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 $219 NZD
$123 USD
As of November 2, 2026
Save $754 NZD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,266 NZD 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 November 2, 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: $2,266 NZD|Low: $210 NZD|High: $2,293 NZD|Avg: $684 NZD|-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$219 NZD
Retailer 10$254 NZD
Retailer 6$290 NZD
Retailer 9$290 NZD
Retailer 11$364 NZD
Retailer 3$524 NZD
Retailer 5$563 NZD
Retailer 8$655 NZD
Retailer 4$809 NZD
Retailer 7$873 NZD
Retailer 12$972 NZD
MOH London$2,266 NZD

29 data points across 12 retailers

12 retailers$219 NZD to $972 NZD

A
Cheapest Retailer
-
$219 NZD
$123 USD
A
Retailer 2
-
$254 NZD
$143 USD
View
Retailer 3
-
$290 NZD
$163 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$290 NZD
$163 USD
View
B+
Retailer 5
-
$364 NZD
$205 USD
View
B+
Retailer 6
-
$524 NZD
$295 USD
View
B
Retailer 7
-
$563 NZD
£249 GBP
View
B
Retailer 8
-
$655 NZD
£290 GBP
View
B
Retailer 9
-
$809 NZD
$455 USD
View
B
Retailer 10
-
$873 NZD
$491 USD
View
B
Retailer 11
-
$972 NZD
$547 USD
View
Most Expensive
MOH London
LG559281534 · Nov 1
$2,266 NZD
£1,004 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $219 NZDSave up to $754 NZD

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
$219 NZD