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Round|Lab Grown|IGI

1.20ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG836610440

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836610440

Diamond specifications and retailer prices

From £207 GBP
$278 USD
As of October 29, 2026
Save £1,076 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,284 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct 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 LG836610440 or 836610440. Listed at 19 retailers as of October 29, 2026, with prices from £207 to £1,284, a £1,076 spread on the same certified stone. Brilliant Earth lists it at £1,284. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836610440
Dimensions6.85 × 6.90 × 4.17 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
6.85 mm6.90 mm1.20 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836610440
Side View
Table 59.0%Crown 35°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.6%

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: Oct 29
Current: £1,284 GBP|Low: £207 GBP|High: £1,284 GBP|Avg: £570 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 14£207 GBP
Retailer 18£232 GBP
Retailer 9£240 GBP
Retailer 8£257 GBP
Retailer 19£362 GBP
Retailer 5£377 GBP
Retailer 12£416 GBP
Retailer 15£423 GBP
Retailer 3£442 GBP
Retailer 13£452 GBP
Retailer 6£490 GBP
Retailer 17£499 GBP
Retailer 10£572 GBP
Retailer 2£651 GBP
Retailer 7£827 GBP
Retailer 11£865 GBP
Retailer 16£1,037 GBP
Retailer 4£1,077 GBP
Brilliant Earth£1,284 GBP

5 data points across 19 retailers

19 retailers£207 GBP to £1,284 GBP

A
Cheapest Retailer
-
£207 GBP
$278 USD
A
Retailer 2
-
£232 GBP
$311 USD
View
Final sale: no returns
A
Retailer 3
-
£240 GBP
$322 USD
View
A
Retailer 4
-
£257 GBP
$345 USD
View
A
Retailer 5
-
£362 GBP
$485 USD
View
A
Retailer 6
-
£377 GBP
$505 USD
View
A
Retailer 7
-
£416 GBP
View
A
Retailer 8
-
£423 GBP
€540 EUR
View
A
Retailer 9
-
£442 GBP
ZAR 9,569 ZAR
View
A
Retailer 10
-
£452 GBP
View
B+
Retailer 11
-
£490 GBP
$657 USD
View
B+
Retailer 12
-
£499 GBP
$668 USD
View
B+
Retailer 13
-
£572 GBP
$767 USD
View
B+
Retailer 14
-
£651 GBP
$872 USD
View
B
Retailer 15
-
£827 GBP
$1,108 USD
View
B
Retailer 16
-
£865 GBP
$1,159 USD
View
B
Retailer 17
-
£1,037 GBP
View
B
Retailer 18
-
£1,077 GBP
$1,443 USD
View
Most Expensive
B
Brilliant Earth
22318597A · Oct 30
£1,284 GBP
$1,720 USD
View
18 more retailers have this diamond
Prices start from £207 GBPSave up to £1,076 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
1.20ct Round
£207 GBP