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1.43ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG593389585

Shape and cutting style on the report: Round brilliant

Certificate IGI LG593389585

Diamond specifications and retailer prices

From $178 USD
As of October 29, 2026
Save $966 USD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,144 USD at MOH London · As of October 29, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG593389585 or 593389585. Listed at 8 retailers as of October 29, 2026, with prices from $178 to $1,144, a $966 spread on the same certified stone. MOH London lists it at $1,144. 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
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593389585
Dimensions7.24 × 7.20 × 4.43 mm
L/W Ratio1.01
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
7.24 mm7.20 mm1.43 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593389585
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,144 USD|Low: $142 USD|High: $1,144 USD|Avg: $591 USD|+2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 4$178 USD
Retailer 8$197 USD
Retailer 2$206 USD
Retailer 7$391 USD
Retailer 5$555 USD
Retailer 9$700 USD
Retailer 10$700 USD
Retailer 3$749 USD
Retailer 6$783 USD
MOH London$1,144 USD

15 data points across 10 retailers

8 retailers$178 USD to $1,144 USD

A
Cheapest Retailer
-
$178 USD
A
Retailer 2
-
$197 USD
View
Final sale: no returns
A
Retailer 3
-
$206 USD
View
B+
Retailer 4
-
$391 USD
View
Retailer 5
-
$555 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$749 USD
View
B
Retailer 7
-
$783 USD
View
Most Expensive
B
MOH London
LG593389585 · Oct 29
$1,144 USD
£901 GBP
View
7 more retailers have this diamond
Prices start from $178 USDSave up to $966 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.

A
1.43ct Round
$178 USD