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Oval|Lab Grown|IGI

1.21ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG714504670

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG714504670

Diamond specifications and retailer prices

From £177 GBP
$236 USD
As of October 29, 2026
Save £1,452 GBP (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,630 GBP at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG714504670 or 714504670. Listed at 24 retailers as of October 29, 2026, with prices from £177 to £1,630, a £1,452 spread on the same certified stone. Brilliant Earth lists it at £1,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG714504670
Dimensions6.13 × 6.13 × 3.76 mm
L/W Ratio1.00
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
6.13 mm6.13 mm1.21 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG714504670
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

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 29
Current: £1,630 GBP|Low: £176 GBP|High: £1,630 GBP|Avg: £573 GBP
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 11£177 GBP
Retailer 20£197 GBP
Retailer 19£205 GBP
Retailer 6£219 GBP
Retailer 14£219 GBP
Retailer 7£370 GBP
Retailer 15£377 GBP
Retailer 5£399 GBP
Retailer 17£412 GBP
Retailer 13£415 GBP
Retailer 21£438 GBP
Retailer 16£535 GBP
Retailer 9£577 GBP
Retailer 4£586 GBP
Retailer 10£705 GBP
Retailer 12£744 GBP
Retailer 18£880 GBP
Retailer 2£897 GBP
Retailer 8£982 GBP
Retailer 3£1,111 GBP
Brilliant Earth£1,630 GBP

39 data points across 21 retailers

24 retailers£177 GBP to £1,630 GBP

Retailer 1
-
£176 GBP
$234 USD
Price last confirmed 38 days ago
A
Retailer 2
-
£177 GBP
$236 USD
View
A
Retailer 3
-
£197 GBP
$263 USD
View
Final sale: no returns
A
Retailer 4
-
£205 GBP
$273 USD
View
Retailer 5
-
£215 GBP
$286 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
£219 GBP
$292 USD
View
A
Retailer 7
-
£219 GBP
$292 USD
View
A
Retailer 8
-
£370 GBP
$493 USD
View
A
Retailer 9
-
£377 GBP
ZAR 8,108 ZAR
View
A
Retailer 10
-
£399 GBP
$532 USD
View
A
Retailer 11
-
£412 GBP
€522 EUR
View
A
Retailer 12
-
£415 GBP
View
A
Retailer 13
-
£438 GBP
A$898 AUD
View
B+
Retailer 14
-
£535 GBP
A$1,096 AUD
View
B+
Retailer 15
-
£577 GBP
$768 USD
View
B+
Retailer 16
-
£586 GBP
$781 USD
View
B+
Retailer 17
-
£705 GBP
$939 USD
View
B+
Retailer 18
-
£744 GBP
$991 USD
View
B+
Retailer 19
-
£800 GBP
$1,065 USD
View
B+
Retailer 20
-
£880 GBP
View
B+
Retailer 21
-
£897 GBP
A$1,837 AUD
View
B
Retailer 22
-
£982 GBP
$1,307 USD
View
Retailer 23
-
£1,111 GBP
$1,480 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
15878832A · Oct 29
£1,630 GBP
$2,170 USD
View
23 more retailers have this diamond
Prices start from £177 GBPSave up to £1,452 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
£177 GBP