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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG850604664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850604664

Diamond specifications and retailer prices

From $487 CAD
As of November 4, 2026
Save $2,445 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,933 CAD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG850604664 or 850604664. Listed at 14 retailers as of November 4, 2026, with prices from $487 to $2,933, a $2,445 spread on the same certified stone. Brilliant Earth lists it at $2,933. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850604664
Dimensions11.01 × 5.64 × 3.55 mm
L/W Ratio1.95
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
11.01 mm5.64 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850604664
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.9%

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 4
Current: $1,184 CAD|Low: $588 CAD|High: $2,318 CAD|Avg: $1,350 CAD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 4$588 CAD
Retailer 7$621 CAD
Retailer 6$697 CAD
Retailer 10$855 CAD
Retailer 5$1,077 CAD
Retailer 1$1,184 CAD
Retailer 3$1,383 CAD
Retailer 8$1,475 CAD
Retailer 9$2,003 CAD
Retailer 11$2,031 CAD
Retailer 2$2,318 CAD

3 data points across 11 retailers

14 retailers$487 CAD to $2,933 CAD

A
Cheapest Retailer
-
$487 CAD
A
Retailer 2
-
$588 CAD
View
Final sale: no returns
A
Retailer 3
-
$621 CAD
View
A
Retailer 4
-
$697 CAD
View
A
Retailer 5
-
$855 CAD
View
A
Retailer 6
-
$1,077 CAD
View
A
Retailer 7
-
$1,184 CAD
View
B+
Retailer 8
-
$1,383 CAD
View
B+
Retailer 9
-
$1,475 CAD
View
B+
Retailer 10
-
$1,944 CAD
View
B+
Retailer 11
-
$2,003 CAD
View
B+
Retailer 12
-
$2,031 CAD
View
B
Retailer 13
-
$2,318 CAD
View
Most Expensive
B
Brilliant Earth
22501119A · Nov 4
$2,933 CAD
$2,100 USD
View
13 more retailers have this diamond
Prices start from $487 CADSave up to $2,445 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
1.25ct Marquise
$487 CAD