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Radiant|Lab Grown|IGI

0.90ct K SI1 Radiant Lab Grown Diamond

EX • K/SI1 • IGI LG539219008

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

Certificate IGI LG539219008

Diamond specifications and retailer prices

From $1,274 AUD
£689 GBP
As of November 2, 2026
4 retailers carry this diamond
Most expensive: $1,274 AUD at MOH London
View at MOH London

About this 0.9ct lab-grown radiant diamond

This 0.9ct lab-grown radiant sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG539219008 or 539219008. Listed at 4 retailers as of November 2, 2026. 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

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539219008
Dimensions6.86 × 4.90 × 3.30 mm
L/W Ratio1.40
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
6.86 mm4.90 mm0.90 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539219008
Side View
Table 66.0%Crown 41.1°Girdle: Slightly ThickPavilion 36.1°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $1,274 AUD|Low: $322 AUD|High: $1,288 AUD|Avg: $659 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 25, 2026
Retailer 2$358 AUD
Retailer 3$533 AUD
Retailer 6$556 AUD
Retailer 4$604 AUD
Retailer 5$626 AUD
MOH London$1,274 AUD

9 data points across 6 retailers

4 retailers

Retailer 1
-
$358 AUD
Price under review
Retailer 2
-
$533 AUD
View
Price under review
Retailer 3
-
$556 AUD
View
Price under review
Most Expensive
A
MOH London
LG539219008 · Nov 2
$1,274 AUD
£689 GBP
View
3 more retailers have this diamond

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
0.90ct Radiant
$1,274 AUD