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Radiant|Natural|GIA

0.50ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 6542392066

Certificate GIA 6542392066

Diamond specifications and retailer prices

From $800 NZD
$451 USD
As of November 2, 2026
Save $2,777 NZD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,577 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 6542392066. Listed at 12 retailers as of October 30, 2026, with prices from $800 to $3,577, a $2,777 spread on the same certified stone. NZ Jewellers lists it at $3,577. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542392066
Dimensions5.40 × 3.98 × 2.74 mm
L/W Ratio1.36
Top View
5.40 mm3.98 mm0.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542392066
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

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: $3,577 NZD|Low: $727 NZD|High: $3,605 NZD|Avg: $1,647 NZD|-0.8%
NZ Jewellers
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 12$800 NZD
Retailer 2$852 NZD
Retailer 4$1,357 NZD
Retailer 11$1,375 NZD
Retailer 6$1,405 NZD
Retailer 8$1,473 NZD
Retailer 10$1,570 NZD
Retailer 5$1,677 NZD
Retailer 3$1,729 NZD
Retailer 9$1,760 NZD
Retailer 7$2,634 NZD
NZ Jewellers$3,577 NZD

34 data points across 12 retailers

12 retailers$800 NZD to $3,577 NZD

A
Cheapest Retailer
-
$800 NZD
$451 USD
Final sale: no returns
A
Retailer 2
-
$852 NZD
₹45,757 INR
View
B+
Retailer 3
-
$1,357 NZD
$765 USD
View
B+
Retailer 4
-
$1,375 NZD
$775 USD
View
B+
Retailer 5
-
$1,405 NZD
£623 GBP
View
B
Retailer 6
-
$1,473 NZD
$830 USD
View
B+
Retailer 7
-
$1,570 NZD
$885 USD
View
B+
Retailer 8
-
$1,677 NZD
€900 EUR
View
Retailer 9
-
$1,729 NZD
A$1,499 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$1,760 NZD
ZAR 16,027 ZAR
View
B
Retailer 11
-
$2,634 NZD
£1,169 GBP
View
Most Expensive
B
NZ Jewellers
574144f7-0a18-44c2-9d7e-8348b534807f · Oct 30
$3,577 NZD
$2,016 USD
View
11 more retailers have this diamond
Prices start from $800 NZDSave up to $2,777 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
$800 NZD