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Round|Lab Grown|IGI

1.05ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG576351378

Shape and cutting style on the report: Round brilliant

Certificate IGI LG576351378

Diamond specifications and retailer prices

From £153 GBP
$205 USD
As of October 29, 2026
Save £733 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £886 GBP at MOH London · As of November 1, 2026
View at MOH London

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 LG576351378 or 576351378. Listed at 19 retailers as of October 29, 2026, with prices from £153 to £886, a £733 spread on the same certified stone. MOH London lists it at £886. 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°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG576351378
Dimensions6.55 × 6.51 × 4.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.55 mm6.51 mm1.05 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG576351378
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 61.5%

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: Oct 29
Current: £886 GBP|Low: £147 GBP|High: £897 GBP|Avg: £349 GBP
MOH London
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
November 2, 2026
Retailer 11£153 GBP
Retailer 14£171 GBP
Retailer 5£177 GBP
Retailer 6£190 GBP
Retailer 13£190 GBP
Retailer 12£267 GBP
Retailer 8£327 GBP
Retailer 2£334 GBP
Retailer 7£345 GBP
Retailer 3£366 GBP
Retailer 9£463 GBP
Retailer 4£609 GBP
Retailer 10£611 GBP
MOH London£886 GBP

43 data points across 14 retailers

19 retailers£153 GBP to £886 GBP

A
Cheapest Retailer
-
£153 GBP
$205 USD
A
Retailer 2
-
£171 GBP
$229 USD
View
Final sale: no returns
A
Retailer 3
-
£177 GBP
$237 USD
View
Retailer 4
-
£190 GBP
$254 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£190 GBP
$254 USD
View
A
Retailer 6
-
£210 GBP
HK$2,200 HKD
View
A
Retailer 7
-
£267 GBP
$358 USD
View
A
Retailer 8
-
£327 GBP
ZAR 7,079 ZAR
View
A
Retailer 9
-
£334 GBP
€426 EUR
View
B+
Retailer 10
-
£345 GBP
View
B+
Retailer 11
-
£366 GBP
$491 USD
View
B+
Retailer 12
-
£368 GBP
$493 USD
View
B+
Retailer 13
-
£463 GBP
A$954 AUD
View
B+
Retailer 14
-
£514 GBP
SGD 930 SGD
View
B
Retailer 15
-
£609 GBP
$816 USD
View
B
Retailer 16
-
£611 GBP
$819 USD
View
B
Retailer 17
-
£649 GBP
$869 USD
View
Retailer 18
-
£746 GBP
$999 USD
View
Price last confirmed 91 days ago
Most Expensive
B
MOH London
LG576351378 · Nov 1
£886 GBP
View
18 more retailers have this diamond
Prices start from £153 GBPSave up to £733 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
£153 GBP