CaratHunter
Plans
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 $11,232 AUD
$7,890 USD
As of October 28, 2026
Save $42,647 AUD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $53,879 AUD 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 $11,232 to $53,879, a $42,647 spread on the same certified stone. Taylor and Hart lists it at $53,879. 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
Colour
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: $18,549 AUD|Low: $11,232 AUD|High: $88,135 AUD|Avg: $26,436 AUD|-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$11,232 AUD
Retailer 2$12,400 AUD
Retailer 5$14,593 AUD
Retailer 9$15,715 AUD
Retailer 4$16,087 AUD
Retailer 7$16,277 AUD
Retailer 16$16,552 AUD
Retailer 6$16,840 AUD
Retailer 18$17,805 AUD
Retailer 1$18,549 AUD
Retailer 11$21,396 AUD
Retailer 15$24,329 AUD
Retailer 8$25,753 AUD
Retailer 13$28,374 AUD
Retailer 10$29,968 AUD
Retailer 12$36,507 AUD
Retailer 17$37,176 AUD
Taylor and Hart$53,879 AUD
Retailer 3$87,566 AUD

26 data points across 19 retailers

24 retailers$11,232 AUD to $53,879 AUD

A
Cheapest Retailer
-
$11,232 AUD
$7,890 USD
A
Retailer 2
-
$12,400 AUD
$8,710 USD
View
A
Retailer 3
-
$14,032 AUD
$9,857 USD
View
A
Retailer 4
-
$14,593 AUD
$10,251 USD
View
A
Retailer 5
-
$15,715 AUD
$11,039 USD
View
Final sale: no returns
A
Retailer 6
-
$16,087 AUD
$11,300 USD
View
A
Retailer 7
-
$16,277 AUD
$11,434 USD
View
A
Retailer 8
-
$16,552 AUD
$11,627 USD
View
Retailer 9
-
$16,656 AUD
$11,700 USD
View
Price last confirmed 14 days ago
A
Retailer 10
-
$16,840 AUD
$11,829 USD
View
A
Retailer 11
-
$17,805 AUD
$12,507 USD
View
Retailer 12
-
$17,949 AUD
$12,608 USD
View
Price last confirmed 14 days ago
A
Retailer 13
-
$18,549 AUD
£10,259 GBP
View
A
Retailer 14
-
$21,396 AUD
£11,834 GBP
View
A
Retailer 15
-
$24,329 AUD
$17,090 USD
View
A
Retailer 16
-
$25,753 AUD
£14,244 GBP
View
B+
Retailer 17
-
$28,374 AUD
£15,694 GBP
View
B+
Retailer 18
-
$29,968 AUD
$21,051 USD
View
B+
Retailer 19
-
$30,979 AUD
$21,761 USD
View
B+
Retailer 20
-
$36,507 AUD
ZAR 414,282 ZAR
View
Retailer 21
-
$37,176 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
Taylor and Hart
ZVW1TLP · Oct 30
$53,879 AUD
$37,847 USD
View
21 more retailers have this diamond
Prices start from $11,232 AUDSave up to $42,647 AUD

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
$11,232 AUD