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Round|Lab Grown|IGI

1.09ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG780663752

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780663752

Diamond specifications and retailer prices

From £319 GBP
$428 USD
As of October 30, 2026
Save £714 GBP (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,033 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663752 or 780663752. Listed at 14 retailers as of October 29, 2026, with prices from £319 to £1,033, a £714 spread on the same certified stone. MOH London lists it at £1,033. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663752
Dimensions6.59 × 6.64 × 4.06 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
6.59 mm6.64 mm1.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663752
Side View
Table 59.0%Crown 34.9°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.5%

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: Oct 30
Current: £1,033 GBP|Low: £313 GBP|High: £1,172 GBP|Avg: £650 GBP|-4.8%
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
October 31, 2026
Retailer 3£319 GBP
Retailer 11£353 GBP
Retailer 5£362 GBP
Retailer 12£416 GBP
Retailer 2£423 GBP
Retailer 9£441 GBP
Retailer 7£450 GBP
Retailer 6£528 GBP
Retailer 14£573 GBP
Retailer 10£795 GBP
Retailer 4£949 GBP
Retailer 8£993 GBP
Retailer 13£1,005 GBP
MOH London£1,033 GBP

41 data points across 14 retailers

14 retailers£319 GBP to £1,033 GBP

A
Cheapest Retailer
-
£319 GBP
$428 USD
A
Retailer 2
-
£353 GBP
HK$3,700 HKD
View
A
Retailer 3
-
£362 GBP
$485 USD
View
A
Retailer 4
-
£416 GBP
$558 USD
View
A
Retailer 5
-
£423 GBP
€540 EUR
View
A
Retailer 6
-
£441 GBP
ZAR 9,537 ZAR
View
A
Retailer 7
-
£450 GBP
View
B+
Retailer 8
-
£528 GBP
A$1,088 AUD
View
B+
Retailer 9
-
£573 GBP
$767 USD
View
B
Retailer 10
-
£795 GBP
$1,065 USD
View
B
Retailer 11
-
£949 GBP
$1,271 USD
View
B
Retailer 12
-
£993 GBP
$1,330 USD
View
B
Retailer 13
-
£1,005 GBP
$1,346 USD
View
Most Expensive
B
MOH London
LG780663752 · Oct 29
£1,033 GBP
View
13 more retailers have this diamond
Prices start from £319 GBPSave up to £714 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
1.09ct Round
£319 GBP