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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 $686 USD
As of October 29, 2026
Save $5,894 USD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,580 USD at Brilliant Earth · As of October 30, 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 29, 2026, with prices from $686 to $6,580, a $5,894 spread on the same certified stone. Brilliant Earth lists it at $6,580. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,580 USD|Low: $686 USD|High: $11,160 USD|Avg: $3,420 USD|-41.0%
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 30, 2026
Retailer 9$686 USD
Retailer 3$746 USD
Retailer 11$1,002 USD
Retailer 2$1,015 USD
Retailer 10$1,293 USD
Retailer 14$1,475 USD
Retailer 8$1,674 USD
Retailer 13$2,031 USD
Retailer 4$2,343 USD
Retailer 16$2,468 USD
Retailer 5$2,592 USD
Retailer 15$3,296 USD
Retailer 6$5,810 USD
Retailer 12$6,090 USD
Retailer 7$6,360 USD
Brilliant Earth$6,580 USD

36 data points across 16 retailers

16 retailers$686 USD to $6,580 USD

A
Cheapest Retailer
-
$686 USD
A
Retailer 2
-
$746 USD
View
A
Retailer 3
-
$1,002 USD
View
A
Retailer 4
-
$1,015 USD
View
A
Retailer 5
-
$1,293 USD
View
A
Retailer 6
-
$1,475 USD
€1,405 EUR
View
A
Retailer 7
-
$1,674 USD
View
Final sale: no returns
A
Retailer 8
-
$2,031 USD
View
A
Retailer 9
-
$2,343 USD
View
A
Retailer 10
-
$2,468 USD
View
A
Retailer 11
-
$2,592 USD
View
B+
Retailer 12
-
$3,296 USD
£2,595 GBP
View
B
Retailer 13
-
$5,810 USD
View
B
Retailer 14
-
$6,090 USD
View
B
Retailer 15
-
$6,360 USD
View
Most Expensive
B
Brilliant Earth
18494822Y · Oct 30
$6,580 USD
View
15 more retailers have this diamond
Prices start from $686 USDSave up to $5,894 USD

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
$686 USD