Radiant|Lab Grown|IGI

5.08ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780665290

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

Certificate IGI LG780665290

Diamond specifications and retailer prices

From $11,706 CAD
$8,364 USD
As of October 27, 2026
Save $27,553 CAD (70%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $39,259 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.08ct lab-grown radiant diamond

This 5.08ct 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 LG780665290 or 780665290. Listed at 15 retailers as of October 27, 2026, with prices from $11,706 to $39,259, a $27,553 spread on the same certified stone. Brilliant Earth lists it at $39,259. 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

5.08
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665290
Dimensions11.92 × 8.55 × 5.71 mm
L/W Ratio1.39
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
11.92 mm8.55 mm5.08 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665290
Side View
Table 59.0%Crown 38.2°Girdle: ThickPavilion 33.1°Culet: NoneDepth 66.8%

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 27
Current: $39,259 CAD|Low: $11,706 CAD|High: $85,586 CAD|Avg: $25,605 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
Retailer 15
October 29, 2026
Retailer 9$11,706 CAD
Retailer 11$11,894 CAD
Retailer 6$12,143 CAD
Retailer 3$12,175 CAD
Retailer 14$13,464 CAD
Retailer 12$15,106 CAD
Retailer 10$15,713 CAD
Retailer 8$16,144 CAD
Retailer 15$16,858 CAD
Retailer 7$16,907 CAD
Retailer 5$26,380 CAD
Retailer 2$26,899 CAD
Retailer 4$37,798 CAD
Brilliant Earth$39,259 CAD
Retailer 13$73,045 CAD

38 data points across 15 retailers

15 retailers$11,706 CAD to $39,259 CAD

A
Cheapest Retailer
-
$11,706 CAD
$8,364 USD
A
Retailer 2
-
$11,894 CAD
$8,498 USD
View
A
Retailer 3
-
$12,143 CAD
$8,676 USD
View
A
Retailer 4
-
$12,175 CAD
$8,699 USD
View
A
Retailer 5
-
$13,464 CAD
$9,620 USD
View
A
Retailer 6
-
$15,106 CAD
$10,793 USD
View
A
Retailer 7
-
$15,713 CAD
$11,227 USD
View
A
Retailer 8
-
$16,144 CAD
$11,535 USD
View
A
Retailer 9
-
$16,858 CAD
$12,045 USD
View
A
Retailer 10
-
$16,907 CAD
$12,080 USD
View
Final sale: no returns
B+
Retailer 11
-
$26,380 CAD
€17,951 EUR
View
B+
Retailer 12
-
$26,899 CAD
£15,133 GBP
View
B+
Retailer 13
-
$37,798 CAD
$27,006 USD
View
Most Expensive
B
Brilliant Earth
18494855Y · Oct 29
$39,259 CAD
$28,050 USD
View
13 more retailers have this diamond
Prices start from $11,706 CADSave up to $27,553 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
5.08ct Radiant
$11,706 CAD