Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG743593979

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

Certificate IGI LG743593979

Diamond specifications and retailer prices

From $397 CAD
As of November 4, 2026
Save $3,282 CAD (89%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $4,668 CAD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

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 LG743593979 or 743593979. Listed at 30 retailers as of November 4, 2026, with a 826% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593979
Dimensions5.79 × 5.79 × 3.78 mm
L/W Ratio1.00
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
5.79 mm5.79 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593979
Side View
Table 62.0%Crown 36.8°Girdle: MediumPavilion 33°Culet: NoneDepth 65.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $4,668 CAD|Low: $397 CAD|High: $4,668 CAD|Avg: $1,696 CAD
Brilliant Earth
Retailer 2
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Retailer 23
November 5, 2026
Retailer 19$397 CAD
Retailer 9$474 CAD
Retailer 17$711 CAD
Retailer 18$730 CAD
Retailer 21$766 CAD
Retailer 16$878 CAD
Retailer 5$886 CAD
Retailer 2$960 CAD
Retailer 10$977 CAD
Retailer 14$1,152 CAD
Retailer 7$1,225 CAD
Retailer 4$1,278 CAD
Retailer 22$1,515 CAD
Retailer 20$1,750 CAD
Retailer 6$1,895 CAD
Retailer 8$1,976 CAD
Retailer 23$2,037 CAD
Retailer 3$2,106 CAD
Retailer 13$2,174 CAD
Retailer 11$2,331 CAD
Retailer 12$3,421 CAD
Retailer 15$3,679 CAD
Brilliant Earth$4,668 CAD

35 data points across 23 retailers

30 retailers$397 CAD to $3,679 CAD

A
Cheapest Retailer
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$397 CAD
Retailer 2
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$414 CAD
View
Price last confirmed 28 days ago
Retailer 3
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$440 CAD
View
Price last confirmed 36 days ago
A
Retailer 4
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$474 CAD
View
Final sale: no returns
Retailer 5
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$511 CAD
View
Price last confirmed 39 days ago
Retailer 6
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$514 CAD
View
Price last confirmed 33 days ago
Retailer 7
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$539 CAD
View
Price last confirmed 37 days ago
A
Retailer 8
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$711 CAD
View
A
Retailer 9
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$730 CAD
View
A
Retailer 10
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$766 CAD
View
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Retailer 11
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$878 CAD
View
A
Retailer 12
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$886 CAD
View
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Retailer 13
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$960 CAD
View
A
Retailer 14
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$977 CAD
View
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Retailer 15
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$1,152 CAD
View
A
Retailer 16
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$1,225 CAD
View
A
Retailer 17
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$1,278 CAD
View
B+
Retailer 18
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$1,515 CAD
View
B+
Retailer 19
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$1,750 CAD
View
Retailer 20
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$1,823 CAD
View
Price last confirmed 26 days ago
B+
Retailer 21
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$1,895 CAD
View
Retailer 22
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$1,938 CAD
View
Price last confirmed 36 days ago
B+
Retailer 23
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$1,976 CAD
View
B+
Retailer 24
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$2,037 CAD
View
B+
Retailer 25
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$2,106 CAD
View
B+
Retailer 26
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$2,174 CAD
View
B+
Retailer 27
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$2,331 CAD
View
Retailer 28
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$3,421 CAD
View
Price last confirmed 8 days ago
B
Retailer 29
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$3,679 CAD
View
Most Expensive
Brilliant Earth
17457421Y · Oct 22
$4,668 CAD
$3,350 USD
View
Price last confirmed 13 days ago
29 more retailers have this diamond
Prices start from $397 CADSave up to $3,282 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
$397 CAD