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 €387 EUR
$434 USD
As of October 30, 2026
Save €1,592 EUR (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,979 EUR at Brilliant Earth · As of October 29, 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 22 retailers as of October 29, 2026, with prices from €387 to €1,979, a €1,592 spread on the same certified stone. Brilliant Earth lists it at €1,979. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683544256
Dimensions5.90 × 5.90 × 5.92 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
5.90 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: Oct 30
Current: €1,979 EUR|Low: €383 EUR|High: €1,979 EUR|Avg: €1,019 EUR|+0.5%
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 10€387 EUR
Retailer 16€433 EUR
Retailer 19€434 EUR
Retailer 5€481 EUR
Retailer 11€481 EUR
Retailer 17€602 EUR
Retailer 4€685 EUR
Retailer 6€756 EUR
Retailer 2€791 EUR
Retailer 15€825 EUR
Retailer 13€844 EUR
Retailer 3€853 EUR
Retailer 7€1,166 EUR
Retailer 14€1,167 EUR
Retailer 20€1,179 EUR
Retailer 21€1,284 EUR
Retailer 9€1,544 EUR
Retailer 12€1,572 EUR
Retailer 8€1,731 EUR
Retailer 18€1,766 EUR
Brilliant Earth€1,979 EUR

35 data points across 21 retailers

22 retailers€387 EUR to €1,979 EUR

A
Cheapest Retailer
-
€387 EUR
$434 USD
A
Retailer 2
-
€433 EUR
$486 USD
View
Final sale: no returns
A
Retailer 3
-
€434 EUR
$487 USD
View
A
Retailer 4
-
€481 EUR
$539 USD
View
A
Retailer 5
-
€481 EUR
$539 USD
View
A
Retailer 6
-
€602 EUR
$675 USD
View
A
Retailer 7
-
€685 EUR
$768 USD
View
A
Retailer 8
-
€756 EUR
$848 USD
View
A
Retailer 9
-
€791 EUR
£699 GBP
View
B+
Retailer 10
-
€825 EUR
ZAR 14,957 ZAR
View
B+
Retailer 11
-
€844 EUR
View
B+
Retailer 12
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€853 EUR
$957 USD
View
B+
Retailer 13
-
€1,166 EUR
$1,308 USD
View
Retailer 14
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€1,167 EUR
A$2,013 AUD
View
Price last confirmed 25 days ago
Retailer 15
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€1,179 EUR
A$2,035 AUD
View
Price last confirmed 13 days ago
Retailer 16
-
€1,284 EUR
$1,440 USD
View
Price last confirmed 15 days ago
B
Retailer 17
-
€1,544 EUR
$1,732 USD
View
B
Retailer 18
-
€1,572 EUR
$1,764 USD
View
B
Retailer 19
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€1,731 EUR
$1,942 USD
View
B
Retailer 20
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€1,766 EUR
£1,560 GBP
View
B
Retailer 21
-
€1,860 EUR
$2,086 USD
View
Most Expensive
B
Brilliant Earth
14844749A · Oct 29
€1,979 EUR
$2,220 USD
View
21 more retailers have this diamond
Prices start from €387 EURSave up to €1,592 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
€387 EUR