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Marquise|Lab Grown|IGI

1.43ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436072886

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436072886

Diamond specifications and retailer prices

From €718 EUR
$805 USD
As of October 30, 2026
Save €2,403 EUR (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,121 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.43ct lab-grown marquise diamond

This 1.43ct lab-grown marquise 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 LG436072886 or 436072886. Listed at 12 retailers as of October 30, 2026, with prices from €718 to €3,121, a €2,403 spread on the same certified stone. MOH London lists it at €3,121. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072886
Dimensions10.73 × 5.94 × 3.82 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.73 mm5.94 mm1.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072886
Side View
Table 57.5%Crown 36.2°Girdle: ThickPavilion 40.8°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €3,121 EUR|Low: €689 EUR|High: €3,163 EUR|Avg: €1,496 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
November 1, 2026
Retailer 8€718 EUR
Retailer 11€804 EUR
Retailer 9€833 EUR
Retailer 2€856 EUR
Retailer 5€964 EUR
Retailer 4€984 EUR
Retailer 6€990 EUR
Retailer 13€1,295 EUR
Retailer 10€1,343 EUR
Retailer 7€1,980 EUR
Retailer 3€2,384 EUR
Retailer 12€2,549 EUR
MOH London€3,121 EUR

23 data points across 13 retailers

12 retailers€718 EUR to €3,121 EUR

B+
Cheapest Retailer
-
€718 EUR
$805 USD
B+
Retailer 2
-
€781 EUR
$876 USD
View
B+
Retailer 3
-
€804 EUR
$902 USD
View
Final sale: no returns
B+
Retailer 4
-
€833 EUR
$934 USD
View
Retailer 5
-
€833 EUR
$934 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
€856 EUR
$960 USD
View
B+
Retailer 7
-
€990 EUR
$1,110 USD
View
B+
Retailer 8
-
€1,343 EUR
$1,506 USD
View
B+
Retailer 9
-
€1,980 EUR
$2,221 USD
View
B+
Retailer 10
-
€2,340 EUR
$2,625 USD
View
B+
Retailer 11
-
€2,549 EUR
$2,859 USD
View
Most Expensive
B+
MOH London
LG436072886 · Nov 1
€3,121 EUR
£2,756 GBP
View
11 more retailers have this diamond
Prices start from €718 EURSave up to €2,403 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.

B+
1.43ct Marquise
€718 EUR