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Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG648445944

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

Certificate IGI LG648445944

Diamond specifications and retailer prices

From $439 CAD
As of November 4, 2026
Save $3,965 CAD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,404 CAD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG648445944 or 648445944. Listed at 25 retailers as of November 2, 2026, with prices from $439 to $4,404, a $3,965 spread on the same certified stone. Diamond Quarter lists it at $4,404. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648445944
Dimensions8.41 × 5.77 × 3.85 mm
L/W Ratio1.46
Culet sizePointed
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
8.41 mm5.77 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648445944
Side View
Table 63.0%Crown 39.3°Girdle: MediumPavilion 35°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A+
Exceptional
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: $960 CAD|Low: $439 CAD|High: $3,630 CAD|Avg: $1,326 CAD
Retailer 1
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Retailer 21
November 5, 2026
Retailer 4$439 CAD
Retailer 17$492 CAD
Retailer 21$509 CAD
Retailer 3$545 CAD
Retailer 13$624 CAD
Retailer 15$759 CAD
Retailer 7$766 CAD
Retailer 18$886 CAD
Retailer 10$906 CAD
Retailer 16$938 CAD
Retailer 1$960 CAD
Retailer 11$1,225 CAD
Retailer 12$1,278 CAD
Retailer 8$1,480 CAD
Retailer 6$1,597 CAD
Retailer 5$1,750 CAD
Retailer 14$1,813 CAD
Retailer 9$2,174 CAD
Retailer 20$2,184 CAD
Retailer 19$2,310 CAD
Retailer 2$3,616 CAD

35 data points across 21 retailers

25 retailers$439 CAD to $4,404 CAD

A+
Cheapest Retailer
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$439 CAD
A
Retailer 2
-
$492 CAD
View
Final sale: no returns
A
Retailer 3
-
$509 CAD
View
A
Retailer 4
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$545 CAD
View
A
Retailer 5
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$624 CAD
View
A
Retailer 6
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$759 CAD
View
A
Retailer 7
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$766 CAD
View
A
Retailer 8
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$886 CAD
View
A
Retailer 9
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$906 CAD
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A
Retailer 10
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$938 CAD
View
A
Retailer 11
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$960 CAD
View
A
Retailer 12
-
$1,225 CAD
View
A
Retailer 13
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$1,278 CAD
View
B+
Retailer 14
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$1,480 CAD
View
B+
Retailer 15
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$1,597 CAD
View
B+
Retailer 16
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$1,750 CAD
View
B+
Retailer 17
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$1,810 CAD
View
B+
Retailer 18
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$1,813 CAD
View
B+
Retailer 19
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$1,823 CAD
View
B+
Retailer 20
-
$2,174 CAD
View
Retailer 21
-
$2,184 CAD
View
Price last confirmed 10 days ago
B+
Retailer 22
-
$2,310 CAD
View
Retailer 23
-
$3,616 CAD
View
Price last confirmed 8 days ago
Retailer 24
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$3,637 CAD
View
Price last confirmed 38 days ago
Most Expensive
B
Diamond Quarter
1.55IFDLG4480A4N · Nov 2
$4,404 CAD
£2,488 GBP
View
24 more retailers have this diamond
Prices start from $439 CADSave up to $3,965 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+
1.55ct Radiant
$439 CAD