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Radiant|Lab Grown|IGI

4.06ct E IF Radiant Lab Grown Diamond

GD • E/IF • IGI LG631407023

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

Certificate IGI LG631407023

Diamond specifications and retailer prices

From $4,390 AUD
€2,937 EUR
As of October 23, 2026
Save $15,766 AUD (78%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $20,155 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.06ct lab-grown radiant diamond

This 4.06ct 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 LG631407023 or 631407023. Listed at 25 retailers as of October 23, 2026, with prices from $4,390 to $20,155, a $15,766 spread on the same certified stone. Brilliant Earth lists it at $20,155. 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

4.06
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631407023
Dimensions11.82 × 7.83 × 5.18 mm
L/W Ratio1.51
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
11.82 mm7.83 mm4.06 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631407023
Side View
Table 66.0%Crown 31.4°Girdle: MediumPavilion 33°Culet: NoneDepth 66.2%

Caratlytics Score

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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 23
Current: $20,155 AUD|Low: $2,694 AUD|High: $20,155 AUD|Avg: $6,703 AUD|+71.0%
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 7$4,390 AUD
Retailer 13$4,538 AUD
Retailer 10$4,814 AUD
Retailer 6$4,857 AUD
Retailer 3$4,925 AUD
Retailer 8$5,992 AUD
Retailer 2$6,350 AUD
Retailer 5$7,067 AUD
Retailer 16$8,113 AUD
Retailer 15$8,135 AUD
Retailer 9$9,053 AUD
Retailer 11$10,005 AUD
Retailer 17$11,807 AUD
Retailer 12$11,978 AUD
Retailer 18$12,312 AUD
Retailer 14$13,082 AUD
Retailer 4$16,378 AUD
Brilliant Earth$20,155 AUD

32 data points across 18 retailers

25 retailers$4,390 AUD to $20,155 AUD

Retailer 1
-
$2,407 AUD
$1,691 USD
Price last confirmed 21 days ago
Retailer 2
-
$2,793 AUD
$1,962 USD
View
Price last confirmed 26 days ago
Retailer 3
-
$2,793 AUD
$1,962 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$2,891 AUD
$2,031 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$4,390 AUD
€2,937 EUR
View
B+
Retailer 6
-
$4,538 AUD
$3,188 USD
View
Final sale: no returns
A
Retailer 7
-
$4,814 AUD
$3,382 USD
View
B+
Retailer 8
-
$4,857 AUD
$3,412 USD
View
B+
Retailer 9
-
$4,925 AUD
$3,460 USD
View
Retailer 10
-
$5,234 AUD
$3,677 USD
View
Price last confirmed 25 days ago
Retailer 11
-
$5,992 AUD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$6,350 AUD
£3,513 GBP
View
B+
Retailer 13
-
$7,067 AUD
$4,965 USD
View
B+
Retailer 14
-
$8,113 AUD
£4,488 GBP
View
Retailer 15
-
$8,119 AUD
$5,704 USD
View
Price last confirmed 94 days ago
B+
Retailer 16
-
$8,135 AUD
$5,715 USD
View
B+
Retailer 17
-
$9,053 AUD
$6,360 USD
View
B
Retailer 18
-
$10,005 AUD
ZAR 113,556 ZAR
View
B
Retailer 19
-
$11,246 AUD
$7,901 USD
View
B
Retailer 20
-
$11,807 AUD
$8,295 USD
View
B
Retailer 21
-
$11,978 AUD
£6,626 GBP
View
B
Retailer 22
-
$12,312 AUD
$8,650 USD
View
B
Retailer 23
-
$13,082 AUD
$9,191 USD
View
B
Retailer 24
-
$16,378 AUD
$11,506 USD
View
Most Expensive
B
Brilliant Earth
10239960A · Oct 29
$20,155 AUD
$14,160 USD
View
24 more retailers have this diamond
Prices start from $4,390 AUDSave up to $15,766 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
4.06ct Radiant
$4,390 AUD