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Heart|Lab Grown|IGI

15.55ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG782651206

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG782651206

Diamond specifications and retailer prices

From €2,468 EUR
£2,179 GBP
As of October 27, 2026
Save €12,179 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €14,647 EUR at Adiamor · As of October 31, 2026
View at Adiamor

About this 15.55ct lab-grown heart diamond

This 15.55ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG782651206 or 782651206. Listed at 15 retailers as of October 27, 2026, with prices from €2,468 to €14,647, a €12,179 spread on the same certified stone. Adiamor lists it at €14,647. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

15.55
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782651206
Dimensions16.78 × 17.24 × 9.62 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.78 mm17.24 mm15.55 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782651206
Side View
Table 64.0%Crown 35.5°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 55.8%

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: €14,647 EUR|Low: €2,463 EUR|High: €20,471 EUR|Avg: €5,208 EUR|-1.5%
Adiamor
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
November 2, 2026
Retailer 11€2,468 EUR
Retailer 7€2,743 EUR
Retailer 15€2,957 EUR
Retailer 5€2,985 EUR
Retailer 4€3,063 EUR
Retailer 10€3,183 EUR
Retailer 9€3,412 EUR
Retailer 14€3,491 EUR
Retailer 2€3,805 EUR
Retailer 3€3,828 EUR
Retailer 12€4,114 EUR
Retailer 8€4,450 EUR
Retailer 13€4,760 EUR
Retailer 6€10,851 EUR
Adiamor€14,647 EUR

34 data points across 15 retailers

15 retailers€2,468 EUR to €14,647 EUR

A
Cheapest Retailer
-
€2,468 EUR
£2,179 GBP
Retailer 2
-
€2,743 EUR
$3,077 USD
View
Price last confirmed 10 days ago
Retailer 3
-
€2,985 EUR
$3,348 USD
View
Price last confirmed 9 days ago
Retailer 4
-
€3,063 EUR
$3,435 USD
View
Price last confirmed 7 days ago
Retailer 5
-
€3,183 EUR
$3,570 USD
View
Price last confirmed 5 days ago
A
Retailer 6
-
€3,412 EUR
HK$29,900 HKD
View
Retailer 7
-
€3,491 EUR
$3,916 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
€3,805 EUR
$4,268 USD
View
Retailer 9
-
€3,828 EUR
$4,293 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
€4,114 EUR
£3,634 GBP
View
B+
Retailer 11
-
€4,450 EUR
View
Retailer 12
-
€4,760 EUR
$5,339 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
€10,851 EUR
$12,170 USD
View
Retailer 14
-
€14,114 EUR
$15,830 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Adiamor
D-81133477 · Oct 31
€14,647 EUR
$16,428 USD
View
14 more retailers have this diamond
Prices start from €2,468 EURSave up to €12,179 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
15.55ct Heart
€2,468 EUR