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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 $1,150 AUD
As of November 6, 2026
Save $3,850 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,000 AUD at MOH London · As of November 3, 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 November 3, 2026, with prices from $1,150 to $5,000, a $3,850 spread on the same certified stone. MOH London lists it at $5,000. 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
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: Nov 6
Current: $5,000 AUD|Low: $1,104 AUD|High: $5,067 AUD|Avg: $2,401 AUD
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$1,150 AUD
Retailer 11$1,289 AUD
Retailer 9$1,334 AUD
Retailer 2$1,371 AUD
Retailer 5$1,544 AUD
Retailer 4$1,577 AUD
Retailer 6$1,586 AUD
Retailer 13$2,076 AUD
Retailer 10$2,151 AUD
Retailer 7$3,173 AUD
Retailer 3$3,818 AUD
Retailer 12$4,083 AUD
MOH London$5,000 AUD

21 data points across 13 retailers

12 retailers$1,150 AUD to $5,000 AUD

B+
Cheapest Retailer
-
$1,150 AUD
B+
Retailer 2
-
$1,251 AUD
View
B+
Retailer 3
-
$1,289 AUD
View
Final sale: no returns
B+
Retailer 4
-
$1,334 AUD
View
Retailer 5
-
$1,334 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,371 AUD
View
B+
Retailer 7
-
$1,586 AUD
View
B+
Retailer 8
-
$2,151 AUD
View
B+
Retailer 9
-
$3,173 AUD
View
B+
Retailer 10
-
$3,750 AUD
View
B+
Retailer 11
-
$4,083 AUD
View
Most Expensive
B+
MOH London
LG436072886 · Nov 3
$5,000 AUD
£2,756 GBP
View
11 more retailers have this diamond
Prices start from $1,150 AUDSave up to $3,850 AUD

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
$1,150 AUD