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Radiant|Lab Grown|IGI

1.43ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG506195332

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG506195332

Diamond specifications and retailer prices

From $1,146 AUD
$805 USD
As of October 30, 2026
Save $3,837 AUD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,983 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.43ct lab-grown radiant diamond

This 1.43ct lab-grown radiant 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 LG506195332 or 506195332. Listed at 10 retailers as of October 30, 2026, with prices from $1,146 to $4,983, a $3,837 spread on the same certified stone. MOH London lists it at $4,983. 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 angle36.5°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195332
Dimensions8.07 × 5.62 × 3.58 mm
L/W Ratio1.44
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
8.07 mm5.62 mm1.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195332
Side View
Table 65.5%Crown 36.5°Girdle: MediumPavilion 29.1°Culet: NoneDepth 63.7%

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: Oct 30
Current: $4,983 AUD|Low: $1,100 AUD|High: $5,050 AUD|Avg: $2,337 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$1,146 AUD
Retailer 9$1,247 AUD
Retailer 2$1,310 AUD
Retailer 6$1,330 AUD
Retailer 3$1,580 AUD
Retailer 10$2,068 AUD
Retailer 8$2,144 AUD
Retailer 4$3,162 AUD
Retailer 7$3,737 AUD
MOH London$4,983 AUD

24 data points across 10 retailers

10 retailers$1,146 AUD to $4,983 AUD

A
Cheapest Retailer
-
$1,146 AUD
$805 USD
B+
Retailer 2
-
$1,247 AUD
$876 USD
View
A
Retailer 3
-
$1,310 AUD
$920 USD
View
B+
Retailer 4
-
$1,330 AUD
$934 USD
View
Retailer 5
-
$1,330 AUD
$934 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,580 AUD
$1,110 USD
View
B+
Retailer 7
-
$2,144 AUD
$1,506 USD
View
B+
Retailer 8
-
$3,162 AUD
$2,221 USD
View
B+
Retailer 9
-
$3,737 AUD
$2,625 USD
View
Most Expensive
B+
MOH London
LG506195332 · Nov 1
$4,983 AUD
£2,756 GBP
View
9 more retailers have this diamond
Prices start from $1,146 AUDSave up to $3,837 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.

A
1.43ct Radiant
$1,146 AUD