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Round|Lab Grown|IGI

4.00ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG628497682

Certificate IGI LG628497682

Diamond specifications and retailer prices

From $2,475 USD
Save $20,675 USD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $23,150 USD at Brilliant Earth
View at Brilliant Earth

About this 4ct lab-grown round diamond

This 4ct 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 LG628497682 or 628497682. Listed at 20 retailers, with prices from $2,475 to $23,150 at Brilliant Earth, a $20,675 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

4.00
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628497682
Dimensions10.41 × 10.37 × 6.06 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
10.41 mm10.37 mm4.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628497682
Side View
Table 59.0%Crown 32°Girdle: THN-STKPavilion 40.3°Culet: NoneDepth 58.3%

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: Oct 1
Current: $23,150 USD|Low: $1,620 USD|High: $23,150 USD|Avg: $7,144 USD
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
October 1, 2026
Retailer 16$2,475 USD
Retailer 5$2,505 USD
Retailer 15$2,507 USD
Retailer 3$3,286 USD
Retailer 6$3,342 USD
Retailer 12$3,528 USD
Retailer 17$3,776 USD
Retailer 2$3,840 USD
Retailer 19$4,892 USD
Retailer 13$5,395 USD
Retailer 7$5,647 USD
Retailer 4$6,115 USD
Retailer 8$6,585 USD
Retailer 18$6,749 USD
Retailer 14$7,089 USD
Retailer 10$9,021 USD
Retailer 9$13,870 USD
Retailer 11$15,943 USD
Brilliant Earth$23,150 USD

39 data points across 19 retailers

20 retailers$2,475 USD to $23,150 USD

A
Cheapest Retailer
-
$2,475 USD
A
Retailer 2
-
$2,505 USD
View
A
Retailer 3
-
$2,507 USD
View
A
Retailer 4
-
$3,286 USD
View
A
Retailer 5
-
$3,342 USD
View
A
Retailer 6
-
$3,536 USD
£2,784 GBP
View
A
Retailer 7
-
$3,776 USD
View
A
Retailer 8
-
$3,840 USD
€3,657 EUR
View
A
Retailer 9
-
$3,840 USD
View
Price last confirmed 15 days ago
A
Retailer 10
-
$4,892 USD
£3,852 GBP
View
A
Retailer 11
-
$5,395 USD
ZAR 87,161 ZAR
View
A
Retailer 12
-
$5,647 USD
A$8,688 AUD
View
A
Retailer 13
-
$6,115 USD
View
A
Retailer 14
-
$6,585 USD
View
B+
Retailer 15
-
$6,749 USD
View
B+
Retailer 16
-
$7,089 USD
£5,582 GBP
View
B+
Retailer 17
-
$9,021 USD
View
B
Retailer 18
-
$13,870 USD
View
B
Retailer 19
-
$15,943 USD
View
Most Expensive
B
Brilliant Earth
14088901Y · Oct 1
$23,150 USD
View
19 more retailers have this diamond
Prices start from $2,475 USDSave up to $20,675 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
4.00ct Round
$2,475 USD