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Marquise|Lab Grown|IGI

2.57ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG837640757

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837640757

Diamond specifications and retailer prices

From $1,543 CAD
$1,104 USD
As of November 1, 2026
Save $8,491 CAD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,033 CAD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 2.57ct lab-grown marquise diamond

This 2.57ct lab-grown marquise 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 LG837640757 or 837640757. Listed at 19 retailers as of November 1, 2026, with prices from $1,543 to $10,033, a $8,491 spread on the same certified stone. Brilliant Earth lists it at $10,033. 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 angle38.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837640757
Dimensions15.09 × 7.01 × 4.20 mm
L/W Ratio2.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.09 mm7.01 mm2.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837640757
Side View
Table 61.0%Crown 38.1°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 59.9%

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: Nov 1
Current: $10,033 CAD|Low: $1,543 CAD|High: $10,047 CAD|Avg: $4,050 CAD|-0.1%
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 3$1,543 CAD
Retailer 2$1,807 CAD
Retailer 6$1,845 CAD
Retailer 4$2,289 CAD
Retailer 17$2,425 CAD
Retailer 11$2,466 CAD
Retailer 7$3,049 CAD
Retailer 18$3,445 CAD
Retailer 14$3,795 CAD
Retailer 16$4,124 CAD
Retailer 9$4,408 CAD
Retailer 13$4,957 CAD
Retailer 12$5,422 CAD
Retailer 8$5,570 CAD
Retailer 5$5,764 CAD
Retailer 15$6,085 CAD
Retailer 10$6,177 CAD
Brilliant Earth$10,033 CAD

24 data points across 18 retailers

19 retailers$1,543 CAD to $10,033 CAD

A
Cheapest Retailer
-
$1,543 CAD
$1,104 USD
Final sale: no returns
A
Retailer 2
-
$1,807 CAD
£1,018 GBP
View
A
Retailer 3
-
$1,845 CAD
$1,320 USD
View
A
Retailer 4
-
$2,289 CAD
$1,638 USD
View
A
Retailer 5
-
$2,425 CAD
€1,653 EUR
View
A
Retailer 6
-
$2,466 CAD
£1,390 GBP
View
A
Retailer 7
-
$3,049 CAD
$2,182 USD
View
A
Retailer 8
-
$3,445 CAD
$2,465 USD
View
A
Retailer 9
-
$3,795 CAD
A$4,178 AUD
View
A
Retailer 10
-
$4,124 CAD
ZAR 47,676 ZAR
View
B+
Retailer 11
-
$4,408 CAD
£2,484 GBP
View
B+
Retailer 12
-
$4,957 CAD
$3,547 USD
View
B+
Retailer 13
-
$5,422 CAD
£3,055 GBP
View
B+
Retailer 14
-
$5,570 CAD
$3,986 USD
View
B+
Retailer 15
-
$5,764 CAD
$4,125 USD
View
B+
Retailer 16
-
$6,085 CAD
A$6,699 AUD
View
B
Retailer 17
-
$6,177 CAD
SGD 5,973 SGD
View
Retailer 18
-
$6,995 CAD
$5,006 USD
View
Price last confirmed 20 days ago
Most Expensive
B
Brilliant Earth
21558666A · Nov 2
$10,033 CAD
$7,180 USD
View
18 more retailers have this diamond
Prices start from $1,543 CADSave up to $8,491 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 Marquise
$1,543 CAD