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Radiant|Natural|HRD

1.20ct I SI2 Radiant Natural Diamond

I/SI2 • HRD 170003131812

Certificate HRD 170003131812

Diamond specifications and retailer prices

From $4,632 NZD
As of November 5, 2026
Save $5,053 NZD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $9,685 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included) and certified by HRD 170003131812. Listed at 6 retailers as of November 5, 2026, with prices from $4,632 to $9,685, a $5,053 spread on the same certified stone. NZ Jewellers lists it at $9,685. 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

1.20
Carat
I
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 170003131812
Dimensions5.89 × 5.76 × 3.96 mm
L/W Ratio1.02
Top View
5.89 mm5.76 mm1.20 ctI / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 170003131812
Side View
Table 66.0%CrownGirdle: MediumPavilionCulet: NoneDepth 68.8%

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 5
Current: $9,685 NZD|Low: $3,076 NZD|High: $9,685 NZD|Avg: $5,671 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$3,076 NZD
Retailer 5$4,632 NZD
Retailer 6$4,632 NZD
Retailer 8$4,786 NZD
Retailer 4$4,845 NZD
Retailer 7$5,345 NZD
Retailer 2$5,751 NZD
Retailer 3$8,159 NZD
NZ Jewellers$9,685 NZD

20 data points across 9 retailers

6 retailers$4,632 NZD to $9,685 NZD

B+
Cheapest Retailer
-
$4,632 NZD
B+
Retailer 2
-
$4,845 NZD
View
B
Retailer 3
-
$5,345 NZD
View
B
Retailer 4
-
$5,751 NZD
View
Retailer 5
-
$8,159 NZD
View
Price last confirmed 9 days ago
Most Expensive
C
NZ Jewellers
0f63cc0d-fb3d-4149-b984-9ad3ca416c11 · Nov 5
$9,685 NZD
$5,369 USD
View
5 more retailers have this diamond
Prices start from $4,632 NZDSave up to $5,053 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+
1.20ct Radiant
$4,632 NZD