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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 €184 EUR
$206 USD
As of October 30, 2026
Save €885 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,480 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 October 29, 2026, with a 482% 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
Color
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

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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 30
Current: €1,480 EUR|Low: €177 EUR|High: €1,480 EUR|Avg: €507 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10€184 EUR
Retailer 9€213 EUR
Retailer 8€227 EUR
Retailer 12€227 EUR
Retailer 5€292 EUR
Retailer 3€394 EUR
Retailer 2€415 EUR
Retailer 4€455 EUR
Retailer 11€731 EUR
Retailer 7€734 EUR
Retailer 6€1,069 EUR
Brilliant Earth€1,480 EUR

42 data points across 12 retailers

14 retailers€184 EUR to €1,069 EUR

A
Cheapest Retailer
-
€184 EUR
$206 USD
A
Retailer 2
-
€213 EUR
$239 USD
View
A
Retailer 3
-
€227 EUR
$255 USD
View
Retailer 4
-
€227 EUR
$255 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€292 EUR
£258 GBP
View
B+
Retailer 6
-
€394 EUR
$442 USD
View
B+
Retailer 7
-
€410 EUR
$460 USD
View
A
Retailer 8
-
€415 EUR
£367 GBP
View
B+
Retailer 9
-
€455 EUR
$510 USD
View
B
Retailer 10
-
€731 EUR
$820 USD
View
B
Retailer 11
-
€734 EUR
$823 USD
View
B
Retailer 12
-
€779 EUR
$873 USD
View
B
Retailer 13
-
€1,069 EUR
£944 GBP
View
Most Expensive
Brilliant Earth
15813751A · Oct 18
€1,480 EUR
$1,660 USD
View
Price last confirmed 14 days ago
13 more retailers have this diamond
Prices start from €184 EURSave up to €885 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
€184 EUR