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Radiant|Lab Grown|IGI

1.55ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG641483559

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

Certificate IGI LG641483559

Diamond specifications and retailer prices

From $233 SGD
$182 USD
As of October 30, 2026
Save $1,218 SGD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,451 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG641483559 or 641483559. Listed at 19 retailers as of October 30, 2026, with prices from $233 to $1,451, a $1,218 spread on the same certified stone. Reve Diamonds lists it at $1,451. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641483559
Dimensions8.24 × 5.68 × 3.73 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.24 mm5.68 mm1.55 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641483559
Side View
Table 63.0%Crown 43°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 65.7%

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: Oct 30
Current: $1,291 SGD|Low: $217 SGD|High: $1,470 SGD|Avg: $623 SGD|-12.2%
Retailer 1
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
Reve Diamonds
October 30, 2026
Retailer 8$233 SGD
Retailer 6$281 SGD
Retailer 13$288 SGD
Retailer 7$297 SGD
Retailer 10$369 SGD
Retailer 2$472 SGD
Retailer 9$508 SGD
Retailer 11$519 SGD
Retailer 4$720 SGD
Retailer 5$903 SGD
Retailer 12$994 SGD
Retailer 3$1,106 SGD
Retailer 1$1,291 SGD
Retailer 14$1,320 SGD
Reve Diamonds$1,451 SGD

36 data points across 15 retailers

19 retailers$233 SGD to $1,451 SGD

A
Cheapest Retailer
-
$233 SGD
$182 USD
A
Retailer 2
-
$262 SGD
$205 USD
View
A
Retailer 3
-
$281 SGD
$220 USD
View
A
Retailer 4
-
$288 SGD
$225 USD
View
A
Retailer 5
-
$297 SGD
$232 USD
View
Final sale: no returns
A
Retailer 6
-
$369 SGD
£228 GBP
View
Retailer 7
-
$472 SGD
€352 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$508 SGD
$397 USD
View
A
Retailer 9
-
$519 SGD
£320 GBP
View
A
Retailer 10
-
$596 SGD
$466 USD
View
B+
Retailer 11
-
$711 SGD
$556 USD
View
B+
Retailer 12
-
$720 SGD
$563 USD
View
B
Retailer 13
-
$903 SGD
$706 USD
View
B+
Retailer 14
-
$994 SGD
$778 USD
View
B+
Retailer 15
-
$1,009 SGD
£621 GBP
View
Retailer 16
-
$1,106 SGD
$865 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$1,291 SGD
$1,010 USD
View
B
Retailer 18
-
$1,320 SGD
£813 GBP
View
Most Expensive
B
Reve Diamonds
27F484ECB · Oct 30
$1,451 SGD
$1,135 USD
View
18 more retailers have this diamond
Prices start from $233 SGDSave up to $1,218 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
$233 SGD