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Princess|Lab Grown|IGI

1.28ct F VS1 Princess Lab Grown Diamond

ID • F/VS1 • IGI LG620456346

Shape and cutting style on the report: Princess cut

Certificate IGI LG620456346

Diamond specifications and retailer prices

From €375 EUR
$419 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: €375 EUR at Loose Grown Diamond
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Loose Grown Diamond

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 LG620456346 or 620456346. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620456346
Dimensions5.98 × 5.91 × 4.16 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
5.98 mm5.91 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620456346
Side View
Table 70.0%Crown 42.2°Girdle: MediumPavilion 38°Culet: NoneDepth 70.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: €375 EUR|Low: €160 EUR|High: €2,247 EUR|Avg: €982 EUR|-22.0%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 23, 2026
Loose Grown Diamond€375 EUR
Retailer 8€542 EUR
Retailer 5€627 EUR
Retailer 3€649 EUR
Retailer 4€864 EUR
Retailer 2€928 EUR
Retailer 9€1,255 EUR
Retailer 6€1,258 EUR
Retailer 7€2,247 EUR

38 data points across 9 retailers

1 retailer

B+
Loose Grown Diamond
620456346 · Nov 1
€375 EUR
$419 USD
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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.

B+
1.28ct Princess
€375 EUR