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Heart|Lab Grown|IGI

12.33ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG602390181

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG602390181

Diamond specifications and retailer prices

From €4,577 EUR
$5,134 USD
As of November 1, 2026
Save €12,372 EUR (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €16,949 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.33ct lab-grown heart diamond

This 12.33ct lab-grown heart sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG602390181 or 602390181. Listed at 16 retailers as of October 31, 2026, with prices from €4,577 to €16,949, a €12,372 spread on the same certified stone. Taylor and Hart lists it at €16,949. 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

12.33
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602390181
Dimensions14.00 × 15.89 × 9.24 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.00 mm15.89 mm12.33 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602390181
Side View
Table 63.0%Crown 37.6°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 58.1%

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 1
Current: €5,580 EUR|Low: €3,924 EUR|High: €16,949 EUR|Avg: €7,175 EUR|-13.0%
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
Taylor and Hart
November 2, 2026
Retailer 12€4,087 EUR
Retailer 2€4,283 EUR
Retailer 4€4,577 EUR
Retailer 11€4,712 EUR
Retailer 13€4,741 EUR
Retailer 3€4,815 EUR
Retailer 1€5,580 EUR
Retailer 15€5,925 EUR
Retailer 7€6,000 EUR
Retailer 10€7,182 EUR
Retailer 14€7,332 EUR
Retailer 9€7,339 EUR
Retailer 6€7,592 EUR
Retailer 8€8,973 EUR
Retailer 5€13,177 EUR
Taylor and Hart€16,949 EUR

22 data points across 16 retailers

16 retailers€4,577 EUR to €16,949 EUR

Retailer 1
-
€4,087 EUR
$4,584 USD
Price last confirmed 12 days ago
Retailer 2
-
€4,283 EUR
$4,804 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
€4,577 EUR
$5,134 USD
View
Final sale: no returns
A
Retailer 4
-
€4,712 EUR
$5,285 USD
View
Retailer 5
-
€4,741 EUR
$5,318 USD
View
Price last confirmed 11 days ago
Retailer 6
-
€4,741 EUR
$5,318 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
€4,815 EUR
$5,400 USD
View
B+
Retailer 8
-
€5,580 EUR
$6,258 USD
View
Retailer 9
-
€5,925 EUR
$6,645 USD
View
Price last confirmed 11 days ago
Retailer 10
-
€6,411 EUR
$7,191 USD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
€7,182 EUR
$8,055 USD
View
B
Retailer 12
-
€7,332 EUR
$8,224 USD
View
B+
Retailer 13
-
€7,339 EUR
ZAR 132,971 ZAR
View
B
Retailer 14
-
€8,973 EUR
A$15,484 AUD
View
B
Retailer 15
-
€13,177 EUR
$14,779 USD
View
Most Expensive
B
Taylor and Hart
6ZMYRM5 · Oct 31
€16,949 EUR
$19,010 USD
View
15 more retailers have this diamond
Prices start from €4,577 EURSave up to €12,372 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
12.33ct Heart
€4,577 EUR