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Radiant|Lab Grown|IGI

1.71ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG818654487

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

Certificate IGI LG818654487

Diamond specifications and retailer prices

From $816 CAD
$583 USD
As of October 30, 2026
Save $6,784 CAD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,600 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.71ct lab-grown radiant diamond

This 1.71ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654487 or 818654487. Listed at 12 retailers as of October 29, 2026, with prices from $816 to $7,600, a $6,784 spread on the same certified stone. Brilliant Earth lists it at $7,600. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654487
Dimensions8.71 × 5.86 × 3.83 mm
L/W Ratio1.49
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
8.71 mm5.86 mm1.71 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654487
Side View
Table 63.0%Crown 44.4°Girdle: MED-STKPavilion 31.9°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
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: Oct 30
Current: $7,600 CAD|Low: $816 CAD|High: $9,293 CAD|Avg: $3,938 CAD|-18.2%
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
October 29, 2026
Retailer 6$816 CAD
Retailer 11$914 CAD
Retailer 3$1,218 CAD
Retailer 4$1,510 CAD
Retailer 7$1,555 CAD
Retailer 12$1,787 CAD
Retailer 9$2,511 CAD
Retailer 10$2,938 CAD
Retailer 2$4,426 CAD
Retailer 5$4,511 CAD
Retailer 13$5,675 CAD
Retailer 8$7,250 CAD
Brilliant Earth$7,600 CAD

29 data points across 13 retailers

12 retailers$816 CAD to $7,600 CAD

A
Cheapest Retailer
-
$816 CAD
$583 USD
A
Retailer 2
-
$914 CAD
$653 USD
View
A
Retailer 3
-
$1,218 CAD
$870 USD
View
A
Retailer 4
-
$1,510 CAD
$1,079 USD
View
A
Retailer 5
-
$1,555 CAD
$1,111 USD
View
B+
Retailer 6
-
$1,787 CAD
€1,216 EUR
View
B+
Retailer 7
-
$2,511 CAD
$1,794 USD
View
B+
Retailer 8
-
$2,938 CAD
$2,099 USD
View
B
Retailer 9
-
$4,426 CAD
£2,490 GBP
View
B
Retailer 10
-
$5,675 CAD
$4,055 USD
View
B
Retailer 11
-
$7,250 CAD
$5,180 USD
View
Most Expensive
B
Brilliant Earth
21059862Y · Oct 29
$7,600 CAD
$5,430 USD
View
11 more retailers have this diamond
Prices start from $816 CADSave up to $6,784 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
1.71ct Radiant
$816 CAD