CaratHunter
Plans
Radiant|Lab Grown|IGI

2.57ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG840652908

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG840652908

Diamond specifications and retailer prices

From $700 CAD
$501 USD
As of November 1, 2026
Save $4,860 CAD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,825 CAD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant 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 LG840652908 or 840652908. Listed at 16 retailers as of October 31, 2026, with a 694% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840652908
Dimensions8.94 × 7.22 × 4.75 mm
L/W Ratio1.24
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
8.94 mm7.22 mm2.57 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840652908
Side View
Table 64.0%Crown 40.3°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 65.8%

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: Nov 1
Current: $5,825 CAD|Low: $700 CAD|High: $5,825 CAD|Avg: $2,534 CAD
Rare Carat
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
November 2, 2026
Retailer 3$700 CAD
Retailer 10$906 CAD
Retailer 4$1,030 CAD
Retailer 12$1,041 CAD
Retailer 2$1,425 CAD
Retailer 14$1,901 CAD
Retailer 13$1,967 CAD
Retailer 15$2,067 CAD
Retailer 7$2,193 CAD
Retailer 5$2,904 CAD
Retailer 8$2,954 CAD
Retailer 6$2,998 CAD
Retailer 9$3,577 CAD
Retailer 11$4,375 CAD
Retailer 16$5,560 CAD
Rare Carat$5,825 CAD

13 data points across 16 retailers

16 retailers$700 CAD to $5,560 CAD

A
Cheapest Retailer
-
$700 CAD
$501 USD
Final sale: no returns
A
Retailer 2
-
$906 CAD
£511 GBP
View
B+
Retailer 3
-
$1,030 CAD
$737 USD
View
A
Retailer 4
-
$1,041 CAD
$745 USD
View
A
Retailer 5
-
$1,425 CAD
£803 GBP
View
A
Retailer 6
-
$1,901 CAD
A$2,094 AUD
View
A
Retailer 7
-
$1,967 CAD
$1,408 USD
View
A
Retailer 8
-
$2,067 CAD
ZAR 23,904 ZAR
View
A
Retailer 9
-
$2,193 CAD
$1,570 USD
View
A
Retailer 10
-
$2,904 CAD
$2,079 USD
View
A
Retailer 11
-
$2,954 CAD
$2,115 USD
View
A
Retailer 12
-
$2,998 CAD
SGD 2,900 SGD
View
B+
Retailer 13
-
$3,577 CAD
£2,016 GBP
View
B+
Retailer 14
-
$4,375 CAD
A$4,818 AUD
View
B
Retailer 15
-
$5,560 CAD
$3,980 USD
View
Most Expensive
Rare Carat
LA2653 · Oct 21
$5,825 CAD
$4,170 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $700 CADSave up to $4,860 CAD

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 Radiant
$700 CAD