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Oval|Lab Grown|IGI

1.31ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG818672344

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818672344

Diamond specifications and retailer prices

From £273 GBP
$364 USD
As of October 29, 2026
Save £2,310 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,583 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.31ct lab-grown oval diamond

This 1.31ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818672344 or 818672344. Listed at 21 retailers as of October 29, 2026, with prices from £273 to £2,583, a £2,310 spread on the same certified stone. Brilliant Earth lists it at £2,583. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818672344
Dimensions8.86 × 6.07 × 3.83 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.86 mm6.07 mm1.31 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818672344
Side View
Table 59.0%Crown 35.2°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 63.1%

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: £2,583 GBP|Low: £263 GBP|High: £2,666 GBP|Avg: £890 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
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 19£273 GBP
Retailer 4£317 GBP
Retailer 7£339 GBP
Retailer 10£339 GBP
Retailer 14£351 GBP
Retailer 13£451 GBP
Retailer 8£542 GBP
Retailer 16£567 GBP
Retailer 12£583 GBP
Retailer 2£610 GBP
Retailer 5£709 GBP
Retailer 18£848 GBP
Retailer 9£1,090 GBP
Retailer 6£1,120 GBP
Retailer 3£1,143 GBP
Retailer 11£1,316 GBP
Retailer 15£1,327 GBP
Retailer 17£1,949 GBP
Brilliant Earth£2,583 GBP

36 data points across 19 retailers

21 retailers£273 GBP to £2,583 GBP

A
Cheapest Retailer
-
£273 GBP
$364 USD
A
Retailer 2
-
£317 GBP
$422 USD
View
A
Retailer 3
-
£339 GBP
$452 USD
View
A
Retailer 4
-
£339 GBP
$452 USD
View
A
Retailer 5
-
£351 GBP
$468 USD
View
Final sale: no returns
A
Retailer 6
-
£451 GBP
$600 USD
View
A
Retailer 7
-
£542 GBP
$722 USD
View
A
Retailer 8
-
£567 GBP
€719 EUR
View
B+
Retailer 9
-
£583 GBP
ZAR 12,536 ZAR
View
B+
Retailer 10
-
£610 GBP
View
B+
Retailer 11
-
£709 GBP
$944 USD
View
B+
Retailer 12
-
£848 GBP
$1,129 USD
View
B+
Retailer 13
-
£1,090 GBP
$1,452 USD
View
Retailer 14
-
£1,116 GBP
$1,486 USD
View
Price last confirmed 44 days ago
B+
Retailer 15
-
£1,120 GBP
$1,492 USD
View
B
Retailer 16
-
£1,143 GBP
$1,522 USD
View
B
Retailer 17
-
£1,310 GBP
SGD 2,358 SGD
View
B
Retailer 18
-
£1,316 GBP
View
B+
Retailer 19
-
£1,327 GBP
View
B
Retailer 20
-
£1,949 GBP
$2,595 USD
View
Most Expensive
B
Brilliant Earth
21418147A · Oct 29
£2,583 GBP
$3,440 USD
View
20 more retailers have this diamond
Prices start from £273 GBPSave up to £2,310 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
1.31ct Oval
£273 GBP