CaratHunter
Plans
Radiant|Lab Grown|IGI

4.05ct E IF Radiant Lab Grown Diamond

GD • E/IF • IGI LG662415764

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

Certificate IGI LG662415764

Diamond specifications and retailer prices

From $2,367 AUD
$1,663 USD
As of October 27, 2026
Save $12,551 AUD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $14,918 AUD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 4.05ct lab-grown radiant diamond

This 4.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG662415764 or 662415764. Listed at 23 retailers as of October 27, 2026, with prices from $2,367 to $14,918, a $12,551 spread on the same certified stone. Diamond Quarter lists it at $14,918. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.05
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662415764
Dimensions11.58 × 7.80 × 5.18 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.58 mm7.80 mm4.05 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662415764
Side View
Table 66.0%Crown 38.5°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 66.4%

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 27
Current: $3,891 AUD|Low: $2,341 AUD|High: $13,454 AUD|Avg: $5,885 AUD|-6.3%
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
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 7$2,367 AUD
Retailer 4$2,575 AUD
Retailer 8$2,650 AUD
Retailer 12$2,746 AUD
Retailer 5$2,989 AUD
Retailer 17$3,082 AUD
Retailer 18$3,170 AUD
Retailer 1$3,891 AUD
Retailer 10$3,926 AUD
Retailer 13$4,878 AUD
Retailer 19$5,147 AUD
Retailer 3$5,683 AUD
Retailer 15$5,844 AUD
Retailer 11$6,071 AUD
Retailer 6$7,399 AUD
Retailer 2$7,544 AUD
Retailer 16$7,883 AUD
Retailer 21$7,956 AUD
Retailer 20$8,975 AUD
Retailer 9$9,637 AUD
Retailer 14$13,454 AUD

39 data points across 21 retailers

23 retailers$2,367 AUD to $14,918 AUD

A
Cheapest Retailer
-
$2,367 AUD
$1,663 USD
A
Retailer 2
-
$2,575 AUD
$1,809 USD
View
A
Retailer 3
-
$2,650 AUD
$1,862 USD
View
Final sale: no returns
A
Retailer 4
-
$2,746 AUD
$1,929 USD
View
Retailer 5
-
$2,830 AUD
$1,988 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$2,989 AUD
$2,100 USD
View
A
Retailer 7
-
$3,082 AUD
$2,165 USD
View
A
Retailer 8
-
$3,170 AUD
HK$17,400 HKD
View
A
Retailer 9
-
$3,891 AUD
£2,153 GBP
View
A
Retailer 10
-
$3,926 AUD
$2,758 USD
View
A
Retailer 11
-
$4,878 AUD
$3,427 USD
View
A
Retailer 12
-
$5,147 AUD
$3,616 USD
View
A
Retailer 13
-
$5,683 AUD
£3,144 GBP
View
A
Retailer 14
-
$5,844 AUD
ZAR 66,331 ZAR
View
Retailer 15
-
$6,071 AUD
View
Price last confirmed 7 days ago
A
Retailer 16
-
$7,399 AUD
$5,198 USD
View
B+
Retailer 17
-
$7,544 AUD
$5,300 USD
View
A
Retailer 18
-
$7,883 AUD
£4,361 GBP
View
B+
Retailer 19
-
$7,956 AUD
$5,589 USD
View
B+
Retailer 20
-
$8,975 AUD
$6,305 USD
View
B+
Retailer 21
-
$9,637 AUD
$6,770 USD
View
Retailer 22
-
$13,454 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Diamond Quarter
4.05IFELG649FD0N · Oct 29
$14,918 AUD
£8,253 GBP
View
22 more retailers have this diamond
Prices start from $2,367 AUDSave up to $12,551 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
4.05ct Radiant
$2,367 AUD