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Oval|Lab Grown|IGI

1.20ct F IF Oval Lab Grown Diamond

EX • F/IF • IGI LG761529505

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG761529505

Diamond specifications and retailer prices

From £171 GBP
As of November 3, 2026
Save £1,211 GBP (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,382 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown oval diamond

This 1.2ct lab-grown oval 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 LG761529505 or 761529505. Listed at 21 retailers as of November 3, 2026, with prices from £171 to £1,382, a £1,211 spread on the same certified stone. Brilliant Earth lists it at £1,382. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761529505
Dimensions8.87 × 8.53 × 3.69 mm
L/W Ratio1.04
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
8.87 mm8.53 mm1.20 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761529505
Side View
Table 60.0%Crown 36.3°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 62.9%

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 3
Current: £1,382 GBP|Low: £164 GBP|High: £1,382 GBP|Avg: £493 GBP|+3.3%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 5, 2026
Retailer 16£171 GBP
Retailer 7£192 GBP
Retailer 5£198 GBP
Retailer 9£212 GBP
Retailer 17£212 GBP
Retailer 13£353 GBP
Retailer 3£360 GBP
Retailer 12£366 GBP
Retailer 6£391 GBP
Retailer 2£393 GBP
Retailer 14£517 GBP
Retailer 4£683 GBP
Retailer 15£685 GBP
Retailer 8£826 GBP
Retailer 10£848 GBP
Retailer 11£955 GBP
Brilliant Earth£1,382 GBP

44 data points across 17 retailers

21 retailers£171 GBP to £1,382 GBP

A
Cheapest Retailer
-
£171 GBP
A
Retailer 2
-
£192 GBP
View
Final sale: no returns
A
Retailer 3
-
£198 GBP
View
Retailer 4
-
£212 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
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£212 GBP
View
A
Retailer 6
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£238 GBP
View
A
Retailer 7
-
£353 GBP
View
A
Retailer 8
-
£360 GBP
View
A
Retailer 9
-
£366 GBP
View
A
Retailer 10
-
£391 GBP
View
A
Retailer 11
-
£393 GBP
View
Retailer 12
-
£517 GBP
View
Price last confirmed 9 days ago
B+
Retailer 13
-
£587 GBP
View
B+
Retailer 14
-
£683 GBP
View
B+
Retailer 15
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£685 GBP
View
B+
Retailer 16
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£687 GBP
View
B+
Retailer 17
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£721 GBP
View
B+
Retailer 18
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£826 GBP
View
B+
Retailer 19
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£848 GBP
View
B
Retailer 20
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£955 GBP
View
Most Expensive
B
Brilliant Earth
19055595A · Nov 4
£1,382 GBP
$1,860 USD
View
20 more retailers have this diamond
Prices start from £171 GBPSave up to £1,211 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 Oval
£171 GBP