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Radiant|Lab Grown|IGI

4.05ct E IF Radiant Lab Grown Diamond

- • E/IF • IGI LG781638079

Certificate IGI LG781638079

Diamond specifications and retailer prices

From $2,100 USD
Save $7,202 USD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,302 USD at Novita Diamonds
View at Novita Diamonds

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 LG781638079 or 781638079. Listed at 15 retailers, with prices from $2,100 to $9,302 at Novita Diamonds, a $7,202 spread on the same certified stone. 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
Color
IF
Clarity
-
Cut

Specifications

Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781638079
Dimensions7.89 × 7.89 × 11.66 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.89 mm7.89 mm4.05 ctE / IF
OriginLab Grown
Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781638079
Side View
Table 65.0%Crown 43.2°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 27
Current: $9,302 USD|Low: $1,411 USD|High: $9,302 USD|Avg: $4,196 USD
Novita Diamonds
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
September 29, 2026
Retailer 3$1,918 USD
Retailer 10$2,100 USD
Retailer 11$2,220 USD
Retailer 7$2,406 USD
Retailer 12$2,842 USD
Retailer 9$2,885 USD
Retailer 8$3,858 USD
Retailer 4$4,115 USD
Retailer 6$4,256 USD
Retailer 2$5,353 USD
Retailer 13$5,737 USD
Retailer 14$5,743 USD
Retailer 15$5,788 USD
Retailer 16$6,420 USD
Retailer 5$6,973 USD
Novita Diamonds$9,302 USD

38 data points across 16 retailers

15 retailers$2,100 USD to $9,302 USD

A
Cheapest Retailer
-
$2,100 USD
A
Retailer 2
-
$2,220 USD
View
A
Retailer 3
-
$2,406 USD
HK$18,800 HKD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$2,842 USD
View
A
Retailer 5
-
$2,885 USD
£2,272 GBP
View
A
Retailer 6
-
$3,858 USD
View
Price last confirmed 45 days ago
A
Retailer 7
-
$4,115 USD
£3,240 GBP
View
Price last confirmed 6 days ago
A
Retailer 8
-
$4,256 USD
ZAR 68,757 ZAR
View
Price last confirmed 9 days ago
A
Retailer 9
-
$5,353 USD
View
A
Retailer 10
-
$5,737 USD
£4,517 GBP
View
A
Retailer 11
-
$5,743 USD
View
A
Retailer 12
-
$5,788 USD
View
B+
Retailer 13
-
$6,420 USD
View
B+
Retailer 14
-
$6,973 USD
View
Most Expensive
B+
Novita Diamonds
cert_781638079 · Sep 28
$9,302 USD
A$14,311 AUD
View
14 more retailers have this diamond
Prices start from $2,100 USDSave up to $7,202 USD

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.

A
4.05ct Radiant
$2,100 USD