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Radiant|Lab Grown|IGI

2.57ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG690511152

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

Certificate IGI LG690511152

Diamond specifications and retailer prices

From $2,457 CAD
$1,759 USD
As of October 31, 2026
Save $6,137 CAD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,594 CAD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 LG690511152 or 690511152. Listed at 7 retailers as of October 31, 2026, with prices from $2,457 to $8,594, a $6,137 spread on the same certified stone. Taylor and Hart lists it at $8,594. 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 angle42.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG690511152
Dimensions9.78 × 6.62 × 4.62 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.78 mm6.62 mm2.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG690511152
Side View
Table 65.0%Crown 42.1°Girdle: MediumPavilion 35.1°Culet: NoneDepth 69.8%

Caratlytics Score

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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 31
Current: $3,412 CAD|Low: $2,324 CAD|High: $8,594 CAD|Avg: $4,725 CAD|+8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 28, 2026
Retailer 6$2,457 CAD
Retailer 5$2,593 CAD
Retailer 1$3,412 CAD
Retailer 4$3,480 CAD
Retailer 2$5,825 CAD
Retailer 3$6,979 CAD
Taylor and Hart$8,594 CAD

26 data points across 7 retailers

7 retailers$2,457 CAD to $8,594 CAD

A
Cheapest Retailer
-
$2,457 CAD
$1,759 USD
A
Retailer 2
-
$2,593 CAD
$1,856 USD
View
A
Retailer 3
-
$3,412 CAD
£1,923 GBP
View
A
Retailer 4
-
$3,480 CAD
$2,491 USD
View
Retailer 5
-
$5,825 CAD
$4,170 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$6,979 CAD
£3,934 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Taylor and Hart
MN2IATT · Oct 31
$8,594 CAD
$6,152 USD
View
6 more retailers have this diamond
Prices start from $2,457 CADSave up to $6,137 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
$2,457 CAD