Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

VG • E/VVS1 • IGI LG831679941

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831679941

Diamond specifications and retailer prices

From €188 EUR
$210 USD
As of October 30, 2026
Save €1,334 EUR (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,522 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 very-good cut grade and certified by IGI LG831679941 or 831679941. Listed at 14 retailers as of October 30, 2026, with prices from €188 to €1,522, a €1,334 spread on the same certified stone. Brilliant Earth lists it at €1,522. 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

1.23
Carat
E
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831679941
Dimensions6.69 × 7.78 × 4.00 mm
L/W Ratio1.16
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
6.69 mm7.78 mm1.23 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831679941
Side View
Table 61.0%Crown 31.7°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 51.4%

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: €1,522 EUR|Low: €188 EUR|High: €1,522 EUR|Avg: €581 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
November 1, 2026
Retailer 10€188 EUR
Retailer 5€211 EUR
Retailer 4€234 EUR
Retailer 12€287 EUR
Retailer 11€401 EUR
Retailer 7€432 EUR
Retailer 9€452 EUR
Retailer 14€514 EUR
Retailer 2€751 EUR
Retailer 8€754 EUR
Retailer 6€760 EUR
Retailer 13€797 EUR
Retailer 3€798 EUR
Brilliant Earth€1,522 EUR

4 data points across 14 retailers

14 retailers€188 EUR to €1,522 EUR

A
Cheapest Retailer
-
€188 EUR
$210 USD
A
Retailer 2
-
€211 EUR
$236 USD
View
Final sale: no returns
A
Retailer 3
-
€234 EUR
$261 USD
View
A
Retailer 4
-
€287 EUR
£252 GBP
View
B+
Retailer 5
-
€401 EUR
$448 USD
View
B+
Retailer 6
-
€432 EUR
£380 GBP
View
B+
Retailer 7
-
€452 EUR
$505 USD
View
B+
Retailer 8
-
€514 EUR
$574 USD
View
B
Retailer 9
-
€751 EUR
$839 USD
View
B
Retailer 10
-
€754 EUR
$842 USD
View
B
Retailer 11
-
€760 EUR
SGD 1,147 SGD
View
B
Retailer 12
-
€797 EUR
$890 USD
View
B
Retailer 13
-
€798 EUR
$892 USD
View
Most Expensive
B
Brilliant Earth
22348803A · Oct 31
€1,522 EUR
$1,700 USD
View
13 more retailers have this diamond
Prices start from €188 EURSave up to €1,334 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