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Round|Lab Grown|IGI

1.20ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG808614421

Shape and cutting style on the report: Round brilliant

Certificate IGI LG808614421

Diamond specifications and retailer prices

From £161 GBP
$216 USD
As of October 30, 2026
Save £1,003 GBP (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,164 GBP at Brilliant Earth · As of October 29, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG808614421 or 808614421. Listed at 23 retailers as of October 29, 2026, with prices from £161 to £1,164, a £1,003 spread on the same certified stone. Brilliant Earth lists it at £1,164. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808614421
Dimensions6.84 × 6.80 × 4.23 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
6.84 mm6.80 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808614421
Side View
Table 56.0%Crown 34.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.0%

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 30
Current: £1,164 GBP|Low: £114 GBP|High: £1,202 GBP|Avg: £511 GBP|-3.1%
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
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Retailer 16
October 30, 2026
Retailer 4£161 GBP
Retailer 6£178 GBP
Retailer 16£252 GBP
Retailer 10£304 GBP
Retailer 12£306 GBP
Retailer 9£323 GBP
Retailer 5£377 GBP
Retailer 3£417 GBP
Retailer 13£435 GBP
Retailer 2£451 GBP
Retailer 15£468 GBP
Retailer 7£613 GBP
Retailer 11£838 GBP
Retailer 8£873 GBP
Retailer 14£892 GBP
Brilliant Earth£1,164 GBP

35 data points across 16 retailers

23 retailers£161 GBP to £1,164 GBP

Retailer 1
-
£144 GBP
$193 USD
Price last confirmed 38 days ago
Retailer 2
-
£144 GBP
$193 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
£161 GBP
$216 USD
View
Final sale: no returns
Retailer 4
-
£166 GBP
$223 USD
View
Price last confirmed 38 days ago
Retailer 5
-
£176 GBP
$236 USD
View
Price last confirmed 36 days ago
Retailer 6
-
£178 GBP
$239 USD
View
Price last confirmed 18 days ago
Retailer 7
-
£178 GBP
$239 USD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
£252 GBP
$338 USD
View
A
Retailer 9
-
£304 GBP
€388 EUR
View
A
Retailer 10
-
£306 GBP
ZAR 6,626 ZAR
View
A
Retailer 11
-
£323 GBP
View
A
Retailer 12
-
£377 GBP
$505 USD
View
A
Retailer 13
-
£417 GBP
$559 USD
View
A
Retailer 14
-
£435 GBP
A$896 AUD
View
A
Retailer 15
-
£451 GBP
$604 USD
View
B+
Retailer 16
-
£468 GBP
$627 USD
View
Retailer 17
-
£573 GBP
$768 USD
View
Price last confirmed 34 days ago
Retailer 18
-
£573 GBP
$768 USD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
£613 GBP
$822 USD
View
B+
Retailer 20
-
£838 GBP
View
B
Retailer 21
-
£873 GBP
$1,170 USD
View
Retailer 22
-
£892 GBP
$1,195 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20536249A · Oct 29
£1,164 GBP
$1,560 USD
View
22 more retailers have this diamond
Prices start from £161 GBPSave up to £1,003 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
£161 GBP