Oval|Lab Grown|IGI

2.57ct F IF Oval Lab Grown Diamond

ID • F/IF • IGI LG809650651

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG809650651

Diamond specifications and retailer prices

From $819 USD
As of November 1, 2026
Save $4,381 USD (84%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,200 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 2.57ct lab-grown oval diamond

This 2.57ct lab-grown oval sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG809650651 or 809650651. Listed at 25 retailers as of November 1, 2026, with prices from $819 to $5,200, a $4,381 spread on the same certified stone. Brilliant Earth lists it at $5,200. 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

2.57
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809650651
Dimensions11.19 × 7.59 × 4.73 mm
L/W Ratio1.47
Girdle conditionFaceted
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
11.19 mm7.59 mm2.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809650651
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $5,200 USD|Low: $750 USD|High: $5,380 USD|Avg: $2,154 USD|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
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Retailer 19
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Retailer 21
November 2, 2026
Retailer 10$782 USD
Retailer 4$819 USD
Retailer 12$907 USD
Retailer 14$907 USD
Retailer 17$1,000 USD
Retailer 7$1,204 USD
Retailer 6$1,275 USD
Retailer 15$1,347 USD
Retailer 2$1,361 USD
Retailer 18$1,886 USD
Retailer 16$2,014 USD
Retailer 21$2,095 USD
Retailer 5$2,158 USD
Retailer 19$2,188 USD
Retailer 11$2,549 USD
Retailer 3$2,867 USD
Retailer 20$2,889 USD
Retailer 8$2,924 USD
Retailer 13$3,331 USD
Retailer 9$4,100 USD
Brilliant Earth$5,200 USD

37 data points across 21 retailers

25 retailers$819 USD to $5,200 USD

Retailer 1
-
$782 USD
Price last confirmed 22 days ago
Retailer 2
-
$817 USD
View
Price last confirmed 40 days ago
A
Retailer 3
-
$819 USD
View
Final sale: no returns
Retailer 4
-
$889 USD
View
Price last confirmed 37 days ago
Retailer 5
-
$907 USD
View
Price last confirmed 30 days ago
Retailer 6
-
$907 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$935 USD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$1,000 USD
View
A
Retailer 9
-
$1,204 USD
View
A
Retailer 10
-
$1,275 USD
View
A
Retailer 11
-
$1,347 USD
€1,283 EUR
View
A
Retailer 12
-
$1,361 USD
£1,072 GBP
View
A
Retailer 13
-
$1,886 USD
View
B+
Retailer 14
-
$2,014 USD
A$3,098 AUD
View
B+
Retailer 15
-
$2,095 USD
View
B+
Retailer 16
-
$2,158 USD
View
B+
Retailer 17
-
$2,188 USD
ZAR 35,354 ZAR
View
Retailer 18
-
$2,549 USD
View
Price last confirmed 26 days ago
B+
Retailer 19
-
$2,752 USD
View
B+
Retailer 20
-
$2,867 USD
View
B+
Retailer 21
-
$2,889 USD
View
B+
Retailer 22
-
$2,924 USD
View
B+
Retailer 23
-
$3,331 USD
£2,623 GBP
View
B
Retailer 24
-
$4,100 USD
View
Most Expensive
B
Brilliant Earth
20535768A · Nov 2
$5,200 USD
View
24 more retailers have this diamond
Prices start from $819 USDSave up to $4,381 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
2.57ct Oval
$819 USD