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Radiant|Lab Grown|IGI

1.56ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG614315354

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

Certificate IGI LG614315354

Diamond specifications and retailer prices

From €161 EUR
$180 USD
As of October 30, 2026
Save €776 EUR (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €937 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 LG614315354 or 614315354. Listed at 11 retailers as of October 29, 2026, with prices from €161 to €937, a €776 spread on the same certified stone. MOH London lists it at €937. 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 angle44.5°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614315354
Dimensions8.16 × 5.71 × 3.80 mm
L/W Ratio1.43
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
8.16 mm5.71 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614315354
Side View
Table 64.0%Crown 44.5°Girdle: STK-THKPavilion 35°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
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: €937 EUR|Low: €161 EUR|High: €1,745 EUR|Avg: €505 EUR
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
October 30, 2026
Retailer 3€161 EUR
Retailer 14€186 EUR
Retailer 8€200 EUR
Retailer 12€229 EUR
Retailer 2€256 EUR
Retailer 4€303 EUR
Retailer 13€354 EUR
Retailer 7€359 EUR
Retailer 11€422 EUR
Retailer 9€433 EUR
Retailer 10€641 EUR
Retailer 5€697 EUR
MOH London€937 EUR
Retailer 6€1,745 EUR

4 data points across 14 retailers

11 retailers€161 EUR to €937 EUR

A
Cheapest Retailer
-
€161 EUR
$180 USD
A
Retailer 2
-
€186 EUR
$208 USD
View
A
Retailer 3
-
€200 EUR
$223 USD
View
A
Retailer 4
-
€229 EUR
HK$2,000 HKD
View
A
Retailer 5
-
€256 EUR
£225 GBP
View
B+
Retailer 6
-
€354 EUR
$395 USD
View
A
Retailer 7
-
€359 EUR
£316 GBP
View
A
Retailer 8
-
€422 EUR
$472 USD
View
A
Retailer 9
-
€433 EUR
$484 USD
View
B+
Retailer 10
-
€641 EUR
$716 USD
View
Most Expensive
B
MOH London
LG614315354 · Oct 29
€937 EUR
£824 GBP
View
10 more retailers have this diamond
Prices start from €161 EURSave up to €776 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
€161 EUR