Round|Lab Grown|IGI

4.05ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG739586950

Certificate IGI LG739586950

Diamond specifications and retailer prices

From $1,964 USD
£1,546 GBP
Save $11,237 USD (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $13,200 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 LG739586950 or 739586950. Listed at 25 retailers, with prices from $1,964 to $13,200 at Brilliant Earth, a $11,237 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 angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739586950
Dimensions10.18 × 10.23 × 6.31 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
10.18 mm10.23 mm4.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739586950
Side View
Table 57.0%Crown 35.7°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 1
Current: $13,200 USD|Low: $1,857 USD|High: $13,210 USD|Avg: $5,032 USD|-0.1%
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
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
October 1, 2026
Retailer 13$1,964 USD
Retailer 10$2,168 USD
Retailer 15$2,481 USD
Retailer 17$2,528 USD
Retailer 6$2,669 USD
Retailer 8$2,787 USD
Retailer 11$3,030 USD
Retailer 19$3,290 USD
Retailer 22$3,437 USD
Retailer 4$3,457 USD
Retailer 2$3,931 USD
Retailer 24$4,034 USD
Retailer 21$4,225 USD
Retailer 9$4,483 USD
Retailer 18$4,744 USD
Retailer 23$5,257 USD
Retailer 26$5,394 USD
Retailer 5$6,558 USD
Retailer 25$6,906 USD
Retailer 12$7,127 USD
Retailer 16$7,258 USD
Retailer 7$8,792 USD
Retailer 14$8,841 USD
Retailer 3$9,491 USD
Retailer 20$10,503 USD
Brilliant Earth$13,200 USD

34 data points across 26 retailers

25 retailers$1,964 USD to $13,200 USD

A+
Cheapest Retailer
-
$1,964 USD
£1,546 GBP
A
Retailer 2
-
$2,168 USD
View
A
Retailer 3
-
$2,481 USD
View
A
Retailer 4
-
$2,528 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$2,669 USD
View
A
Retailer 6
-
$3,030 USD
View
A
Retailer 7
-
$3,290 USD
HK$25,700 HKD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$3,445 USD
£2,712 GBP
View
A
Retailer 9
-
$3,457 USD
View
A
Retailer 10
-
$3,931 USD
€3,744 EUR
View
A
Retailer 11
-
$4,034 USD
View
A
Retailer 12
-
$4,225 USD
View
A
Retailer 13
-
$4,483 USD
View
A
Retailer 14
-
$4,744 USD
A$7,298 AUD
View
A
Retailer 15
-
$5,257 USD
ZAR 84,922 ZAR
View
A
Retailer 16
-
$5,394 USD
A$8,299 AUD
View
A
Retailer 17
-
$6,558 USD
View
A
Retailer 18
-
$6,906 USD
£5,438 GBP
View
B+
Retailer 19
-
$7,127 USD
View
B+
Retailer 20
-
$7,258 USD
View
B+
Retailer 21
-
$8,792 USD
View
B+
Retailer 22
-
$8,841 USD
SGD 11,947 SGD
View
B+
Retailer 23
-
$9,685 USD
View
B+
Retailer 24
-
$10,503 USD
A$16,159 AUD
View
Most Expensive
B
Brilliant Earth
16164022A · Sep 29
$13,200 USD
View
24 more retailers have this diamond
Prices start from $1,964 USDSave up to $11,237 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
$1,964 USD