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1.55ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG500163392

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500163392

Diamond specifications and retailer prices

From €767 EUR
$860 USD
As of November 2, 2026
Save €3,217 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,983 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct 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 LG500163392 or 500163392. Listed at 11 retailers as of November 1, 2026, with prices from €767 to €3,983, a €3,217 spread on the same certified stone. MOH London lists it at €3,983. 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

1.55
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500163392
Dimensions7.45 × 7.43 × 4.56 mm
L/W Ratio1.00
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
7.45 mm7.43 mm1.55 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500163392
Side View
Table 59.0%Crown 33.2°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.3%

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: Nov 2
Current: €3,983 EUR|Low: €767 EUR|High: €4,032 EUR|Avg: €1,847 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€1,069 EUR
Retailer 6€1,197 EUR
Retailer 4€1,240 EUR
Retailer 7€1,395 EUR
Retailer 9€1,756 EUR
Retailer 5€1,967 EUR
Retailer 8€2,375 EUR
MOH London€3,983 EUR

14 data points across 9 retailers

11 retailers€767 EUR to €3,983 EUR

A
Cheapest Retailer
-
€767 EUR
$860 USD
A
Retailer 2
-
€1,069 EUR
$1,199 USD
View
B+
Retailer 3
-
€1,163 EUR
$1,304 USD
View
B+
Retailer 4
-
€1,197 EUR
$1,343 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,240 EUR
$1,391 USD
View
Retailer 6
-
€1,240 EUR
$1,391 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
€1,395 EUR
$1,565 USD
View
B
Retailer 8
-
€1,967 EUR
$2,206 USD
View
B
Retailer 9
-
€2,324 EUR
$2,607 USD
View
B
Retailer 10
-
€2,375 EUR
$2,664 USD
View
Most Expensive
B
MOH London
LG500163392 · Nov 1
€3,983 EUR
£3,518 GBP
View
10 more retailers have this diamond
Prices start from €767 EURSave up to €3,217 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
1.55ct Round
€767 EUR