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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 £601 GBP
$805 USD
As of October 30, 2026
Save £2,011 GBP (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,612 GBP 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 £601 to £2,612, a £2,011 spread on the same certified stone. MOH London lists it at £2,612. 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

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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 30
Current: £2,612 GBP|Low: £577 GBP|High: £2,647 GBP|Avg: £1,225 GBP
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£601 GBP
Retailer 9£654 GBP
Retailer 2£687 GBP
Retailer 6£697 GBP
Retailer 3£828 GBP
Retailer 10£1,084 GBP
Retailer 8£1,124 GBP
Retailer 4£1,658 GBP
Retailer 7£1,959 GBP
MOH London£2,612 GBP

24 data points across 10 retailers

10 retailers£601 GBP to £2,612 GBP

A
Cheapest Retailer
-
£601 GBP
$805 USD
B+
Retailer 2
-
£654 GBP
$876 USD
View
A
Retailer 3
-
£687 GBP
$920 USD
View
B+
Retailer 4
-
£697 GBP
$934 USD
View
Retailer 5
-
£697 GBP
$934 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
£828 GBP
$1,110 USD
View
B+
Retailer 7
-
£1,124 GBP
$1,506 USD
View
B+
Retailer 8
-
£1,658 GBP
$2,221 USD
View
B+
Retailer 9
-
£1,959 GBP
$2,625 USD
View
Most Expensive
B+
MOH London
LG506195332 · Nov 1
£2,612 GBP
View
9 more retailers have this diamond
Prices start from £601 GBPSave up to £2,011 GBP

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
£601 GBP