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Radiant|Natural|GIA

0.50ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 5172509062

Certificate GIA 5172509062

Diamond specifications and retailer prices

From $1,588 NZD
$895 USD
As of November 1, 2026
Save $1,688 NZD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,610 NZD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.5ct natural radiant diamond

This 0.5ct natural radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5172509062. Listed at 10 retailers as of November 1, 2026, with a 106% 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5172509062
Dimensions4.71 × 4.35 × 2.73 mm
L/W Ratio1.08
Top View
4.71 mm4.35 mm0.50 ctD / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 5172509062
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,276 NZD|Low: $1,588 NZD|High: $3,317 NZD|Avg: $2,103 NZD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$1,588 NZD
Retailer 3$1,639 NZD
Retailer 6$1,769 NZD
Retailer 9$1,826 NZD
Retailer 10$1,969 NZD
Retailer 11$1,969 NZD
Retailer 2$2,040 NZD
Retailer 4$2,097 NZD
Retailer 5$2,242 NZD
Retailer 8$2,692 NZD
Retailer 1$3,276 NZD

37 data points across 11 retailers

10 retailers$1,588 NZD to $3,276 NZD

B+
Cheapest Retailer
-
$1,588 NZD
$895 USD
B
Retailer 2
-
$1,769 NZD
$997 USD
View
B
Retailer 3
-
$1,826 NZD
$1,029 USD
View
B
Retailer 4
-
$1,969 NZD
$1,110 USD
View
B
Retailer 5
-
$1,969 NZD
$1,110 USD
View
B
Retailer 6
-
$2,040 NZD
$1,150 USD
View
B
Retailer 7
-
$2,097 NZD
£931 GBP
View
B
Retailer 8
-
$2,242 NZD
£995 GBP
View
B
Retailer 9
-
$3,276 NZD
£1,454 GBP
View
Most Expensive
NZ Jewellers
8aaeb7c7-f836-4c1e-9847-0b0124a12db4 · Oct 17
$5,610 NZD
$3,162 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,588 NZDSave up to $1,688 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.

B+
0.50ct Radiant
$1,588 NZD