026, with prices from €188 to €958, a €770 spread on the same certified stone. Brilliant Earth lists it at €958. 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
Color
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: Oct 30
Current: €958 EUR|Low: €188 EUR|High: €966 EUR|Avg: €529 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
October 31, 2026
Retailer 11€188 EUR
Retailer 5€211 EUR
Retailer 4€218 EUR
Retailer 9€234 EUR
Retailer 18€234 EUR
Retailer 14€287 EUR
Retailer 2€393 EUR
Retailer 16€401 EUR
Retailer 12€428 EUR
Retailer 19€452 EUR
Retailer 3€514 EUR
Retailer 17€571 EUR
Retailer 13€602 EUR
Retailer 8€751 EUR
Retailer 7€760 EUR
Retailer 10€797 EUR
Retailer 6€798 EUR
Retailer 15€941 EUR
Brilliant Earth€958 EUR

16 data points across 19 retailers

19 retailers€188 EUR to €958 EUR

A
Cheapest Retailer
-
€188 EUR
$210 USD
A
Retailer 2
-
€211 EUR
$236 USD
View
Final sale: no returns
A
Retailer 3
-
€218 EUR
$244 USD
View
A
Retailer 4
-
€234 EUR
$261 USD
View
A
Retailer 5
-
€234 EUR
$261 USD
View
A
Retailer 6
-
€287 EUR
£252 GBP
View
A
Retailer 7
-
€393 EUR
View
A
Retailer 8
-
€401 EUR
ZAR 7,243 ZAR
View
A
Retailer 9
-
€428 EUR
£376 GBP
View
B+
Retailer 10
-
€452 EUR
$505 USD
View
B+
Retailer 11
-
€514 EUR
$574 USD
View
B+
Retailer 12
-
€571 EUR
A$981 AUD
View
B+
Retailer 13
-
€602 EUR
$673 USD
View
B
Retailer 14
-
€751 EUR
$839 USD
View
B
Retailer 15
-
€760 EUR
SGD 1,147 SGD
View
B
Retailer 16
-
€797 EUR
$890 USD
View
B
Retailer 17
-
€798 EUR
$892 USD
View
B
Retailer 18
-
€941 EUR
£828 GBP
View
Most Expensive
B
Brilliant Earth
22143047A · Oct 31
€958 EUR
$1,070 USD
View
18 more retailers have this diamond
Prices start from €188 EURSave up to €770 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
€188 EUR