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Radiant|Lab Grown|IGI

1.21ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG744515220

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

Certificate IGI LG744515220

Diamond specifications and retailer prices

From $822 CAD
HK$4,600 HKD
As of November 1, 2026
Save $2,614 CAD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,436 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515220 or 744515220. Listed at 13 retailers as of October 31, 2026, with prices from $822 to $3,436, a $2,614 spread on the same certified stone. Brilliant Earth lists it at $3,436. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515220
Dimensions7.82 × 5.25 × 3.41 mm
L/W Ratio1.49
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
7.82 mm5.25 mm1.21 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515220
Side View
Table 61.0%Crown 40.5°Girdle: MediumPavilion 33.9°Culet: NoneDepth 65.0%

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: Nov 1
Current: $3,436 CAD|Low: $799 CAD|High: $4,484 CAD|Avg: $1,818 CAD|-23.4%
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
November 2, 2026
Retailer 5$822 CAD
Retailer 12$862 CAD
Retailer 3$873 CAD
Retailer 10$902 CAD
Retailer 7$1,000 CAD
Retailer 2$1,064 CAD
Retailer 6$1,111 CAD
Retailer 11$1,413 CAD
Retailer 13$2,205 CAD
Retailer 4$2,356 CAD
Retailer 8$2,414 CAD
Retailer 9$3,269 CAD
Brilliant Earth$3,436 CAD

44 data points across 13 retailers

13 retailers$822 CAD to $3,436 CAD

A
Cheapest Retailer
-
$822 CAD
HK$4,600 HKD
A
Retailer 2
-
$862 CAD
$617 USD
View
A
Retailer 3
-
$873 CAD
$625 USD
View
A
Retailer 4
-
$902 CAD
$646 USD
View
A
Retailer 5
-
$1,000 CAD
€682 EUR
View
B+
Retailer 6
-
$1,064 CAD
ZAR 12,309 ZAR
View
B+
Retailer 7
-
$1,111 CAD
£626 GBP
View
B+
Retailer 8
-
$1,413 CAD
$1,012 USD
View
B+
Retailer 9
-
$2,205 CAD
$1,578 USD
View
B
Retailer 10
-
$2,356 CAD
SGD 2,279 SGD
View
Retailer 11
-
$2,414 CAD
£1,361 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
$3,269 CAD
$2,340 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
17457238Y · Oct 31
$3,436 CAD
$2,460 USD
View
12 more retailers have this diamond
Prices start from $822 CADSave up to $2,614 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
1.21ct Radiant
$822 CAD