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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG593386843

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

Certificate IGI LG593386843

Diamond specifications and retailer prices

From $440 SGD
$344 USD
As of October 30, 2026
Save $4,009 SGD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,449 SGD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct 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 LG593386843 or 593386843. Listed at 23 retailers as of October 30, 2026, with a 912% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593386843
Dimensions7.83 × 5.74 × 3.92 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
7.83 mm5.74 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593386843
Side View
Table 62.0%Crown 42.4°Girdle: MediumPavilion 36°Culet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $4,449 SGD|Low: $422 SGD|High: $4,449 SGD|Avg: $1,324 SGD
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 3$440 SGD
Retailer 7$492 SGD
Retailer 4$545 SGD
Retailer 11$563 SGD
Retailer 10$731 SGD
Retailer 15$741 SGD
Retailer 14$937 SGD
Retailer 2$960 SGD
Retailer 9$979 SGD
Retailer 13$1,266 SGD
Retailer 16$1,314 SGD
Retailer 6$1,753 SGD
Retailer 5$2,060 SGD
Retailer 8$2,113 SGD
Retailer 12$2,141 SGD
Brilliant Earth$4,449 SGD

32 data points across 16 retailers

23 retailers$440 SGD to $4,449 SGD

A
Cheapest Retailer
-
$440 SGD
$344 USD
A
Retailer 2
-
$492 SGD
$385 USD
View
Final sale: no returns
A
Retailer 3
-
$510 SGD
$399 USD
View
A
Retailer 4
-
$545 SGD
$426 USD
View
A
Retailer 5
-
$545 SGD
$426 USD
View
A
Retailer 6
-
$563 SGD
£347 GBP
View
A
Retailer 7
-
$731 SGD
$572 USD
View
A
Retailer 8
-
$741 SGD
$580 USD
View
A
Retailer 9
-
$872 SGD
$682 USD
View
A
Retailer 10
-
$937 SGD
ZAR 11,839 ZAR
View
A
Retailer 11
-
$960 SGD
€715 EUR
View
A
Retailer 12
-
$979 SGD
£603 GBP
View
A
Retailer 13
-
$1,266 SGD
A$1,523 AUD
View
B+
Retailer 14
-
$1,314 SGD
$1,028 USD
View
B+
Retailer 15
-
$1,318 SGD
$1,031 USD
View
B+
Retailer 16
-
$1,753 SGD
$1,371 USD
View
B+
Retailer 17
-
$1,766 SGD
£1,088 GBP
View
B+
Retailer 18
-
$1,807 SGD
$1,413 USD
View
B+
Retailer 19
-
$2,060 SGD
$1,611 USD
View
B+
Retailer 20
-
$2,113 SGD
$1,653 USD
View
B+
Retailer 21
-
$2,141 SGD
£1,319 GBP
View
B
Retailer 22
-
$4,449 SGD
$3,480 USD
View
Most Expensive
Brilliant Earth
21385297A · Oct 8
$4,449 SGD
$3,480 USD
View
Price last confirmed 23 days ago
22 more retailers have this diamond
Prices start from $440 SGDSave up to $4,009 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
1.51ct Radiant
$440 SGD