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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 €320 EUR
$357 USD
As of October 30, 2026
Save €1,569 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,889 EUR 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 €320 to €1,889, a €1,569 spread on the same certified stone. Do Amore Diamonds lists it at €1,889. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,889 EUR|Low: €279 EUR|High: €10,544 EUR|Avg: €2,097 EUR|+30.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4€320 EUR
Retailer 7€413 EUR
Retailer 2€510 EUR
Retailer 5€540 EUR
Retailer 6€1,018 EUR
Retailer 3€1,084 EUR
Do Amore Diamonds€1,889 EUR
Retailer 8€10,544 EUR

41 data points across 8 retailers

14 retailers€320 EUR to €1,889 EUR

Retailer 1
-
€192 EUR
$215 USD
Price last confirmed 13 days ago
Retailer 2
-
€224 EUR
$250 USD
View
Price last confirmed 16 days ago
Retailer 3
-
€239 EUR
$267 USD
View
Price last confirmed 14 days ago
Retailer 4
-
€239 EUR
$267 USD
View
Price last confirmed 12 days ago
B
Retailer 5
-
€320 EUR
$357 USD
View
Retailer 6
-
€413 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
€510 EUR
£449 GBP
View
B+
Retailer 8
-
€540 EUR
$603 USD
View
B
Retailer 9
-
€669 EUR
£589 GBP
View
Retailer 10
-
€849 EUR
$948 USD
View
Price last confirmed 14 days ago
B
Retailer 11
-
€1,018 EUR
$1,138 USD
View
B
Retailer 12
-
€1,084 EUR
£954 GBP
View
C
Retailer 13
-
€1,486 EUR
$1,660 USD
View
Most Expensive
C
Do Amore Diamonds
27-41C0A660E · Oct 30
€1,889 EUR
$2,110 USD
View
13 more retailers have this diamond
Prices start from €320 EURSave up to €1,569 EUR

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
€320 EUR