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Princess|Lab Grown|IGI

1.50ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG623405979

Shape and cutting style on the report: Princess cut

Certificate IGI LG623405979

Diamond specifications and retailer prices

From €189 EUR
As of November 6, 2026
Save €760 EUR (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €949 EUR at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.5ct lab-grown princess diamond

This 1.5ct lab-grown princess 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 LG623405979 or 623405979. Listed at 16 retailers as of November 6, 2026, with prices from €189 to €949, a €760 spread on the same certified stone. Brilliant Earth lists it at €949. 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 angle45.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623405979
Dimensions6.04 × 5.98 × 4.60 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.04 mm5.98 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623405979
Side View
Table 76.0%Crown 45.6°Girdle: ThickPavilion 40.5°Culet: NoneDepth 76.9%

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: Nov 6
Current: €949 EUR|Low: €189 EUR|High: €1,487 EUR|Avg: €567 EUR|-36.1%
Brilliant Earth
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
November 6, 2026
Retailer 3€189 EUR
Retailer 12€219 EUR
Retailer 5€235 EUR
Retailer 6€237 EUR
Retailer 2€298 EUR
Retailer 4€396 EUR
Retailer 14€404 EUR
Retailer 7€429 EUR
Retailer 13€463 EUR
Retailer 10€755 EUR
Retailer 11€758 EUR
Retailer 9€761 EUR
Retailer 8€938 EUR
Brilliant Earth€949 EUR

39 data points across 14 retailers

16 retailers€189 EUR to €949 EUR

A
Cheapest Retailer
-
€189 EUR
A
Retailer 2
-
€212 EUR
View
Final sale: no returns
A
Retailer 3
-
€219 EUR
View
A
Retailer 4
-
€235 EUR
View
Retailer 5
-
€237 EUR
View
Price last confirmed 13 days ago
A
Retailer 6
-
€298 EUR
View
Retailer 7
-
€396 EUR
View
Price last confirmed 9 days ago
A
Retailer 8
-
€404 EUR
View
B+
Retailer 9
-
€414 EUR
View
A
Retailer 10
-
€429 EUR
View
B+
Retailer 11
-
€463 EUR
View
B
Retailer 12
-
€755 EUR
View
B
Retailer 13
-
€758 EUR
View
B
Retailer 14
-
€761 EUR
View
B
Retailer 15
-
€938 EUR
View
Most Expensive
B
Brilliant Earth
10774028A · Nov 6
€949 EUR
$1,060 USD
View
15 more retailers have this diamond
Prices start from €189 EURSave up to €760 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 Princess
€189 EUR