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Radiant|Lab Grown|IGI

1.05ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818641523

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

Certificate IGI LG818641523

Diamond specifications and retailer prices

From $682 CAD
$487 USD
As of October 27, 2026
Save $3,097 CAD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,779 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown radiant diamond

This 1.05ct 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 LG818641523 or 818641523. Listed at 12 retailers as of October 27, 2026, with prices from $682 to $3,779, a $3,097 spread on the same certified stone. Brilliant Earth lists it at $3,779. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818641523
Dimensions7.42 × 5.11 × 3.33 mm
L/W Ratio1.45
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
7.42 mm5.11 mm1.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818641523
Side View
Table 64.0%Crown 39.3°Girdle: MediumPavilion 34.6°Culet: NoneDepth 65.2%

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: Oct 27
Current: $3,779 CAD|Low: $613 CAD|High: $4,619 CAD|Avg: $1,917 CAD|-18.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 26, 2026
Retailer 9$682 CAD
Retailer 8$686 CAD
Retailer 4$731 CAD
Retailer 6$827 CAD
Retailer 3$1,341 CAD
Retailer 5$1,934 CAD
Retailer 7$3,086 CAD
Retailer 2$3,121 CAD
Brilliant Earth$3,779 CAD

22 data points across 9 retailers

12 retailers$682 CAD to $3,779 CAD

A+
Retailer 1
-
$369 CAD
$264 USD
Price last confirmed 18 days ago
A
Retailer 2
-
$430 CAD
$307 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$682 CAD
$487 USD
View
A
Retailer 4
-
$686 CAD
$490 USD
View
A
Retailer 5
-
$731 CAD
$522 USD
View
A
Retailer 6
-
$827 CAD
€563 EUR
View
B+
Retailer 7
-
$1,341 CAD
$958 USD
View
B+
Retailer 8
-
$1,629 CAD
$1,164 USD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$1,934 CAD
£1,088 GBP
View
B
Retailer 10
-
$3,086 CAD
$2,205 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$3,121 CAD
$2,230 USD
View
Most Expensive
B
Brilliant Earth
21059942Y · Oct 29
$3,779 CAD
$2,700 USD
View
11 more retailers have this diamond
Prices start from $682 CADSave up to $3,097 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+
1.05ct Radiant
$682 CAD