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Heart|Lab Grown|IGI

12.56ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG813643585

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG813643585

Diamond specifications and retailer prices

From €3,217 EUR
$3,594 USD
As of October 27, 2026
Save €9,937 EUR (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €13,154 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 12.56ct lab-grown heart diamond

This 12.56ct 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 LG813643585 or 813643585. Listed at 16 retailers as of October 27, 2026, with prices from €3,217 to €13,154, a €9,937 spread on the same certified stone. Taylor and Hart lists it at €13,154. 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

12.56
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813643585
Dimensions16.63 × 14.58 × 8.49 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.63 mm14.58 mm12.56 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813643585
Side View
Table 66.0%Crown 39.6°Girdle: MED-THKPavilion 35.3°Culet: NoneDepth 51.1%

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: Oct 27
Current: €5,776 EUR|Low: €2,445 EUR|High: €13,154 EUR|Avg: €6,618 EUR|+7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 29, 2026
Retailer 2€3,603 EUR
Retailer 4€3,733 EUR
Retailer 10€4,001 EUR
Retailer 3€4,996 EUR
Retailer 7€5,047 EUR
Retailer 5€5,384 EUR
Retailer 1€5,776 EUR
Retailer 6€6,994 EUR
Retailer 8€9,381 EUR
Retailer 9€10,009 EUR
Taylor and Hart€13,154 EUR

38 data points across 11 retailers

16 retailers€3,217 EUR to €13,154 EUR

A
Cheapest Retailer
-
€3,217 EUR
$3,594 USD
A
Retailer 2
-
€3,501 EUR
$3,911 USD
View
A
Retailer 3
-
€3,603 EUR
$4,025 USD
View
Final sale: no returns
Retailer 4
-
€3,732 EUR
$4,169 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
€3,732 EUR
$4,169 USD
View
A
Retailer 6
-
€3,733 EUR
$4,170 USD
View
A
Retailer 7
-
€4,001 EUR
$4,470 USD
View
B+
Retailer 8
-
€4,663 EUR
$5,210 USD
View
B+
Retailer 9
-
€4,996 EUR
£4,395 GBP
View
B+
Retailer 10
-
€5,047 EUR
$5,638 USD
View
B+
Retailer 11
-
€5,384 EUR
$6,015 USD
View
B+
Retailer 12
-
€5,776 EUR
ZAR 104,253 ZAR
View
Retailer 13
-
€6,994 EUR
A$12,021 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
€9,381 EUR
$10,480 USD
View
B
Retailer 15
-
€10,009 EUR
$11,182 USD
View
Most Expensive
B
Taylor and Hart
97C2D4F · Oct 30
€13,154 EUR
$14,695 USD
View
15 more retailers have this diamond
Prices start from €3,217 EURSave up to €9,937 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
12.56ct Heart
€3,217 EUR