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Radiant|Lab Grown|IGI

4.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG628419062

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG628419062

Diamond specifications and retailer prices

From $2,089 SGD
£1,283 GBP
As of October 30, 2026
Save $16,611 SGD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $18,700 SGD at Brilliant Earth · As of October 28, 2026
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 22 retailers as of October 28, 2026, with prices from $2,089 to $18,700, a $16,611 spread on the same certified stone. Brilliant Earth lists it at $18,700. 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
Colour
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+
Exceptional
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 30
Current: $18,700 SGD|Low: $2,089 SGD|High: $18,713 SGD|Avg: $5,135 SGD|-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
October 30, 2026
Retailer 2$2,089 SGD
Retailer 5$2,156 SGD
Retailer 6$2,413 SGD
Retailer 13$2,501 SGD
Retailer 3$2,551 SGD
Retailer 11$2,826 SGD
Retailer 12$3,544 SGD
Retailer 8$3,576 SGD
Retailer 10$3,996 SGD
Retailer 16$4,686 SGD
Retailer 9$4,924 SGD
Retailer 19$5,176 SGD
Retailer 14$5,322 SGD
Retailer 4$6,737 SGD
Retailer 18$7,103 SGD
Retailer 15$7,178 SGD
Retailer 17$7,236 SGD
Retailer 7$8,773 SGD
Brilliant Earth$18,700 SGD

21 data points across 19 retailers

22 retailers$2,089 SGD to $18,700 SGD

A+
Cheapest Retailer
-
$2,089 SGD
£1,283 GBP
A
Retailer 2
-
$2,156 SGD
$1,682 USD
View
A
Retailer 3
-
$2,413 SGD
$1,883 USD
View
Final sale: no returns
A
Retailer 4
-
$2,501 SGD
$1,951 USD
View
A
Retailer 5
-
$2,551 SGD
$1,990 USD
View
Retailer 6
-
$2,826 SGD
$2,205 USD
View
Price last confirmed 19 days ago
Retailer 7
-
$3,494 SGD
HK$21,300 HKD
View
Price last confirmed 56 days ago
A
Retailer 8
-
$3,544 SGD
£2,177 GBP
View
A
Retailer 9
-
$3,576 SGD
$2,790 USD
View
A
Retailer 10
-
$3,996 SGD
$3,118 USD
View
A
Retailer 11
-
$4,686 SGD
$3,656 USD
View
A
Retailer 12
-
$4,924 SGD
€3,659 EUR
View
Retailer 13
-
$4,941 SGD
$3,855 USD
View
Price last confirmed 24 days ago
A
Retailer 14
-
$5,176 SGD
£3,180 GBP
View
A
Retailer 15
-
$5,322 SGD
ZAR 67,077 ZAR
View
A
Retailer 16
-
$6,737 SGD
$5,256 USD
View
A
Retailer 17
-
$7,103 SGD
$5,542 USD
View
A
Retailer 18
-
$7,178 SGD
£4,410 GBP
View
A
Retailer 19
-
$7,236 SGD
$5,646 USD
View
Retailer 20
-
$8,434 SGD
$6,580 USD
View
Price last confirmed 31 days ago
A
Retailer 21
-
$8,773 SGD
$6,845 USD
View
Most Expensive
B
Brilliant Earth
14086409A · Oct 28
$18,700 SGD
$14,590 USD
View
21 more retailers have this diamond
Prices start from $2,089 SGDSave up to $16,611 SGD

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+
4.15ct Radiant
$2,089 SGD