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Round|Lab Grown|IGI

4.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG724556250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG724556250

Diamond specifications and retailer prices

From $1,742 USD
As of October 31, 2026
Save $4,602 USD (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,344 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.05ct lab-grown round diamond

This 4.05ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG724556250 or 724556250. Listed at 21 retailers as of October 31, 2026, with prices from $1,742 to $6,344, a $4,602 spread on the same certified stone. Taylor and Hart lists it at $6,344. 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

4.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG724556250
Dimensions10.16 × 10.21 × 6.27 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.16 mm10.21 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG724556250
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
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 31
Current: $1,772 USD|Low: $1,567 USD|High: $6,344 USD|Avg: $3,236 USD|-5.6%
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
Taylor and Hart
November 1, 2026
Retailer 8$1,567 USD
Retailer 5$1,742 USD
Retailer 1$1,772 USD
Retailer 6$1,805 USD
Retailer 7$1,894 USD
Retailer 11$1,975 USD
Retailer 16$2,051 USD
Retailer 10$2,547 USD
Retailer 13$2,612 USD
Retailer 15$3,192 USD
Retailer 12$3,842 USD
Retailer 9$3,867 USD
Retailer 3$3,899 USD
Retailer 4$4,865 USD
Retailer 14$5,183 USD
Retailer 2$5,264 USD
Taylor and Hart$6,344 USD

34 data points across 17 retailers

21 retailers$1,742 USD to $6,344 USD

Retailer 1
-
$1,567 USD
Price last confirmed 24 days ago
Retailer 2
-
$1,633 USD
View
Price last confirmed 39 days ago
A
Retailer 3
-
$1,742 USD
View
Final sale: no returns
A
Retailer 4
-
$1,772 USD
£1,395 GBP
View
Retailer 5
-
$1,805 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$1,868 USD
View
Price last confirmed 39 days ago
Retailer 7
-
$1,894 USD
View
Price last confirmed 29 days ago
A
Retailer 8
-
$1,975 USD
View
A
Retailer 9
-
$2,051 USD
View
A
Retailer 10
-
$2,547 USD
£2,006 GBP
View
A
Retailer 11
-
$2,612 USD
View
A
Retailer 12
-
$3,192 USD
View
Retailer 13
-
$3,550 USD
View
Price last confirmed 41 days ago
Retailer 14
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$3,550 USD
View
Price last confirmed 24 days ago
A
Retailer 15
-
$3,842 USD
ZAR 62,073 ZAR
View
A
Retailer 16
-
$3,867 USD
A$5,949 AUD
View
A
Retailer 17
-
$3,899 USD
View
A
Retailer 18
-
$4,865 USD
View
A
Retailer 19
-
$5,183 USD
£4,081 GBP
View
A
Retailer 20
-
$5,264 USD
View
Most Expensive
B+
Taylor and Hart
CRYSG7Q · Oct 31
$6,344 USD
View
20 more retailers have this diamond
Prices start from $1,742 USDSave up to $4,602 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.05ct Round
$1,742 USD