CaratHunter
Plans
Round|Lab Grown|IGI

1.56ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG499105122

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105122

Diamond specifications and retailer prices

From €770 EUR
$860 USD
As of October 31, 2026
Save €3,486 EUR (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,256 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499105122 or 499105122. Listed at 10 retailers as of October 31, 2026, with prices from €770 to €4,256, a €3,486 spread on the same certified stone. MOH London lists it at €4,256. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105122
Dimensions7.55 × 7.58 × 4.48 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
7.55 mm7.58 mm1.56 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105122
Side View
Table 58.5%Crown 33°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 59.2%

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: Oct 31
Current: €4,256 EUR|Low: €770 EUR|High: €4,313 EUR|Avg: €1,965 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2€770 EUR
Retailer 4€1,142 EUR
Retailer 7€1,242 EUR
Retailer 9€1,280 EUR
Retailer 5€1,325 EUR
Retailer 11€1,832 EUR
Retailer 6€2,098 EUR
Retailer 10€2,469 EUR
Retailer 8€2,483 EUR
Retailer 3€2,965 EUR
MOH London€4,256 EUR

17 data points across 11 retailers

10 retailers€770 EUR to €4,256 EUR

A
Cheapest Retailer
-
€770 EUR
$860 USD
A
Retailer 2
-
€1,142 EUR
$1,276 USD
View
B+
Retailer 3
-
€1,242 EUR
$1,388 USD
View
B+
Retailer 4
-
€1,280 EUR
$1,430 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,325 EUR
$1,480 USD
View
Retailer 6
-
€1,325 EUR
$1,480 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
€2,098 EUR
$2,344 USD
View
B
Retailer 8
-
€2,469 EUR
$2,758 USD
View
B
Retailer 9
-
€2,483 EUR
$2,774 USD
View
Most Expensive
B
MOH London
LG499105122 · Nov 1
€4,256 EUR
£3,744 GBP
View
9 more retailers have this diamond
Prices start from €770 EURSave up to €3,486 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
€770 EUR