Heart|Lab Grown|IGI

12.23ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG629419894

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG629419894

Diamond specifications and retailer prices

From €5,253 EUR
£4,621 GBP
As of October 30, 2026
Save €17,342 EUR (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €22,595 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 12.23ct lab-grown heart diamond

This 12.23ct lab-grown heart sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG629419894 or 629419894. Listed at 20 retailers as of October 30, 2026, with prices from €5,253 to €22,595, a €17,342 spread on the same certified stone. Taylor and Hart lists it at €22,595. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.23
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629419894
Dimensions13.58 × 15.93 × 9.70 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Top View
13.58 mm15.93 mm12.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629419894
Side View
Table 60.0%Crown 36.8°Girdle: STK-VTKPavilion 40.3°Culet: NoneDepth 60.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €8,113 EUR|Low: €5,235 EUR|High: €18,144 EUR|Avg: €8,942 EUR|-0.8%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 11€5,253 EUR
Retailer 18€5,621 EUR
Retailer 9€6,190 EUR
Retailer 7€6,296 EUR
Retailer 4€6,503 EUR
Retailer 2€6,521 EUR
Retailer 6€6,521 EUR
Retailer 16€7,145 EUR
Retailer 3€7,562 EUR
Retailer 5€7,741 EUR
Retailer 1€8,113 EUR
Retailer 12€10,094 EUR
Retailer 10€10,349 EUR
Retailer 13€10,390 EUR
Retailer 17€11,379 EUR
Retailer 14€12,247 EUR
Retailer 15€12,502 EUR
Retailer 8€18,144 EUR

37 data points across 18 retailers

20 retailers€5,253 EUR to €22,595 EUR

B+
Cheapest Retailer
-
€5,253 EUR
£4,621 GBP
Retailer 2
-
€5,621 EUR
$6,280 USD
View
Price last confirmed 9 days ago
Retailer 3
-
€5,846 EUR
$6,531 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
€6,190 EUR
$6,916 USD
View
B+
Retailer 5
-
€6,296 EUR
$7,034 USD
View
Final sale: no returns
B+
Retailer 6
-
€6,503 EUR
$7,265 USD
View
Retailer 7
-
€6,521 EUR
$7,285 USD
View
Price last confirmed 9 days ago
Retailer 8
-
€6,521 EUR
$7,285 USD
View
Price last confirmed 18 days ago
B+
Retailer 9
-
€7,145 EUR
$7,982 USD
View
Retailer 10
-
€7,562 EUR
$8,448 USD
View
Price last confirmed 10 days ago
Retailer 11
-
€7,741 EUR
$8,648 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
€8,113 EUR
£7,137 GBP
View
Retailer 13
-
€8,292 EUR
£7,295 GBP
View
Price last confirmed 9 days ago
B
Retailer 14
-
€10,094 EUR
ZAR 182,174 ZAR
View
B
Retailer 15
-
€10,390 EUR
$11,608 USD
View
Retailer 16
-
€11,379 EUR
A$19,558 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
€12,247 EUR
$13,682 USD
View
Retailer 18
-
€12,502 EUR
A$21,489 AUD
View
Price last confirmed 9 days ago
B
Retailer 19
-
€18,144 EUR
$20,271 USD
View
Most Expensive
B
Taylor and Hart
LSXFFVE · Oct 30
€22,595 EUR
$25,243 USD
View
19 more retailers have this diamond
Prices start from €5,253 EURSave up to €17,342 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.

B+
12.23ct Heart
€5,253 EUR