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Oval|Lab Grown|IGI

2.90ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG780665431

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780665431

Diamond specifications and retailer prices

From £515 GBP
$686 USD
As of October 26, 2026
Save £7,865 GBP (94%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £8,380 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.9ct lab-grown oval diamond

This 2.9ct lab-grown oval sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780665431 or 780665431. Listed at 16 retailers as of October 26, 2026, with prices from £515 to £8,380, a £7,865 spread on the same certified stone. Brilliant Earth lists it at £8,380. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.90
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665431
Dimensions11.45 × 7.70 × 5.05 mm
L/W Ratio1.49
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
11.45 mm7.70 mm2.90 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665431
Side View
Table 59.0%Crown 35.9°Girdle: STK-THKPavilion 41°Culet: NoneDepth 65.6%

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 26
Current: £8,380 GBP|Low: £515 GBP|High: £8,380 GBP|Avg: £2,571 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
Retailer 16
October 28, 2026
Retailer 9£515 GBP
Retailer 3£560 GBP
Retailer 11£752 GBP
Retailer 2£762 GBP
Retailer 10£971 GBP
Retailer 14£1,108 GBP
Retailer 8£1,257 GBP
Retailer 13£1,525 GBP
Retailer 4£1,759 GBP
Retailer 16£1,853 GBP
Retailer 5£1,946 GBP
Retailer 15£2,475 GBP
Retailer 6£4,363 GBP
Retailer 12£4,573 GBP
Retailer 7£4,776 GBP
Brilliant Earth£8,380 GBP

37 data points across 16 retailers

16 retailers£515 GBP to £8,380 GBP

A
Cheapest Retailer
-
£515 GBP
$686 USD
A
Retailer 2
-
£560 GBP
$746 USD
View
A
Retailer 3
-
£752 GBP
$1,002 USD
View
A
Retailer 4
-
£762 GBP
$1,015 USD
View
A
Retailer 5
-
£971 GBP
$1,293 USD
View
A
Retailer 6
-
£1,108 GBP
€1,405 EUR
View
A
Retailer 7
-
£1,257 GBP
$1,674 USD
View
Final sale: no returns
A
Retailer 8
-
£1,525 GBP
$2,031 USD
View
A
Retailer 9
-
£1,759 GBP
$2,343 USD
View
A
Retailer 10
-
£1,853 GBP
$2,468 USD
View
A
Retailer 11
-
£1,946 GBP
$2,592 USD
View
B+
Retailer 12
-
£2,475 GBP
View
B+
Retailer 13
-
£4,363 GBP
$5,810 USD
View
B
Retailer 14
-
£4,573 GBP
$6,090 USD
View
B
Retailer 15
-
£4,776 GBP
$6,360 USD
View
Most Expensive
B
Brilliant Earth
18494822Y · Oct 29
£8,380 GBP
$11,160 USD
View
15 more retailers have this diamond
Prices start from £515 GBPSave up to £7,865 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
2.90ct Oval
£515 GBP