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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 €188 EUR
$211 USD
As of October 30, 2026
Save €757 EUR (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €945 EUR at Brilliant Earth · As of October 31, 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 October 30, 2026, with prices from €188 to €945, a €757 spread on the same certified stone. Brilliant Earth lists it at €945. 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 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: Oct 30
Current: €945 EUR|Low: €188 EUR|High: €1,480 EUR|Avg: €538 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
Retailer 15
November 1, 2026
Retailer 14€188 EUR
Retailer 7€211 EUR
Retailer 11€218 EUR
Retailer 3€234 EUR
Retailer 4€236 EUR
Retailer 2€299 EUR
Retailer 15€394 EUR
Retailer 13€402 EUR
Retailer 8€432 EUR
Retailer 12€461 EUR
Retailer 9€752 EUR
Retailer 10€754 EUR
Retailer 5€762 EUR
Retailer 6€942 EUR
Brilliant Earth€945 EUR

38 data points across 15 retailers

16 retailers€188 EUR to €945 EUR

A
Cheapest Retailer
-
€188 EUR
$211 USD
A
Retailer 2
-
€211 EUR
$237 USD
View
Final sale: no returns
A
Retailer 3
-
€218 EUR
$245 USD
View
A
Retailer 4
-
€234 EUR
$262 USD
View
A
Retailer 5
-
€236 EUR
$265 USD
View
A
Retailer 6
-
€299 EUR
£264 GBP
View
A
Retailer 7
-
€394 EUR
View
A
Retailer 8
-
€402 EUR
$451 USD
View
B+
Retailer 9
-
€412 EUR
$462 USD
View
B+
Retailer 10
-
€432 EUR
£382 GBP
View
B+
Retailer 11
-
€461 EUR
$517 USD
View
B
Retailer 12
-
€752 EUR
$843 USD
View
B
Retailer 13
-
€754 EUR
$846 USD
View
B
Retailer 14
-
€762 EUR
$855 USD
View
Retailer 15
-
€942 EUR
£832 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
10774028A · Oct 31
€945 EUR
$1,060 USD
View
15 more retailers have this diamond
Prices start from €188 EURSave up to €757 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
€188 EUR