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Round|Lab Grown|IGI

1.03ct F IF Round Lab Grown Diamond

EX • F/IF • IGI LG813627814

Shape and cutting style on the report: Round brilliant

Certificate IGI LG813627814

Diamond specifications and retailer prices

From £153 GBP
As of November 3, 2026
Save £914 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,067 GBP at Brilliant Earth · As of November 4, 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 LG813627814 or 813627814. Listed at 22 retailers as of November 3, 2026, with prices from £153 to £1,067, a £914 spread on the same certified stone. Brilliant Earth lists it at £1,067. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813627814
Dimensions6.47 × 6.50 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.47 mm6.50 mm1.03 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813627814
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.1%

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 3
Current: £1,067 GBP|Low: £151 GBP|High: £1,111 GBP|Avg: £435 GBP|-4.0%
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 20£153 GBP
Retailer 6£177 GBP
Retailer 11£187 GBP
Retailer 7£189 GBP
Retailer 14£218 GBP
Retailer 17£253 GBP
Retailer 15£304 GBP
Retailer 8£311 GBP
Retailer 9£324 GBP
Retailer 2£344 GBP
Retailer 19£354 GBP
Retailer 12£363 GBP
Retailer 10£458 GBP
Retailer 18£458 GBP
Retailer 4£520 GBP
Retailer 3£607 GBP
Retailer 16£641 GBP
Retailer 21£647 GBP
Retailer 5£655 GBP
Retailer 13£880 GBP
Brilliant Earth£1,067 GBP

22 data points across 21 retailers

22 retailers£153 GBP to £1,067 GBP

A
Cheapest Retailer
-
£153 GBP
A
Retailer 2
-
£177 GBP
View
Retailer 3
-
£187 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
-
£189 GBP
View
A
Retailer 5
-
£218 GBP
View
A
Retailer 6
-
£253 GBP
View
A
Retailer 7
-
£304 GBP
View
A
Retailer 8
-
£311 GBP
View
A
Retailer 9
-
£324 GBP
View
B+
Retailer 10
-
£344 GBP
View
B+
Retailer 11
-
£354 GBP
View
B+
Retailer 12
-
£363 GBP
View
B+
Retailer 13
-
£458 GBP
View
Retailer 14
-
£458 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£520 GBP
View
B+
Retailer 16
-
£607 GBP
View
B
Retailer 17
-
£641 GBP
View
B
Retailer 18
-
£647 GBP
View
B
Retailer 19
-
£655 GBP
View
B
Retailer 20
-
£880 GBP
View
B
Retailer 21
-
£900 GBP
View
Most Expensive
B
Brilliant Earth
20617781A · Nov 4
£1,067 GBP
$1,440 USD
View
21 more retailers have this diamond
Prices start from £153 GBPSave up to £914 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
£153 GBP