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Round|Lab Grown|IGI

1.43ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG499189128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499189128

Diamond specifications and retailer prices

From €645 EUR
As of November 5, 2026
Save €2,638 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,283 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1.43ct lab-grown round diamond

This 1.43ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499189128 or 499189128. Listed at 11 retailers as of November 5, 2026, with prices from €645 to €3,283, a €2,638 spread on the same certified stone. MOH London lists it at €3,283. 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

1.43
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499189128
Dimensions7.22 × 7.25 × 4.47 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
7.22 mm7.25 mm1.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499189128
Side View
Table 54.5%Crown 34.9°GirdlePavilion 40.3°Culet: NoneDepth 61.8%

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 5
Current: €3,283 EUR|Low: €645 EUR|High: €3,336 EUR|Avg: €1,397 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4€645 EUR
Retailer 3€837 EUR
Retailer 7€937 EUR
Retailer 5€971 EUR
Retailer 8€971 EUR
Retailer 9€1,129 EUR
Retailer 10€1,428 EUR
Retailer 6€1,554 EUR
Retailer 2€2,159 EUR
MOH London€3,283 EUR

15 data points across 10 retailers

11 retailers€645 EUR to €3,283 EUR

A
Cheapest Retailer
-
€645 EUR
B+
Retailer 2
-
€837 EUR
View
B+
Retailer 3
-
€911 EUR
View
B+
Retailer 4
-
€937 EUR
View
Final sale: no returns
Retailer 5
-
€971 EUR
View
Price last confirmed 25 days ago
B+
Retailer 6
-
€971 EUR
View
B+
Retailer 7
-
€1,129 EUR
View
B
Retailer 8
-
€1,554 EUR
View
B
Retailer 9
-
€2,159 EUR
View
B
Retailer 10
-
€2,729 EUR
View
Most Expensive
B
MOH London
LG499189128 · Nov 5
€3,283 EUR
£2,886 GBP
View
10 more retailers have this diamond
Prices start from €645 EURSave up to €2,638 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
1.43ct Round
€645 EUR