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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 $1,221 NZD
$686 USD
As of October 26, 2026
Save $18,649 NZD (94%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,870 NZD 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 $1,221 to $19,870, a $18,649 spread on the same certified stone. Brilliant Earth lists it at $19,870. 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: $19,870 NZD|Low: $1,221 NZD|High: $19,870 NZD|Avg: $6,095 NZD
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$1,221 NZD
Retailer 3$1,328 NZD
Retailer 11$1,784 NZD
Retailer 2$1,807 NZD
Retailer 10$2,302 NZD
Retailer 14$2,627 NZD
Retailer 8$2,981 NZD
Retailer 13$3,616 NZD
Retailer 4$4,172 NZD
Retailer 16$4,394 NZD
Retailer 5$4,615 NZD
Retailer 15$5,868 NZD
Retailer 6$10,345 NZD
Retailer 12$10,843 NZD
Retailer 7$11,324 NZD
Brilliant Earth$19,870 NZD

37 data points across 16 retailers

16 retailers$1,221 NZD to $19,870 NZD

A
Cheapest Retailer
-
$1,221 NZD
$686 USD
A
Retailer 2
-
$1,328 NZD
$746 USD
View
A
Retailer 3
-
$1,784 NZD
$1,002 USD
View
A
Retailer 4
-
$1,807 NZD
$1,015 USD
View
A
Retailer 5
-
$2,302 NZD
$1,293 USD
View
A
Retailer 6
-
$2,627 NZD
€1,405 EUR
View
A
Retailer 7
-
$2,981 NZD
$1,674 USD
View
Final sale: no returns
A
Retailer 8
-
$3,616 NZD
$2,031 USD
View
A
Retailer 9
-
$4,172 NZD
$2,343 USD
View
A
Retailer 10
-
$4,394 NZD
$2,468 USD
View
A
Retailer 11
-
$4,615 NZD
$2,592 USD
View
B+
Retailer 12
-
$5,868 NZD
£2,595 GBP
View
B+
Retailer 13
-
$10,345 NZD
$5,810 USD
View
B
Retailer 14
-
$10,843 NZD
$6,090 USD
View
B
Retailer 15
-
$11,324 NZD
$6,360 USD
View
Most Expensive
B
Brilliant Earth
18494822Y · Oct 29
$19,870 NZD
$11,160 USD
View
15 more retailers have this diamond
Prices start from $1,221 NZDSave up to $18,649 NZD

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
$1,221 NZD