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Radiant|Lab Grown|IGI

5.17ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804665318

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

Certificate IGI LG804665318

Diamond specifications and retailer prices

From $12,746 CAD
$9,107 USD
As of October 27, 2026
Save $27,198 CAD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $39,945 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 5.17ct lab-grown radiant diamond

This 5.17ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804665318 or 804665318. Listed at 14 retailers as of October 27, 2026, with prices from $12,746 to $39,945, a $27,198 spread on the same certified stone. Brilliant Earth lists it at $39,945. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.17
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665318
Dimensions11.98 × 8.54 × 5.82 mm
L/W Ratio1.40
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
11.98 mm8.54 mm5.17 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665318
Side View
Table 59.0%Crown 38.8°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 68.1%

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: $39,945 CAD|Low: $12,746 CAD|High: $86,061 CAD|Avg: $25,200 CAD|-3.0%
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
Retailer 14
October 29, 2026
Retailer 8$12,746 CAD
Retailer 10$12,823 CAD
Retailer 5$12,985 CAD
Retailer 3$13,256 CAD
Retailer 13$14,633 CAD
Retailer 14$15,295 CAD
Retailer 11$16,185 CAD
Retailer 9$17,099 CAD
Retailer 7$17,103 CAD
Retailer 6$17,201 CAD
Retailer 2$26,358 CAD
Retailer 4$28,780 CAD
Brilliant Earth$39,945 CAD
Retailer 12$79,539 CAD

35 data points across 14 retailers

14 retailers$12,746 CAD to $39,945 CAD

A+
Cheapest Retailer
-
$12,746 CAD
$9,107 USD
A
Retailer 2
-
$12,823 CAD
$9,162 USD
View
A
Retailer 3
-
$12,985 CAD
$9,278 USD
View
A
Retailer 4
-
$13,256 CAD
$9,471 USD
View
A
Retailer 5
-
$14,633 CAD
$10,455 USD
View
A
Retailer 6
-
$15,295 CAD
$10,928 USD
View
A
Retailer 7
-
$16,185 CAD
$11,564 USD
View
A
Retailer 8
-
$17,099 CAD
$12,217 USD
View
A
Retailer 9
-
$17,103 CAD
$12,220 USD
View
A
Retailer 10
-
$17,201 CAD
$12,290 USD
View
Final sale: no returns
B+
Retailer 11
-
$26,358 CAD
£14,829 GBP
View
B+
Retailer 12
-
$28,780 CAD
€19,584 EUR
View
Most Expensive
B
Brilliant Earth
20496444Y · Oct 28
$39,945 CAD
$28,540 USD
View
12 more retailers have this diamond
Prices start from $12,746 CADSave up to $27,198 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+
5.17ct Radiant
$12,746 CAD