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Oval|Lab Grown|IGI

1.21ct F IF Oval Lab Grown Diamond

EX • F/IF • IGI LG793623649

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG793623649

Diamond specifications and retailer prices

From £176 GBP
As of November 4, 2026
Save £1,124 GBP (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,300 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown oval diamond

This 1.21ct 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 LG793623649 or 793623649. Listed at 23 retailers as of November 4, 2026, with prices from £176 to £1,300, a £1,124 spread on the same certified stone. Brilliant Earth lists it at £1,300. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793623649
Dimensions8.66 × 5.94 × 3.73 mm
L/W Ratio1.46
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
8.66 mm5.94 mm1.21 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793623649
Side View
Table 56.0%Crown 33.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,300 GBP|Low: £176 GBP|High: £1,300 GBP|Avg: £512 GBP
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
Retailer 15
November 5, 2026
Retailer 4£176 GBP
Retailer 6£195 GBP
Retailer 15£275 GBP
Retailer 11£328 GBP
Retailer 10£337 GBP
Retailer 2£357 GBP
Retailer 5£418 GBP
Retailer 3£432 GBP
Retailer 9£477 GBP
Retailer 12£502 GBP
Retailer 14£591 GBP
Retailer 7£666 GBP
Retailer 13£785 GBP
Retailer 8£925 GBP
Brilliant Earth£1,300 GBP

37 data points across 15 retailers

23 retailers£176 GBP to £1,300 GBP

Retailer 1
-
£158 GBP
Price last confirmed 43 days ago
Retailer 2
-
£158 GBP
View
Price last confirmed 26 days ago
A
Retailer 3
-
£176 GBP
View
Final sale: no returns
Retailer 4
-
£183 GBP
View
Price last confirmed 41 days ago
Retailer 5
-
£192 GBP
View
Price last confirmed 41 days ago
Retailer 6
-
£195 GBP
View
Price last confirmed 24 days ago
Retailer 7
-
£195 GBP
View
Price last confirmed 34 days ago
A
Retailer 8
-
£275 GBP
View
A
Retailer 9
-
£328 GBP
View
A
Retailer 10
-
£337 GBP
View
A
Retailer 11
-
£357 GBP
View
A
Retailer 12
-
£418 GBP
View
A
Retailer 13
-
£432 GBP
View
A
Retailer 14
-
£477 GBP
View
A
Retailer 15
-
£502 GBP
View
B+
Retailer 16
-
£591 GBP
View
Retailer 17
-
£628 GBP
View
Price last confirmed 29 days ago
Retailer 18
-
£629 GBP
View
Price last confirmed 10 days ago
B+
Retailer 19
-
£666 GBP
View
Retailer 20
-
£785 GBP
View
Price last confirmed 7 days ago
B
Retailer 21
-
£915 GBP
View
B
Retailer 22
-
£925 GBP
View
Most Expensive
B
Brilliant Earth
18988529A · Nov 4
£1,300 GBP
$1,750 USD
View
22 more retailers have this diamond
Prices start from £176 GBPSave up to £1,124 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
1.21ct Oval
£176 GBP