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Round|Lab Grown|IGI

1.56ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG494173834

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494173834

Diamond specifications and retailer prices

From €767 EUR
$860 USD
As of November 2, 2026
Save €3,242 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,008 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494173834 or 494173834. Listed at 11 retailers as of November 1, 2026, with prices from €767 to €4,008, a €3,242 spread on the same certified stone. MOH London lists it at €4,008. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494173834
Dimensions7.62 × 7.57 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.62 mm7.57 mm1.56 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494173834
Side View
Table 59.0%Crown 32.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €4,008 EUR|Low: €767 EUR|High: €4,057 EUR|Avg: €1,824 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2€767 EUR
Retailer 3€1,075 EUR
Retailer 6€1,205 EUR
Retailer 4€1,247 EUR
Retailer 7€1,400 EUR
Retailer 9€1,766 EUR
Retailer 5€1,978 EUR
Retailer 8€2,390 EUR
MOH London€4,008 EUR

13 data points across 9 retailers

11 retailers€767 EUR to €4,008 EUR

A
Cheapest Retailer
-
€767 EUR
$860 USD
A
Retailer 2
-
€1,075 EUR
$1,206 USD
View
B+
Retailer 3
-
€1,171 EUR
$1,313 USD
View
B+
Retailer 4
-
€1,205 EUR
$1,351 USD
View
Final sale: no returns
Retailer 5
-
€1,247 EUR
$1,399 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
€1,247 EUR
$1,399 USD
View
B+
Retailer 7
-
€1,400 EUR
$1,570 USD
View
B
Retailer 8
-
€1,978 EUR
$2,219 USD
View
B
Retailer 9
-
€2,339 EUR
$2,623 USD
View
B
Retailer 10
-
€2,390 EUR
$2,681 USD
View
Most Expensive
B
MOH London
LG494173834 · Nov 1
€4,008 EUR
£3,540 GBP
View
10 more retailers have this diamond
Prices start from €767 EURSave up to €3,242 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 Round
€767 EUR