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Radiant|Lab Grown|IGI

1.65ct D IF Radiant Lab Grown Diamond

D/IF

Diamond specifications and retailer prices

From $671 CAD
£378 GBP
As of October 30, 2026
Save $3,136 CAD (82%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,807 CAD at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1.65ct lab-grown radiant diamond

This 1.65ct 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) and certified by IGI. Listed at 2 retailers as of October 29, 2026, with prices from $671 to $3,807, a $3,136 spread on the same certified stone. Helzberg Diamonds lists it at $3,807. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.65
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.18 × 5.91 × 4.03 mm
L/W Ratio1.38
Top View
8.18 mm5.91 mm1.65 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,807 CAD|Low: $358 CAD|High: $3,807 CAD|Avg: $1,141 CAD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$358 CAD
Retailer 4$506 CAD
Retailer 5$587 CAD
Retailer 7$619 CAD
Retailer 6$626 CAD
Retailer 2$671 CAD
Retailer 3$2,014 CAD
Helzberg Diamonds$3,807 CAD

36 data points across 8 retailers

2 retailers$671 CAD to $3,807 CAD

A
Cheapest Retailer
-
$671 CAD
£378 GBP
Most Expensive
C
Helzberg Diamonds
ZXZNGNLLGJJO · Oct 29
$3,807 CAD
$2,725 USD
View
1 more retailer has this diamond
Prices start from $671 CADSave up to $3,136 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
1.65ct Radiant
$671 CAD