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Radiant|Lab Grown|IGI

1.50ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG735583311

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

Certificate IGI LG735583311

Diamond specifications and retailer prices

From $326 SGD
$255 USD
As of October 30, 2026
Save $2,653 SGD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,979 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735583311 or 735583311. Listed at 16 retailers as of October 30, 2026, with prices from $326 to $2,979, a $2,653 spread on the same certified stone. Brilliant Earth lists it at $2,979. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735583311
Dimensions7.71 × 5.66 × 3.94 mm
L/W Ratio1.36
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
7.71 mm5.66 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735583311
Side View
Table 68.0%Crown 44.4°Girdle: MediumPavilion 40.4°Culet: NoneDepth 69.6%

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 30
Current: $2,979 SGD|Low: $280 SGD|High: $4,257 SGD|Avg: $1,422 SGD|-30.0%
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
October 31, 2026
Retailer 5$326 SGD
Retailer 6$366 SGD
Retailer 4$378 SGD
Retailer 13$522 SGD
Retailer 12$566 SGD
Retailer 9$569 SGD
Retailer 2$734 SGD
Retailer 11$1,038 SGD
Retailer 16$1,142 SGD
Retailer 14$1,353 SGD
Retailer 7$1,436 SGD
Retailer 8$1,563 SGD
Retailer 10$1,799 SGD
Retailer 15$2,742 SGD
Retailer 3$2,902 SGD
Brilliant Earth$2,979 SGD

35 data points across 16 retailers

16 retailers$326 SGD to $2,979 SGD

A
Cheapest Retailer
-
$326 SGD
$255 USD
A
Retailer 2
-
$366 SGD
$286 USD
View
Final sale: no returns
A
Retailer 3
-
$378 SGD
$296 USD
View
A
Retailer 4
-
$522 SGD
$408 USD
View
B+
Retailer 5
-
$566 SGD
$443 USD
View
A
Retailer 6
-
$569 SGD
$445 USD
View
A
Retailer 7
-
$734 SGD
€547 EUR
View
A
Retailer 8
-
$1,038 SGD
A$1,249 AUD
View
A
Retailer 9
-
$1,142 SGD
$893 USD
View
A
Retailer 10
-
$1,353 SGD
$1,058 USD
View
B+
Retailer 11
-
$1,436 SGD
$1,123 USD
View
B+
Retailer 12
-
$1,563 SGD
$1,223 USD
View
B+
Retailer 13
-
$1,799 SGD
£1,108 GBP
View
Retailer 14
-
$2,742 SGD
$2,145 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$2,902 SGD
$2,270 USD
View
Most Expensive
B
Brilliant Earth
21405665Y · Oct 30
$2,979 SGD
$2,330 USD
View
15 more retailers have this diamond
Prices start from $326 SGDSave up to $2,653 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
1.50ct Radiant
$326 SGD