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Princess|Lab Grown|IGI

1.28ct F IF Princess Lab Grown Diamond

ID • F/IF • IGI LG683544256

Shape and cutting style on the report: Princess cut

Certificate IGI LG683544256

Diamond specifications and retailer prices

From €389 EUR
As of November 6, 2026
Save €1,600 EUR (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,988 EUR at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683544256 or 683544256. Listed at 23 retailers as of November 4, 2026, with prices from €389 to €1,988, a €1,600 spread on the same certified stone. Brilliant Earth lists it at €1,988. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683544256
Dimensions5.92 × 5.90 × 4.14 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.92 mm5.90 mm1.28 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683544256
Side View
Table 67.0%Crown 41.7°Girdle: THN-MEDPavilion 37.9°Culet: NoneDepth 70.2%

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: €1,988 EUR|Low: €385 EUR|High: €1,988 EUR|Avg: €1,006 EUR|+0.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
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Retailer 19
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Retailer 21
November 6, 2026
Retailer 10€389 EUR
Retailer 20€435 EUR
Retailer 21€436 EUR
Retailer 6€483 EUR
Retailer 11€483 EUR
Retailer 17€614 EUR
Retailer 5€688 EUR
Retailer 7€760 EUR
Retailer 2€788 EUR
Retailer 18€832 EUR
Retailer 19€848 EUR
Retailer 4€857 EUR
Retailer 14€1,172 EUR
Retailer 13€1,179 EUR
Retailer 3€1,290 EUR
Retailer 16€1,353 EUR
Retailer 9€1,551 EUR
Retailer 12€1,579 EUR
Retailer 8€1,738 EUR
Retailer 15€1,767 EUR
Brilliant Earth€1,988 EUR

37 data points across 21 retailers

23 retailers€389 EUR to €1,988 EUR

A
Cheapest Retailer
-
€389 EUR
A
Retailer 2
-
€435 EUR
View
Final sale: no returns
A
Retailer 3
-
€436 EUR
View
A
Retailer 4
-
€483 EUR
View
Retailer 5
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€483 EUR
View
Price last confirmed 13 days ago
A
Retailer 6
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€614 EUR
View
A
Retailer 7
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€688 EUR
View
A
Retailer 8
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€760 EUR
View
A
Retailer 9
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€788 EUR
View
B+
Retailer 10
-
€832 EUR
View
Retailer 11
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€848 EUR
View
Price last confirmed 9 days ago
B+
Retailer 12
-
€857 EUR
View
Retailer 13
-
€1,172 EUR
View
Price last confirmed 30 days ago
B+
Retailer 14
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€1,179 EUR
View
B+
Retailer 15
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€1,181 EUR
View
Retailer 16
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€1,290 EUR
View
Price last confirmed 20 days ago
B
Retailer 17
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€1,353 EUR
View
B
Retailer 18
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€1,551 EUR
View
B
Retailer 19
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€1,579 EUR
View
B
Retailer 20
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€1,738 EUR
View
B
Retailer 21
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€1,767 EUR
View
B
Retailer 22
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€1,868 EUR
View
Most Expensive
B
Brilliant Earth
14844749A · Nov 4
€1,988 EUR
$2,220 USD
View
22 more retailers have this diamond
Prices start from €389 EURSave up to €1,600 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
€389 EUR