Princess|Lab Grown|IGI

1.51ct F IF Princess Lab Grown Diamond

ID • F/IF • IGI LG624440106

Shape and cutting style on the report: Princess cut

Certificate IGI LG624440106

Diamond specifications and retailer prices

From £279 GBP
As of November 4, 2026
Save £1,534 GBP (85%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £2,019 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG624440106 or 624440106. Listed at 28 retailers as of November 4, 2026, with a 549% 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

1.51
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624440106
Dimensions6.12 × 6.04 × 4.45 mm
L/W Ratio1.01
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
6.12 mm6.04 mm1.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624440106
Side View
Table 66.0%Crown 42.3°Girdle: MediumPavilion 38.2°Culet: NoneDepth 73.7%

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 4
Current: £615 GBP|Low: £279 GBP|High: £1,813 GBP|Avg: £788 GBP|-2.4%
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November 6, 2026
Retailer 5£279 GBP
Retailer 11£312 GBP
Retailer 4£313 GBP
Retailer 7£346 GBP
Retailer 10£346 GBP
Retailer 12£354 GBP
Retailer 3£457 GBP
Retailer 13£464 GBP
Retailer 2£533 GBP
Retailer 9£584 GBP
Retailer 23£597 GBP
Retailer 1£615 GBP
Retailer 8£766 GBP
Retailer 20£807 GBP
Retailer 21£870 GBP
Retailer 22£971 GBP
Retailer 17£1,112 GBP
Retailer 16£1,141 GBP
Retailer 15£1,297 GBP
Retailer 14£1,303 GBP
Retailer 19£1,348 GBP
Retailer 18£1,370 GBP
Retailer 25£1,466 GBP
Retailer 6£1,512 GBP
Retailer 24£1,813 GBP

29 data points across 25 retailers

28 retailers£279 GBP to £1,813 GBP

A
Cheapest Retailer
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£279 GBP
A
Retailer 2
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£312 GBP
View
Final sale: no returns
A
Retailer 3
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£313 GBP
View
Retailer 4
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£346 GBP
View
Price last confirmed 12 days ago
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Retailer 5
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£346 GBP
View
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Retailer 6
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£354 GBP
View
A
Retailer 7
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£457 GBP
View
A
Retailer 8
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£464 GBP
View
Retailer 9
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£533 GBP
View
Price last confirmed 8 days ago
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Retailer 10
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£584 GBP
View
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Retailer 11
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£597 GBP
View
A
Retailer 12
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£615 GBP
View
A
Retailer 13
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£766 GBP
View
A
Retailer 14
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£807 GBP
View
A
Retailer 15
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£870 GBP
View
A
Retailer 16
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£876 GBP
View
B+
Retailer 17
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£971 GBP
View
B+
Retailer 18
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£1,087 GBP
View
B+
Retailer 19
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£1,112 GBP
View
B+
Retailer 20
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£1,141 GBP
View
Retailer 21
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£1,297 GBP
View
Price last confirmed 10 days ago
B+
Retailer 22
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£1,303 GBP
View
B+
Retailer 23
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£1,348 GBP
View
Retailer 24
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£1,370 GBP
View
Price last confirmed 23 days ago
B+
Retailer 25
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£1,466 GBP
View
B+
Retailer 26
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£1,512 GBP
View
B
Retailer 27
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£1,813 GBP
View
Most Expensive
Queensmith
LG624440106 · Oct 27
£2,019 GBP
View
Price last confirmed 9 days ago
27 more retailers have this diamond
Prices start from £279 GBPSave up to £1,534 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
1.51ct Princess
£279 GBP