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Round|Lab Grown|IGI

1.03ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG807673326

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807673326

Diamond specifications and retailer prices

From £147 GBP
As of November 3, 2026
Save £964 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,111 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round 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 LG807673326 or 807673326. Listed at 21 retailers as of November 3, 2026, with prices from £147 to £1,111, a £964 spread on the same certified stone. Brilliant Earth lists it at £1,111. 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
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807673326
Dimensions6.44 × 6.42 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.44 mm6.42 mm1.03 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807673326
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
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 3
Current: £1,111 GBP|Low: £142 GBP|High: £1,370 GBP|Avg: £439 GBP|-18.9%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 18
November 5, 2026
Retailer 14£147 GBP
Retailer 16£171 GBP
Retailer 17£183 GBP
Retailer 10£184 GBP
Retailer 11£294 GBP
Retailer 5£316 GBP
Retailer 2£330 GBP
Retailer 3£336 GBP
Retailer 4£352 GBP
Retailer 8£360 GBP
Retailer 18£445 GBP
Retailer 9£550 GBP
Retailer 15£588 GBP
Retailer 13£590 GBP
Retailer 7£627 GBP
Retailer 12£633 GBP
Retailer 6£855 GBP
Brilliant Earth£1,111 GBP

41 data points across 18 retailers

21 retailers£147 GBP to £1,111 GBP

A
Cheapest Retailer
-
£147 GBP
A
Retailer 2
-
£171 GBP
View
A
Retailer 3
-
£183 GBP
View
Retailer 4
-
£184 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
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£246 GBP
View
A
Retailer 6
-
£294 GBP
View
A
Retailer 7
-
£316 GBP
View
A
Retailer 8
-
£330 GBP
View
A
Retailer 9
-
£336 GBP
View
B+
Retailer 10
-
£352 GBP
View
B+
Retailer 11
-
£359 GBP
View
B+
Retailer 12
-
£360 GBP
View
B+
Retailer 13
-
£445 GBP
View
B+
Retailer 14
-
£474 GBP
View
Retailer 15
-
£550 GBP
View
Price last confirmed 31 days ago
B
Retailer 16
-
£588 GBP
View
B
Retailer 17
-
£590 GBP
View
B
Retailer 18
-
£627 GBP
View
B
Retailer 19
-
£633 GBP
View
B
Retailer 20
-
£855 GBP
View
Most Expensive
B
Brilliant Earth
20478179A · Nov 3
£1,111 GBP
$1,500 USD
View
20 more retailers have this diamond
Prices start from £147 GBPSave up to £964 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 Round
£147 GBP