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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 $2,961 NZD
$1,663 USD
As of October 27, 2026
Save $15,700 NZD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $18,661 NZD 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 $2,961 to $18,661, a $15,700 spread on the same certified stone. Diamond Quarter lists it at $18,661. 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

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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 27
Current: $4,867 NZD|Low: $2,929 NZD|High: $16,830 NZD|Avg: $7,361 NZD|-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$2,961 NZD
Retailer 4$3,221 NZD
Retailer 8$3,315 NZD
Retailer 12$3,435 NZD
Retailer 5$3,739 NZD
Retailer 17$3,855 NZD
Retailer 18$3,966 NZD
Retailer 1$4,867 NZD
Retailer 10$4,911 NZD
Retailer 13$6,102 NZD
Retailer 19$6,438 NZD
Retailer 3$7,109 NZD
Retailer 15$7,311 NZD
Retailer 11$7,594 NZD
Retailer 6$9,255 NZD
Retailer 2$9,437 NZD
Retailer 16$9,861 NZD
Retailer 21$9,951 NZD
Retailer 20$11,226 NZD
Retailer 9$12,055 NZD
Retailer 14$16,830 NZD

39 data points across 21 retailers

23 retailers$2,961 NZD to $18,661 NZD

A
Cheapest Retailer
-
$2,961 NZD
$1,663 USD
A
Retailer 2
-
$3,221 NZD
$1,809 USD
View
A
Retailer 3
-
$3,315 NZD
$1,862 USD
View
Final sale: no returns
A
Retailer 4
-
$3,435 NZD
$1,929 USD
View
Retailer 5
-
$3,540 NZD
$1,988 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$3,739 NZD
$2,100 USD
View
A
Retailer 7
-
$3,855 NZD
$2,165 USD
View
A
Retailer 8
-
$3,966 NZD
HK$17,400 HKD
View
A
Retailer 9
-
$4,867 NZD
£2,153 GBP
View
A
Retailer 10
-
$4,911 NZD
$2,758 USD
View
A
Retailer 11
-
$6,102 NZD
$3,427 USD
View
A
Retailer 12
-
$6,438 NZD
$3,616 USD
View
A
Retailer 13
-
$7,109 NZD
£3,144 GBP
View
A
Retailer 14
-
$7,311 NZD
ZAR 66,331 ZAR
View
Retailer 15
-
$7,594 NZD
A$6,562 AUD
View
Price last confirmed 7 days ago
A
Retailer 16
-
$9,255 NZD
$5,198 USD
View
B+
Retailer 17
-
$9,437 NZD
$5,300 USD
View
A
Retailer 18
-
$9,861 NZD
£4,361 GBP
View
B+
Retailer 19
-
$9,951 NZD
$5,589 USD
View
B+
Retailer 20
-
$11,226 NZD
$6,305 USD
View
B+
Retailer 21
-
$12,055 NZD
$6,770 USD
View
Retailer 22
-
$16,830 NZD
A$14,542 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Diamond Quarter
4.05IFELG649FD0N · Oct 29
$18,661 NZD
£8,253 GBP
View
22 more retailers have this diamond
Prices start from $2,961 NZDSave up to $15,700 NZD

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
$2,961 NZD