Radiant|Lab Grown|IGI

4.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG628419062

Certificate IGI LG628419062

Diamond specifications and retailer prices

From $1,927 USD
£1,517 GBP
Save $13,143 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $15,070 USD at Brilliant Earth
View at Brilliant Earth

About this 4.15ct lab-grown radiant diamond

This 4.15ct lab-grown radiant 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 LG628419062 or 628419062. Listed at 21 retailers, with prices from $1,927 to $15,070 at Brilliant Earth, a $13,143 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

4.15
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628419062
Dimensions11.37 × 8.12 × 5.22 mm
L/W Ratio1.40
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
11.37 mm8.12 mm4.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628419062
Side View
Table 60.0%Crown 44.9°Girdle: MediumPavilion 33.4°Culet: NoneDepth 64.3%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $14,920 USD|Low: $1,634 USD|High: $15,070 USD|Avg: $5,646 USD|-1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
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Retailer 19
Retailer 20
October 1, 2026
Retailer 13$1,927 USD
Retailer 4$1,976 USD
Retailer 19$2,212 USD
Retailer 18$2,260 USD
Retailer 20$2,292 USD
Retailer 15$2,460 USD
Retailer 12$2,726 USD
Retailer 17$3,151 USD
Retailer 5$3,206 USD
Retailer 14$3,278 USD
Retailer 8$3,538 USD
Retailer 9$3,839 USD
Retailer 7$4,343 USD
Retailer 11$5,868 USD
Retailer 3$6,542 USD
Retailer 10$6,580 USD
Retailer 2$6,624 USD
Retailer 16$6,674 USD
Retailer 6$8,023 USD
Brilliant Earth$14,920 USD

18 data points across 20 retailers

21 retailers$1,927 USD to $15,070 USD

A
Cheapest Retailer
-
$1,927 USD
£1,517 GBP
A
Retailer 2
-
$1,976 USD
View
A
Retailer 3
-
$2,212 USD
View
A
Retailer 4
-
$2,260 USD
View
A
Retailer 5
-
$2,292 USD
View
A
Retailer 6
-
$2,460 USD
View
A
Retailer 7
-
$2,726 USD
HK$21,300 HKD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$3,151 USD
View
A
Retailer 9
-
$3,213 USD
£2,530 GBP
View
A
Retailer 10
-
$3,278 USD
View
A
Retailer 11
-
$3,538 USD
View
A
Retailer 12
-
$3,839 USD
€3,656 EUR
View
A
Retailer 13
-
$4,343 USD
£3,420 GBP
View
A
Retailer 14
-
$5,868 USD
View
Price last confirmed 38 days ago
A
Retailer 15
-
$6,542 USD
View
A
Retailer 16
-
$6,580 USD
View
A
Retailer 17
-
$6,624 USD
£5,216 GBP
View
A
Retailer 18
-
$6,674 USD
View
B+
Retailer 19
-
$8,023 USD
View
B
Retailer 20
-
$14,920 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
14086409A · Sep 29
$15,070 USD
View
20 more retailers have this diamond
Prices start from $1,927 USDSave up to $13,143 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
4.15ct Radiant
$1,927 USD