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Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG744515287

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

Certificate IGI LG744515287

Diamond specifications and retailer prices

From $364 SGD
As of November 4, 2026
Save $2,869 SGD (89%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $4,281 SGD at Brilliant Earth · As of October 17, 2026
View at Brilliant Earth

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515287 or 744515287. Listed at 32 retailers as of November 4, 2026, with a 788% 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

1.55
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515287
Dimensions5.70 × 5.70 × 3.76 mm
L/W Ratio1.00
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
5.70 mm5.70 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515287
Side View
Table 63.0%Crown 42.3°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $4,281 SGD|Low: $364 SGD|High: $4,281 SGD|Avg: $1,539 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
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Retailer 23
November 5, 2026
Retailer 23$364 SGD
Retailer 13$434 SGD
Retailer 22$526 SGD
Retailer 20$652 SGD
Retailer 21$670 SGD
Retailer 4$703 SGD
Retailer 9$813 SGD
Retailer 18$880 SGD
Retailer 14$896 SGD
Retailer 2$1,054 SGD
Retailer 11$1,123 SGD
Retailer 8$1,172 SGD
Retailer 5$1,389 SGD
Retailer 3$1,605 SGD
Retailer 10$1,738 SGD
Retailer 12$1,812 SGD
Retailer 6$1,868 SGD
Retailer 7$1,931 SGD
Retailer 19$1,994 SGD
Retailer 15$2,138 SGD
Retailer 16$3,137 SGD
Retailer 17$3,233 SGD
Brilliant Earth$4,281 SGD

33 data points across 23 retailers

32 retailers$364 SGD to $3,233 SGD

A
Cheapest Retailer
-
$364 SGD
Retailer 2
-
$380 SGD
View
Price last confirmed 28 days ago
Retailer 3
-
$404 SGD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$434 SGD
View
Final sale: no returns
Retailer 5
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$469 SGD
View
Price last confirmed 39 days ago
Retailer 6
-
$472 SGD
View
Price last confirmed 33 days ago
Retailer 7
-
$495 SGD
View
Price last confirmed 37 days ago
A
Retailer 8
-
$526 SGD
View
A
Retailer 9
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$652 SGD
View
A
Retailer 10
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$670 SGD
View
A
Retailer 11
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$703 SGD
View
A
Retailer 12
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$805 SGD
View
A
Retailer 13
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$813 SGD
View
A
Retailer 14
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$880 SGD
View
A
Retailer 15
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$896 SGD
View
Retailer 16
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$919 SGD
View
Price last confirmed 21 days ago
A
Retailer 17
-
$1,054 SGD
View
A
Retailer 18
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$1,123 SGD
View
A
Retailer 19
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$1,172 SGD
View
B+
Retailer 20
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$1,389 SGD
View
B+
Retailer 21
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$1,605 SGD
View
Retailer 22
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$1,671 SGD
View
Price last confirmed 26 days ago
B+
Retailer 23
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$1,738 SGD
View
Retailer 24
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$1,778 SGD
View
Price last confirmed 36 days ago
B+
Retailer 25
-
$1,812 SGD
View
B+
Retailer 26
-
$1,868 SGD
View
B+
Retailer 27
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$1,931 SGD
View
B+
Retailer 28
-
$1,994 SGD
View
B+
Retailer 29
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$2,138 SGD
View
Retailer 30
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$3,137 SGD
View
Price last confirmed 8 days ago
B
Retailer 31
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$3,233 SGD
View
Most Expensive
Brilliant Earth
17456976Y · Oct 17
$4,281 SGD
$3,350 USD
View
Price last confirmed 18 days ago
31 more retailers have this diamond
Prices start from $364 SGDSave up to $2,869 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
1.55ct Radiant
$364 SGD