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Radiant|Lab Grown|IGI

1.56ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG620429386

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

Certificate IGI LG620429386

Diamond specifications and retailer prices

From $346 SGD
As of November 4, 2026
Save $2,873 SGD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,615 SGD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG620429386 or 620429386. Listed at 21 retailers as of November 4, 2026, with a 830% 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

1.56
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.8°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620429386
Dimensions8.10 × 5.76 × 3.75 mm
L/W Ratio1.41
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
8.10 mm5.76 mm1.56 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620429386
Side View
Table 65.0%Crown 50.8°Girdle: MED-THKPavilion 33°Culet: NoneDepth 65.1%

Caratlytics Score

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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: Nov 4
Current: $3,219 SGD|Low: $346 SGD|High: $3,615 SGD|Avg: $1,331 SGD|-11.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 5, 2026
Retailer 12$346 SGD
Retailer 11$401 SGD
Retailer 21$429 SGD
Retailer 2$484 SGD
Retailer 3$632 SGD
Retailer 9$711 SGD
Retailer 19$759 SGD
Retailer 18$815 SGD
Retailer 13$832 SGD
Retailer 5$861 SGD
Retailer 7$1,056 SGD
Retailer 16$1,110 SGD
Retailer 20$1,317 SGD
Retailer 6$1,521 SGD
Retailer 17$1,621 SGD
Retailer 8$1,731 SGD
Retailer 10$1,774 SGD
Retailer 15$1,890 SGD
Retailer 14$2,558 SGD
Retailer 4$3,066 SGD
Brilliant Earth$3,219 SGD

11 data points across 21 retailers

21 retailers$346 SGD to $3,219 SGD

A
Cheapest Retailer
-
$346 SGD
A
Retailer 2
-
$401 SGD
View
A
Retailer 3
-
$429 SGD
View
A
Retailer 4
-
$484 SGD
View
A
Retailer 5
-
$632 SGD
View
A
Retailer 6
-
$711 SGD
View
A
Retailer 7
-
$759 SGD
View
A
Retailer 8
-
$815 SGD
View
A
Retailer 9
-
$832 SGD
View
A
Retailer 10
-
$861 SGD
View
A
Retailer 11
-
$1,056 SGD
View
B+
Retailer 12
-
$1,110 SGD
View
B+
Retailer 13
-
$1,317 SGD
View
B+
Retailer 14
-
$1,521 SGD
View
B+
Retailer 15
-
$1,621 SGD
View
B+
Retailer 16
-
$1,731 SGD
View
B+
Retailer 17
-
$1,774 SGD
View
B+
Retailer 18
-
$1,890 SGD
View
B
Retailer 19
-
$3,066 SGD
View
B
Retailer 20
-
$3,219 SGD
View
Most Expensive
Brilliant Earth
13715575B · Oct 21
$3,615 SGD
$2,830 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from $346 SGDSave up to $2,873 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
1.56ct Radiant
$346 SGD