CaratHunter
Plans
Round|Lab Grown|IGI

4.05ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG754594941

Certificate IGI LG754594941

Diamond specifications and retailer prices

From $2,630 USD
Save $13,290 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,920 USD at Brilliant Earth
View at Brilliant Earth

About this 4.05ct lab-grown round diamond

This 4.05ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594941 or 754594941. Listed at 19 retailers, with prices from $2,630 to $15,920 at Brilliant Earth, a $13,290 spread on the same certified stone. 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
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594941
Dimensions10.24 × 10.32 × 6.25 mm
L/W Ratio1.01
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
10.24 mm10.32 mm4.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594941
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

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 28
Current: $15,920 USD|Low: $2,630 USD|High: $23,490 USD|Avg: $8,078 USD|-32.2%
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
Retailer 19
Retailer 20
October 1, 2026
Retailer 6$2,630 USD
Retailer 9$3,009 USD
Retailer 4$3,112 USD
Retailer 11$3,176 USD
Retailer 7$3,694 USD
Retailer 20$3,738 USD
Retailer 10$3,787 USD
Retailer 15$4,107 USD
Retailer 19$4,194 USD
Retailer 5$4,636 USD
Retailer 13$4,807 USD
Retailer 12$5,842 USD
Retailer 16$6,376 USD
Retailer 3$8,019 USD
Retailer 17$8,266 USD
Retailer 2$9,521 USD
Retailer 8$10,812 USD
Retailer 14$10,875 USD
Retailer 18$11,605 USD
Brilliant Earth$15,920 USD

36 data points across 20 retailers

19 retailers$2,630 USD to $15,920 USD

A
Cheapest Retailer
-
$2,630 USD
A
Retailer 2
-
$3,009 USD
View
A
Retailer 3
-
$3,112 USD
View
A
Retailer 4
-
$3,176 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$3,694 USD
View
A
Retailer 6
-
$3,738 USD
HK$29,200 HKD
View
A
Retailer 7
-
$4,116 USD
£3,241 GBP
View
A
Retailer 8
-
$4,194 USD
View
A
Retailer 9
-
$4,636 USD
View
A
Retailer 10
-
$4,807 USD
€4,578 EUR
View
A
Retailer 11
-
$5,842 USD
A$8,988 AUD
View
A
Retailer 12
-
$6,376 USD
ZAR 103,009 ZAR
View
B+
Retailer 13
-
$8,019 USD
View
B+
Retailer 14
-
$8,266 USD
£6,509 GBP
View
B+
Retailer 15
-
$9,521 USD
View
B+
Retailer 16
-
$10,812 USD
SGD 14,611 SGD
View
B+
Retailer 17
-
$10,875 USD
A$16,731 AUD
View
B
Retailer 18
-
$11,842 USD
View
Most Expensive
B
Brilliant Earth
18146323A · Sep 29
$15,920 USD
View
18 more retailers have this diamond
Prices start from $2,630 USDSave up to $13,290 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 Round
$2,630 USD