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Radiant|Lab Grown|IGI

4.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG772674455

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

Certificate IGI LG772674455

Diamond specifications and retailer prices

From $2,944 SGD
$2,297 USD
As of October 29, 2026
Save $15,756 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,700 SGD at Brilliant Earth · As of October 29, 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 LG772674455 or 772674455. Listed at 14 retailers as of October 29, 2026, with prices from $2,944 to $18,700, a $15,756 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 angle47.6°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772674455
Dimensions10.10 × 8.06 × 5.59 mm
L/W Ratio1.25
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.10 mm8.06 mm4.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772674455
Side View
Table 68.0%Crown 47.6°Girdle: MED-STKPavilion 32.8°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
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 29
Current: $18,700 SGD|Low: $2,944 SGD|High: $611,755 SGD|Avg: $28,911 SGD|-3.1%
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
October 30, 2026
Retailer 3$2,944 SGD
Retailer 2$3,757 SGD
Retailer 13$3,787 SGD
Retailer 12$4,064 SGD
Retailer 8$4,171 SGD
Retailer 6$5,639 SGD
Retailer 10$7,139 SGD
Retailer 9$7,147 SGD
Retailer 7$7,576 SGD
Retailer 5$8,485 SGD
Retailer 11$9,287 SGD
Retailer 4$12,408 SGD
Brilliant Earth$18,700 SGD

30 data points across 13 retailers

14 retailers$2,944 SGD to $18,700 SGD

A
Cheapest Retailer
-
$2,944 SGD
$2,297 USD
A
Retailer 2
-
$3,757 SGD
£2,308 GBP
View
A
Retailer 3
-
$3,787 SGD
$2,955 USD
View
A
Retailer 4
-
$4,064 SGD
$3,171 USD
View
A
Retailer 5
-
$4,171 SGD
€3,099 EUR
View
Price last confirmed 7 days ago
A
Retailer 6
-
$5,639 SGD
ZAR 71,075 ZAR
View
A
Retailer 7
-
$6,822 SGD
$5,323 USD
View
A
Retailer 8
-
$7,139 SGD
$5,570 USD
View
A
Retailer 9
-
$7,147 SGD
$5,576 USD
View
A
Retailer 10
-
$7,576 SGD
£4,654 GBP
View
Retailer 11
-
$8,485 SGD
$6,620 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$9,287 SGD
$7,246 USD
View
Retailer 13
-
$12,408 SGD
A$14,894 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
20043916A · Oct 29
$18,700 SGD
$14,590 USD
View
13 more retailers have this diamond
Prices start from $2,944 SGDSave up to $15,756 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
$2,944 SGD