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Radiant|Lab Grown|IGI

1.55ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG528208181

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

Certificate IGI LG528208181

Diamond specifications and retailer prices

From $456 SGD
$357 USD
As of October 30, 2026
Save $2,241 SGD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,697 SGD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore 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 standard cut grade and certified by IGI LG528208181 or 528208181. Listed at 14 retailers as of October 30, 2026, with prices from $456 to $2,697, a $2,241 spread on the same certified stone. Do Amore Diamonds lists it at $2,697. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528208181
Dimensions8.41 × 5.70 × 3.84 mm
L/W Ratio1.48
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
8.41 mm5.70 mm1.55 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528208181
Side View
Table 65.5%Crown 42°Girdle: MediumPavilion 35.7°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,697 SGD|Low: $399 SGD|High: $15,060 SGD|Avg: $3,003 SGD|+30.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$456 SGD
Retailer 7$589 SGD
Retailer 2$729 SGD
Retailer 5$771 SGD
Retailer 6$1,455 SGD
Retailer 3$1,549 SGD
Do Amore Diamonds$2,697 SGD
Retailer 8$15,060 SGD

42 data points across 8 retailers

14 retailers$456 SGD to $2,697 SGD

Retailer 1
-
$275 SGD
$215 USD
Price last confirmed 13 days ago
Retailer 2
-
$320 SGD
$250 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$341 SGD
$267 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$341 SGD
$267 USD
View
Price last confirmed 12 days ago
B
Retailer 5
-
$456 SGD
$357 USD
View
Retailer 6
-
$589 SGD
€439 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$729 SGD
£449 GBP
View
B+
Retailer 8
-
$771 SGD
$603 USD
View
B
Retailer 9
-
$955 SGD
£589 GBP
View
Retailer 10
-
$1,212 SGD
$948 USD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$1,455 SGD
$1,138 USD
View
B
Retailer 12
-
$1,549 SGD
£954 GBP
View
C
Retailer 13
-
$2,122 SGD
$1,660 USD
View
Most Expensive
C
Do Amore Diamonds
27-41C0A660E · Oct 30
$2,697 SGD
$2,110 USD
View
13 more retailers have this diamond
Prices start from $456 SGDSave up to $2,241 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.

B+
1.55ct Radiant
$456 SGD