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Princess|Lab Grown|IGI

1.03ct F IF Princess Lab Grown Diamond

ID • F/IF • IGI LG687543707

Shape and cutting style on the report: Princess cut

Certificate IGI LG687543707

Diamond specifications and retailer prices

From £138 GBP
As of November 4, 2026
Save £958 GBP (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,096 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.03ct lab-grown princess diamond

This 1.03ct lab-grown princess sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG687543707 or 687543707. Listed at 19 retailers as of November 2, 2026, with prices from £138 to £1,096, a £958 spread on the same certified stone. Brilliant Earth lists it at £1,096. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687543707
Dimensions5.45 × 5.42 × 3.81 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
5.45 mm5.42 mm1.03 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG687543707
Side View
Table 68.0%Crown 44°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 70.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,096 GBP|Low: £136 GBP|High: £1,320 GBP|Avg: £437 GBP|-16.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 4, 2026
Retailer 6£138 GBP
Retailer 7£154 GBP
Retailer 15£160 GBP
Retailer 9£171 GBP
Retailer 18£171 GBP
Retailer 12£295 GBP
Retailer 3£301 GBP
Retailer 2£306 GBP
Retailer 14£329 GBP
Retailer 17£350 GBP
Retailer 16£441 GBP
Retailer 11£461 GBP
Retailer 5£550 GBP
Retailer 10£589 GBP
Retailer 8£590 GBP
Retailer 13£800 GBP
Retailer 4£854 GBP
Brilliant Earth£1,096 GBP

44 data points across 18 retailers

19 retailers£138 GBP to £1,096 GBP

A
Cheapest Retailer
-
£138 GBP
A
Retailer 2
-
£154 GBP
View
Final sale: no returns
A
Retailer 3
-
£160 GBP
View
A
Retailer 4
-
£171 GBP
View
Retailer 5
-
£171 GBP
View
Price last confirmed 10 days ago
A
Retailer 6
-
£295 GBP
View
A
Retailer 7
-
£301 GBP
View
A
Retailer 8
-
£306 GBP
View
A
Retailer 9
-
£329 GBP
View
A
Retailer 10
-
£350 GBP
View
B+
Retailer 11
-
£441 GBP
View
B+
Retailer 12
-
£461 GBP
View
B+
Retailer 13
-
£550 GBP
View
B+
Retailer 14
-
£590 GBP
View
B+
Retailer 15
-
£601 GBP
View
B+
Retailer 16
-
£800 GBP
View
B
Retailer 17
-
£854 GBP
View
Retailer 18
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£893 GBP
View
Price last confirmed 87 days ago
Most Expensive
B
Brilliant Earth
14715748A · Nov 2
£1,096 GBP
$1,470 USD
View
18 more retailers have this diamond
Prices start from £138 GBPSave up to £958 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
1.03ct Princess
£138 GBP