Radiant|Lab Grown|IGI

1.56ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG537215993

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

Certificate IGI LG537215993

Diamond specifications and retailer prices

From €163 EUR
$182 USD
As of October 30, 2026
Save €766 EUR (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €929 EUR at MOH London · As of October 29, 2026
View at MOH London

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537215993 or 537215993. Listed at 18 retailers as of October 29, 2026, with prices from €163 to €929, a €766 spread on the same certified stone. MOH London lists it at €929. 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

1.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537215993
Dimensions8.39 × 5.66 × 3.80 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
8.39 mm5.66 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537215993
Side View
Table 61.0%Crown 32.2°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 67.1%

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: Oct 30
Current: €929 EUR|Low: €153 EUR|High: €1,003 EUR|Avg: €473 EUR|+0.5%
MOH London
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
October 30, 2026
Retailer 9€163 EUR
Retailer 6€198 EUR
Retailer 14€202 EUR
Retailer 8€209 EUR
Retailer 11€260 EUR
Retailer 3€331 EUR
Retailer 10€357 EUR
Retailer 12€366 EUR
Retailer 7€499 EUR
Retailer 4€508 EUR
Retailer 5€636 EUR
Retailer 13€700 EUR
Retailer 15€774 EUR
Retailer 2€868 EUR
MOH London€929 EUR

39 data points across 15 retailers

18 retailers€163 EUR to €929 EUR

A
Cheapest Retailer
-
€163 EUR
$182 USD
A
Retailer 2
-
€185 EUR
$207 USD
View
A
Retailer 3
-
€198 EUR
$221 USD
View
A
Retailer 4
-
€202 EUR
$226 USD
View
A
Retailer 5
-
€209 EUR
$233 USD
View
Final sale: no returns
A
Retailer 6
-
€260 EUR
£229 GBP
View
A
Retailer 7
-
€331 EUR
View
B+
Retailer 8
-
€357 EUR
$399 USD
View
A
Retailer 9
-
€366 EUR
£322 GBP
View
A
Retailer 10
-
€422 EUR
$472 USD
View
B+
Retailer 11
-
€499 EUR
$558 USD
View
B+
Retailer 12
-
€508 EUR
$567 USD
View
B+
Retailer 13
-
€636 EUR
$710 USD
View
B
Retailer 14
-
€656 EUR
£577 GBP
View
B+
Retailer 15
-
€700 EUR
$782 USD
View
Retailer 16
-
€774 EUR
$865 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
€868 EUR
$970 USD
View
Most Expensive
B
MOH London
LG537215993 · Oct 29
€929 EUR
£817 GBP
View
17 more retailers have this diamond
Prices start from €163 EURSave up to €766 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.

A
1.56ct Radiant
€163 EUR