Radiant|Lab Grown|IGI

0.50ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG559281534

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

Certificate IGI LG559281534

Diamond specifications and retailer prices

From $175 AUD
$123 USD
As of November 2, 2026
Save $604 AUD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,815 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown radiant diamond

This 0.5ct lab-grown radiant sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG559281534 or 559281534. Listed at 12 retailers as of October 31, 2026, with a 345% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281534
Dimensions5.62 × 4.06 × 2.47 mm
L/W Ratio1.38
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
5.62 mm4.06 mm0.50 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281534
Side View
Table 59.0%Crown 39.1°Girdle: MED-STKPavilion 31.5°Culet: NoneDepth 60.8%

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: Nov 2
Current: $1,815 AUD|Low: $168 AUD|High: $1,837 AUD|Avg: $548 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$175 AUD
Retailer 10$204 AUD
Retailer 6$232 AUD
Retailer 9$232 AUD
Retailer 11$292 AUD
Retailer 3$420 AUD
Retailer 5$451 AUD
Retailer 8$525 AUD
Retailer 4$648 AUD
Retailer 7$699 AUD
Retailer 12$779 AUD
MOH London$1,815 AUD

29 data points across 12 retailers

12 retailers$175 AUD to $779 AUD

A
Cheapest Retailer
-
$175 AUD
$123 USD
A
Retailer 2
-
$204 AUD
$143 USD
View
Retailer 3
-
$232 AUD
$163 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$232 AUD
$163 USD
View
B+
Retailer 5
-
$292 AUD
$205 USD
View
B+
Retailer 6
-
$420 AUD
$295 USD
View
B
Retailer 7
-
$451 AUD
£249 GBP
View
B
Retailer 8
-
$525 AUD
£290 GBP
View
B
Retailer 9
-
$648 AUD
$455 USD
View
B
Retailer 10
-
$699 AUD
$491 USD
View
B
Retailer 11
-
$779 AUD
$547 USD
View
Most Expensive
MOH London
LG559281534 · Nov 1
$1,815 AUD
£1,004 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $175 AUDSave up to $604 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
0.50ct Radiant
$175 AUD