Radiant|Lab Grown|IGI

5.05ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665415778

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

Certificate IGI LG665415778

Diamond specifications and retailer prices

From $11,043 CAD
$7,890 USD
As of October 28, 2026
Save $41,928 CAD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $52,971 CAD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665415778 or 665415778. Listed at 24 retailers as of October 28, 2026, with prices from $11,043 to $52,971, a $41,928 spread on the same certified stone. Taylor and Hart lists it at $52,971. 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

5.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415778
Dimensions12.05 × 8.41 × 5.70 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.05 mm8.41 mm5.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415778
Side View
Table 65.0%Crown 43.7°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
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 28
Current: $18,236 CAD|Low: $11,043 CAD|High: $86,649 CAD|Avg: $25,990 CAD|-4.7%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
Taylor and Hart
October 30, 2026
Retailer 14$11,043 CAD
Retailer 2$12,191 CAD
Retailer 5$14,347 CAD
Retailer 9$15,450 CAD
Retailer 4$15,815 CAD
Retailer 7$16,003 CAD
Retailer 16$16,273 CAD
Retailer 6$16,556 CAD
Retailer 18$17,505 CAD
Retailer 1$18,236 CAD
Retailer 11$21,035 CAD
Retailer 15$23,919 CAD
Retailer 8$25,319 CAD
Retailer 13$27,896 CAD
Retailer 10$29,463 CAD
Retailer 12$35,891 CAD
Retailer 17$36,550 CAD
Taylor and Hart$52,971 CAD
Retailer 3$86,089 CAD

26 data points across 19 retailers

24 retailers$11,043 CAD to $52,971 CAD

A
Cheapest Retailer
-
$11,043 CAD
$7,890 USD
A
Retailer 2
-
$12,191 CAD
$8,710 USD
View
A
Retailer 3
-
$13,796 CAD
$9,857 USD
View
A
Retailer 4
-
$14,347 CAD
$10,251 USD
View
A
Retailer 5
-
$15,450 CAD
$11,039 USD
View
Final sale: no returns
A
Retailer 6
-
$15,815 CAD
$11,300 USD
View
A
Retailer 7
-
$16,003 CAD
$11,434 USD
View
A
Retailer 8
-
$16,273 CAD
$11,627 USD
View
Retailer 9
-
$16,375 CAD
$11,700 USD
View
Price last confirmed 13 days ago
A
Retailer 10
-
$16,556 CAD
$11,829 USD
View
A
Retailer 11
-
$17,505 CAD
$12,507 USD
View
Retailer 12
-
$17,646 CAD
$12,608 USD
View
Price last confirmed 14 days ago
A
Retailer 13
-
$18,236 CAD
£10,259 GBP
View
A
Retailer 14
-
$21,035 CAD
£11,834 GBP
View
A
Retailer 15
-
$23,919 CAD
$17,090 USD
View
A
Retailer 16
-
$25,319 CAD
£14,244 GBP
View
B+
Retailer 17
-
$27,896 CAD
£15,694 GBP
View
B+
Retailer 18
-
$29,463 CAD
$21,051 USD
View
B+
Retailer 19
-
$30,457 CAD
$21,761 USD
View
B+
Retailer 20
-
$35,891 CAD
ZAR 414,282 ZAR
View
Retailer 21
-
$36,550 CAD
A$40,176 AUD
View
Price last confirmed 7 days ago
Most Expensive
B
Taylor and Hart
ZVW1TLP · Oct 30
$52,971 CAD
$37,847 USD
View
21 more retailers have this diamond
Prices start from $11,043 CADSave up to $41,928 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
5.05ct Radiant
$11,043 CAD