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Round|Lab Grown|IGI

1.05ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG825656762

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825656762

Diamond specifications and retailer prices

From £187 GBP
$251 USD
As of November 1, 2026
Save £774 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £961 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825656762 or 825656762. Listed at 16 retailers as of October 31, 2026, with prices from £187 to £961, a £774 spread on the same certified stone. Brilliant Earth lists it at £961. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825656762
Dimensions6.53 × 6.58 × 3.98 mm
L/W Ratio1.01
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
6.53 mm6.58 mm1.05 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825656762
Side View
Table 58.0%Crown 35.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.6%

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 1
Current: £961 GBP|Low: £165 GBP|High: £1,550 GBP|Avg: £501 GBP|-38.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 7£171 GBP
Retailer 3£187 GBP
Retailer 8£213 GBP
Retailer 9£213 GBP
Retailer 15£292 GBP
Retailer 2£335 GBP
Retailer 14£347 GBP
Retailer 11£358 GBP
Retailer 17£372 GBP
Retailer 10£385 GBP
Retailer 4£449 GBP
Retailer 13£537 GBP
Retailer 5£706 GBP
Retailer 6£734 GBP
Retailer 12£831 GBP
Retailer 16£947 GBP
Brilliant Earth£961 GBP

30 data points across 17 retailers

16 retailers£187 GBP to £961 GBP

A
Cheapest Retailer
-
£187 GBP
$251 USD
Final sale: no returns
Retailer 2
-
£213 GBP
$286 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£292 GBP
$392 USD
View
A
Retailer 4
-
£335 GBP
View
A
Retailer 5
-
£347 GBP
€444 EUR
View
A
Retailer 6
-
£358 GBP
ZAR 7,759 ZAR
View
B+
Retailer 7
-
£372 GBP
$499 USD
View
B+
Retailer 8
-
£385 GBP
View
B+
Retailer 9
-
£449 GBP
$602 USD
View
B+
Retailer 10
-
£537 GBP
$720 USD
View
Retailer 11
-
£684 GBP
$918 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
£706 GBP
$947 USD
View
B
Retailer 13
-
£734 GBP
$985 USD
View
B
Retailer 14
-
£831 GBP
View
B
Retailer 15
-
£947 GBP
$1,271 USD
View
Most Expensive
B
Brilliant Earth
21584300A · Oct 31
£961 GBP
$1,290 USD
View
15 more retailers have this diamond
Prices start from £187 GBPSave up to £774 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
1.05ct Round
£187 GBP