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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 $805 USD
As of November 6, 2026
Save $2,695 USD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,500 USD 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 $805 to $3,500, a $2,695 spread on the same certified stone. MOH London lists it at $3,500. 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: Nov 6
Current: $3,500 USD|Low: $773 USD|High: $3,547 USD|Avg: $1,681 USD
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$805 USD
Retailer 11$902 USD
Retailer 9$934 USD
Retailer 2$960 USD
Retailer 5$1,081 USD
Retailer 4$1,104 USD
Retailer 6$1,110 USD
Retailer 13$1,453 USD
Retailer 10$1,506 USD
Retailer 7$2,221 USD
Retailer 3$2,673 USD
Retailer 12$2,858 USD
MOH London$3,500 USD

21 data points across 13 retailers

12 retailers$805 USD to $3,500 USD

B+
Cheapest Retailer
-
$805 USD
B+
Retailer 2
-
$876 USD
View
B+
Retailer 3
-
$902 USD
View
Final sale: no returns
B+
Retailer 4
-
$934 USD
View
Retailer 5
-
$934 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$960 USD
View
B+
Retailer 7
-
$1,110 USD
View
B+
Retailer 8
-
$1,506 USD
View
B+
Retailer 9
-
$2,221 USD
View
B+
Retailer 10
-
$2,625 USD
View
B+
Retailer 11
-
$2,858 USD
View
Most Expensive
B+
MOH London
LG436072886 · Nov 3
$3,500 USD
£2,756 GBP
View
11 more retailers have this diamond
Prices start from $805 USDSave up to $2,695 USD

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
$805 USD