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Radiant|Natural|GIA

0.50ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1438055204

Certificate GIA 1438055204

Diamond specifications and retailer prices

From $1,073 NZD
$605 USD
As of November 2, 2026
Save $1,279 NZD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,026 NZD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1438055204. Listed at 11 retailers as of November 1, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1438055204
Dimensions4.88 × 4.00 × 2.71 mm
L/W Ratio1.22
Culet sizeNone
Top View
4.88 mm4.00 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1438055204
Side View
Table 62.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 67.7%

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 2
Current: $1,680 NZD|Low: $823 NZD|High: $2,380 NZD|Avg: $1,432 NZD|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$1,073 NZD
Retailer 4$1,100 NZD
Retailer 6$1,164 NZD
Retailer 7$1,341 NZD
Retailer 2$1,555 NZD
Retailer 1$1,680 NZD
Retailer 3$2,353 NZD

44 data points across 7 retailers

11 retailers$1,073 NZD to $2,353 NZD

A
Cheapest Retailer
-
$1,073 NZD
$605 USD
Final sale: no returns
B+
Retailer 2
-
$1,164 NZD
$656 USD
View
B+
Retailer 3
-
$1,208 NZD
$681 USD
View
B+
Retailer 4
-
$1,341 NZD
$756 USD
View
B
Retailer 5
-
$1,490 NZD
$840 USD
View
B
Retailer 6
-
$1,490 NZD
$840 USD
View
B
Retailer 7
-
$1,526 NZD
$860 USD
View
B
Retailer 8
-
$1,555 NZD
£690 GBP
View
B+
Retailer 9
-
$1,680 NZD
€902 EUR
View
B
Retailer 10
-
$2,353 NZD
£1,044 GBP
View
Most Expensive
NZ Jewellers
f4e5554e-bcd5-42c3-9487-48149f22e6e9 · Oct 30
$4,026 NZD
$2,269 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,073 NZDSave up to $1,279 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
$1,073 NZD