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Radiant|Lab Grown|IGI

1.51ct F SI2 Radiant Lab Grown Diamond

ID • F/SI2 • IGI LG528240744

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

Certificate IGI LG528240744

Diamond specifications and retailer prices

From $445 AUD
$312 USD
As of November 1, 2026
Save $1,258 AUD (74%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,703 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG528240744 or 528240744. Listed at 4 retailers as of November 1, 2026, with prices from $445 to $1,703, a $1,258 spread on the same certified stone. MOH London lists it at $1,703. 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

1.51
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528240744
Dimensions7.99 × 5.76 × 3.95 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.99 mm5.76 mm1.51 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528240744
Side View
Table 64.5%Crown 39.9°Girdle: MED-STKPavilion 36.2°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,703 AUD|Low: $445 AUD|High: $1,723 AUD|Avg: $774 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$445 AUD
Retailer 3$468 AUD
Retailer 2$671 AUD
Retailer 5$682 AUD
MOH London$1,703 AUD

36 data points across 5 retailers

4 retailers$445 AUD to $1,703 AUD

B+
Cheapest Retailer
-
$445 AUD
$312 USD
A
Retailer 2
-
$468 AUD
$328 USD
View
A
Retailer 3
-
$671 AUD
£370 GBP
View
Most Expensive
B
MOH London
LG528240744 · Nov 1
$1,703 AUD
£940 GBP
View
3 more retailers have this diamond
Prices start from $445 AUDSave up to $1,258 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
1.51ct Radiant
$445 AUD