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Radiant|Natural|GIA

0.50ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 1428519795

Certificate GIA 1428519795

Diamond specifications and retailer prices

From $1,108 NZD
As of November 4, 2026
Save $3,058 NZD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,165 NZD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1428519795. Listed at 18 retailers as of November 3, 2026, with prices from $1,108 to $4,165, a $3,058 spread on the same certified stone. NZ Jewellers lists it at $4,165. 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

0.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1428519795
Dimensions5.01 × 3.92 × 2.73 mm
L/W Ratio1.28
Key to symbols
Indented Natural, Cloud
Top View
5.01 mm3.92 mm0.50 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1428519795
Side View
Table 67.0%CrownGirdlePavilionCulet: NoneDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,165 NZD|Low: $761 NZD|High: $4,165 NZD|Avg: $1,685 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 3, 2026
Retailer 8$1,108 NZD
Retailer 9$1,183 NZD
Retailer 7$1,191 NZD
Retailer 4$1,225 NZD
Retailer 17$1,328 NZD
Retailer 18$1,328 NZD
Retailer 16$1,380 NZD
Retailer 5$1,528 NZD
Retailer 3$1,533 NZD
Retailer 10$1,566 NZD
Retailer 12$1,593 NZD
Retailer 2$1,627 NZD
Retailer 6$1,642 NZD
Retailer 15$1,663 NZD
Retailer 11$1,876 NZD
Retailer 14$2,049 NZD
Retailer 13$2,432 NZD
NZ Jewellers$4,165 NZD

27 data points across 18 retailers

18 retailers$1,108 NZD to $4,165 NZD

A
Cheapest Retailer
-
$1,108 NZD
A
Retailer 2
-
$1,191 NZD
View
Retailer 3
-
$1,328 NZD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$1,328 NZD
View
Retailer 5
-
$1,378 NZD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$1,380 NZD
View
B+
Retailer 7
-
$1,528 NZD
View
B+
Retailer 8
-
$1,533 NZD
View
B+
Retailer 9
-
$1,566 NZD
View
B+
Retailer 10
-
$1,593 NZD
View
B+
Retailer 11
-
$1,627 NZD
View
B
Retailer 12
-
$1,642 NZD
View
B+
Retailer 13
-
$1,663 NZD
View
B
Retailer 14
-
$1,817 NZD
View
B+
Retailer 15
-
$1,876 NZD
View
Retailer 16
-
$2,049 NZD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$2,432 NZD
View
Most Expensive
B
NZ Jewellers
31cb2d8d-b0a1-4357-8128-729f54310a37 · Nov 3
$4,165 NZD
$2,309 USD
View
17 more retailers have this diamond
Prices start from $1,108 NZDSave up to $3,058 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
$1,108 NZD