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Round|Lab Grown|IGI

1.05ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG798612075

Shape and cutting style on the report: Round brilliant

Certificate IGI LG798612075

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of November 1, 2026
Save £703 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £850 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG798612075 or 798612075. Listed at 25 retailers as of October 31, 2026, with prices from £147 to £850, a £703 spread on the same certified stone. Brilliant Earth lists it at £850. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798612075
Dimensions6.51 × 6.46 × 4.01 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
6.51 mm6.46 mm1.05 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798612075
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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: £850 GBP|Low: £147 GBP|High: £1,028 GBP|Avg: £382 GBP|-17.4%
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
November 2, 2026
Retailer 5£147 GBP
Retailer 7£164 GBP
Retailer 3£231 GBP
Retailer 2£264 GBP
Retailer 13£282 GBP
Retailer 10£283 GBP
Retailer 8£293 GBP
Retailer 6£341 GBP
Retailer 15£359 GBP
Retailer 9£399 GBP
Retailer 4£399 GBP
Retailer 12£408 GBP
Retailer 14£678 GBP
Retailer 11£766 GBP
Brilliant Earth£850 GBP

41 data points across 15 retailers

25 retailers£147 GBP to £850 GBP

Retailer 1
-
£132 GBP
$177 USD
Price last confirmed 37 days ago
Retailer 2
-
£132 GBP
$177 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
£147 GBP
$197 USD
View
Final sale: no returns
Retailer 4
-
£153 GBP
$205 USD
View
Price last confirmed 41 days ago
Retailer 5
-
£153 GBP
$205 USD
View
Price last confirmed 24 days ago
Retailer 6
-
£162 GBP
$217 USD
View
Price last confirmed 37 days ago
Retailer 7
-
£164 GBP
$220 USD
View
Price last confirmed 21 days ago
Retailer 8
-
£164 GBP
$220 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
£231 GBP
$310 USD
View
A
Retailer 10
-
£264 GBP
View
A
Retailer 11
-
£282 GBP
€361 EUR
View
A
Retailer 12
-
£283 GBP
ZAR 6,126 ZAR
View
A
Retailer 13
-
£293 GBP
View
B+
Retailer 14
-
£341 GBP
$458 USD
View
B+
Retailer 15
-
£359 GBP
$482 USD
View
B+
Retailer 16
-
£399 GBP
A$824 AUD
View
B+
Retailer 17
-
£399 GBP
$536 USD
View
B+
Retailer 18
-
£408 GBP
$547 USD
View
Retailer 19
-
£526 GBP
$706 USD
View
Price last confirmed 33 days ago
Retailer 20
-
£526 GBP
$706 USD
View
Price last confirmed 37 days ago
B
Retailer 21
-
£567 GBP
$761 USD
View
B
Retailer 22
-
£678 GBP
$910 USD
View
B
Retailer 23
-
£766 GBP
View
B
Retailer 24
-
£835 GBP
$1,121 USD
View
Most Expensive
B
Brilliant Earth
20269541A · Oct 31
£850 GBP
$1,140 USD
View
24 more retailers have this diamond
Prices start from £147 GBPSave up to £703 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
£147 GBP