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Round|Lab Grown|IGI

1.00ct F IF Round Lab Grown Diamond

EX • F/IF • IGI LG809680240

Shape and cutting style on the report: Round brilliant

Certificate IGI LG809680240

Diamond specifications and retailer prices

From £149 GBP
As of November 3, 2026
Save £896 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,044 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1ct lab-grown round diamond

This 1ct 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 LG809680240 or 809680240. Listed at 21 retailers as of November 3, 2026, with prices from £149 to £1,044, a £896 spread on the same certified stone. Brilliant Earth lists it at £1,044. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809680240
Dimensions6.30 × 6.35 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.30 mm6.35 mm1.00 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809680240
Side View
Table 56.0%Crown 35.7°Girdle: Slightly ThickPavilion 40.9°Culet: NoneDepth 63.7%

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: Nov 3
Current: £1,044 GBP|Low: £147 GBP|High: £1,133 GBP|Avg: £451 GBP|-7.8%
Brilliant Earth
Retailer 2
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Retailer 20
November 5, 2026
Retailer 17£149 GBP
Retailer 4£173 GBP
Retailer 10£183 GBP
Retailer 5£184 GBP
Retailer 12£208 GBP
Retailer 14£248 GBP
Retailer 7£304 GBP
Retailer 8£316 GBP
Retailer 2£333 GBP
Retailer 16£336 GBP
Retailer 11£358 GBP
Retailer 15£444 GBP
Retailer 6£445 GBP
Retailer 20£506 GBP
Retailer 19£592 GBP
Retailer 13£622 GBP
Retailer 18£631 GBP
Retailer 3£636 GBP
Retailer 9£855 GBP
Brilliant Earth£1,044 GBP

32 data points across 20 retailers

21 retailers£149 GBP to £1,044 GBP

A
Cheapest Retailer
-
£149 GBP
A
Retailer 2
-
£173 GBP
View
Retailer 3
-
£183 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
-
£184 GBP
View
A
Retailer 5
-
£208 GBP
View
A
Retailer 6
-
£248 GBP
View
A
Retailer 7
-
£304 GBP
View
A
Retailer 8
-
£316 GBP
View
B+
Retailer 9
-
£333 GBP
View
A
Retailer 10
-
£336 GBP
View
B+
Retailer 11
-
£358 GBP
View
B+
Retailer 12
-
£444 GBP
View
B+
Retailer 13
-
£445 GBP
View
B+
Retailer 14
-
£506 GBP
View
B+
Retailer 15
-
£592 GBP
View
B
Retailer 16
-
£622 GBP
View
B
Retailer 17
-
£631 GBP
View
B
Retailer 18
-
£636 GBP
View
B
Retailer 19
-
£855 GBP
View
B
Retailer 20
-
£874 GBP
View
Most Expensive
B
Brilliant Earth
20615398A · Nov 4
£1,044 GBP
$1,410 USD
View
20 more retailers have this diamond
Prices start from £149 GBPSave up to £896 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
1.00ct Round
£149 GBP