CaratHunter
Plans
Heart|Lab Grown|IGI

1.50ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG636479171

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG636479171

Diamond specifications and retailer prices

From €185 EUR
As of November 6, 2026
Save €597 EUR (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,487 EUR at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.5ct lab-grown heart diamond

This 1.5ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG636479171 or 636479171. Listed at 14 retailers as of November 6, 2026, with a 324% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636479171
Dimensions7.17 × 8.05 × 4.54 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.17 mm8.05 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636479171
Side View
Table 62.0%Crown 31.1°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 56.4%

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: Nov 6
Current: €1,487 EUR|Low: €177 EUR|High: €1,487 EUR|Avg: €514 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 5€185 EUR
Retailer 7€214 EUR
Retailer 8€228 EUR
Retailer 11€228 EUR
Retailer 6€290 EUR
Retailer 3€396 EUR
Retailer 2€416 EUR
Retailer 4€734 EUR
Retailer 10€737 EUR
Retailer 9€1,073 EUR
Brilliant Earth€1,487 EUR

42 data points across 11 retailers

14 retailers€185 EUR to €782 EUR

A
Cheapest Retailer
-
€185 EUR
A
Retailer 2
-
€214 EUR
View
A
Retailer 3
-
€228 EUR
View
Retailer 4
-
€228 EUR
View
Price last confirmed 13 days ago
A
Retailer 5
-
€290 EUR
View
B+
Retailer 6
-
€396 EUR
View
B+
Retailer 7
-
€412 EUR
View
A
Retailer 8
-
€416 EUR
View
B+
Retailer 9
-
€457 EUR
View
B
Retailer 10
-
€734 EUR
View
B
Retailer 11
-
€737 EUR
View
B
Retailer 12
-
€782 EUR
View
Retailer 13
-
€1,073 EUR
View
Price last confirmed 9 days ago
Most Expensive
Brilliant Earth
15813751A · Oct 18
€1,487 EUR
$1,660 USD
View
Price last confirmed 19 days ago
13 more retailers have this diamond
Prices start from €185 EURSave up to €597 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
1.50ct Heart
€185 EUR