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Heart|Lab Grown|IGI

15.55ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG754586212

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG754586212

Diamond specifications and retailer prices

From €2,370 EUR
£2,093 GBP
As of October 27, 2026
Save €12,243 EUR (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €14,613 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 LG754586212 or 754586212. Listed at 15 retailers as of October 27, 2026, with prices from €2,370 to €14,613, a €12,243 spread on the same certified stone. Adiamor lists it at €14,613. 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 angle34.7°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754586212
Dimensions17.11 × 16.29 × 9.78 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.11 mm16.29 mm15.55 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754586212
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 57.2%

Caratlytics Score

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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 27
Current: €14,613 EUR|Low: €2,365 EUR|High: €14,796 EUR|Avg: €5,181 EUR|-1.2%
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
October 31, 2026
Retailer 10€2,370 EUR
Retailer 5€2,743 EUR
Retailer 3€2,941 EUR
Retailer 4€2,985 EUR
Retailer 9€3,183 EUR
Retailer 8€3,378 EUR
Retailer 13€3,383 EUR
Retailer 7€3,858 EUR
Retailer 11€3,950 EUR
Retailer 14€4,043 EUR
Retailer 2€4,415 EUR
Retailer 12€4,575 EUR
Retailer 6€10,851 EUR
Adiamor€14,613 EUR

32 data points across 14 retailers

15 retailers€2,370 EUR to €14,613 EUR

A
Cheapest Retailer
-
€2,370 EUR
£2,093 GBP
Retailer 2
-
€2,743 EUR
$3,077 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
€2,941 EUR
$3,299 USD
View
Retailer 4
-
€2,985 EUR
$3,348 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€3,183 EUR
$3,570 USD
View
A
Retailer 6
-
€3,378 EUR
HK$29,600 HKD
View
A
Retailer 7
-
€3,383 EUR
$3,794 USD
View
A
Retailer 8
-
€3,858 EUR
$4,327 USD
View
A
Retailer 9
-
€3,950 EUR
£3,489 GBP
View
B+
Retailer 10
-
€4,043 EUR
$4,535 USD
View
B+
Retailer 11
-
€4,415 EUR
View
B+
Retailer 12
-
€4,575 EUR
$5,131 USD
View
Retailer 13
-
€10,851 EUR
$12,170 USD
View
Price last confirmed 22 days ago
B
Retailer 14
-
€10,851 EUR
$12,170 USD
View
Most Expensive
B
Adiamor
D-81135881 · Oct 31
€14,613 EUR
$16,390 USD
View
14 more retailers have this diamond
Prices start from €2,370 EURSave up to €12,243 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
€2,370 EUR