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Princess|Lab Grown|IGI

11.23ct F VS1 Princess Lab Grown Diamond

ID • F/VS1 • IGI LG623421591

Shape and cutting style on the report: Princess cut

Certificate IGI LG623421591

Diamond specifications and retailer prices

From £3,406 GBP
$4,564 USD
As of October 31, 2026
Save £12,483 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £15,889 GBP at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 11.23ct lab-grown princess diamond

This 11.23ct lab-grown princess sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG623421591 or 623421591. Listed at 10 retailers as of October 31, 2026, with a 366% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.23
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623421591
Dimensions12.27 × 11.98 × 8.62 mm
L/W Ratio1.02
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
12.27 mm11.98 mm11.23 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623421591
Side View
Table 73.0%Crown 45.6°Girdle: MediumPavilion 38.9°Culet: NoneDepth 72.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £15,889 GBP|Low: £3,406 GBP|High: £16,374 GBP|Avg: £6,360 GBP|-3.0%
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
October 31, 2026
Retailer 10£3,406 GBP
Retailer 6£3,483 GBP
Retailer 15£3,790 GBP
Retailer 13£3,808 GBP
Retailer 8£4,048 GBP
Retailer 3£4,420 GBP
Retailer 4£4,686 GBP
Retailer 9£4,825 GBP
Retailer 11£6,395 GBP
Retailer 12£6,638 GBP
Retailer 2£6,638 GBP
Retailer 7£7,628 GBP
Retailer 5£9,470 GBP
Retailer 14£9,607 GBP
Brilliant Earth£15,889 GBP

21 data points across 15 retailers

10 retailers£3,406 GBP to £15,889 GBP

A
Cheapest Retailer
-
£3,406 GBP
$4,564 USD
B+
Retailer 2
-
£3,808 GBP
$5,102 USD
View
B+
Retailer 3
-
£4,048 GBP
€5,166 EUR
View
B+
Retailer 4
-
£4,825 GBP
$6,465 USD
View
B
Retailer 5
-
£6,395 GBP
$8,568 USD
View
B
Retailer 6
-
£6,638 GBP
$8,894 USD
View
B+
Retailer 7
-
£6,638 GBP
A$13,684 AUD
View
B
Retailer 8
-
£9,803 GBP
$13,135 USD
View
B
Retailer 9
-
£15,889 GBP
$21,290 USD
View
Most Expensive
Brilliant Earth
16057001A · Oct 8
£15,889 GBP
$21,290 USD
View
Price last confirmed 24 days ago
9 more retailers have this diamond
Prices start from £3,406 GBPSave up to £12,483 GBP

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
11.23ct Princess
£3,406 GBP