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Princess|Lab Grown|IGI

1.28ct F VS1 Princess Lab Grown Diamond

EX • F/VS1 • IGI LG839697150

Shape and cutting style on the report: Princess cut

Certificate IGI LG839697150

Diamond specifications and retailer prices

From €191 EUR
$213 USD
As of November 1, 2026
Save €105 EUR (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €752 EUR at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 1.28ct lab-grown princess diamond

This 1.28ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839697150 or 839697150. Listed at 3 retailers as of November 1, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839697150
Dimensions5.92 × 5.85 × 4.23 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.92 mm5.85 mm1.28 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839697150
Side View
Table 67.0%Crown 41.9°Girdle: MediumPavilion 38.1°Culet: NoneDepth 72.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €191 EUR|Low: €191 EUR|High: €423 EUR|Avg: €323 EUR|-0.9%
Retailer 1
Retailer 2
Retailer 3
October 27, 2026
Retailer 1€191 EUR
Retailer 2€295 EUR
Retailer 3€423 EUR

5 data points across 3 retailers

3 retailers€191 EUR to €295 EUR

A
Cheapest Retailer
-
€191 EUR
$213 USD
Final sale: no returns
B+
Retailer 2
-
€295 EUR
$330 USD
View
Most Expensive
Brilliant Earth
21613315A · Oct 1
€752 EUR
$840 USD
View
Price last confirmed 31 days ago
2 more retailers have this diamond
Prices start from €191 EURSave up to €105 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
1.28ct Princess
€191 EUR