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Radiant|Natural|HRD

1.73ct D SI2 Radiant Natural Diamond

ID • D/SI2 • HRD 250000280591

Certificate HRD 250000280591

Diamond specifications and retailer prices

From $11,493 NZD
$6,477 USD
As of November 1, 2026
Save $7,931 NZD (41%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $23,187 NZD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.73ct natural radiant diamond

This 1.73ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000280591. Listed at 9 retailers as of October 29, 2026, with a 69% 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

1.73
Carat
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle33°
OriginNatural
Grading LabHRD
CertificateHRD 250000280591
Dimensions7.99 × 5.88 × 3.96 mm
L/W Ratio1.36
Girdle conditionPolished
Top View
7.99 mm5.88 mm1.73 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000280591
Side View
Table 67.0%CrownGirdle: MediumPavilion 33°Culet: NoneDepth 67.3%

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 1
Current: $23,187 NZD|Low: $10,242 NZD|High: $23,187 NZD|Avg: $14,327 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
November 1, 2026
Retailer 4$10,242 NZD
Retailer 2$11,493 NZD
Retailer 12$11,682 NZD
Retailer 7$12,229 NZD
Retailer 11$12,476 NZD
Retailer 10$12,739 NZD
Retailer 8$12,796 NZD
Retailer 9$14,150 NZD
Retailer 5$14,446 NZD
Retailer 3$16,959 NZD
Retailer 6$19,424 NZD
NZ Jewellers$23,187 NZD

23 data points across 12 retailers

9 retailers$11,493 NZD to $19,424 NZD

A
Cheapest Retailer
-
$11,493 NZD
$6,477 USD
A
Retailer 2
-
$12,229 NZD
SGD 9,314 SGD
View
A
Retailer 3
-
$12,476 NZD
A$10,818 AUD
View
A
Retailer 4
-
$12,739 NZD
$7,180 USD
View
A
Retailer 5
-
$12,796 NZD
$7,212 USD
View
Final sale: no returns
Retailer 6
-
$14,150 NZD
$7,975 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$14,446 NZD
€7,754 EUR
View
B+
Retailer 8
-
$19,424 NZD
£8,620 GBP
View
Most Expensive
NZ Jewellers
63b80af5-784a-4001-a814-d39994758036 · Oct 24
$23,187 NZD
$13,068 USD
View
Price last confirmed 8 days ago
8 more retailers have this diamond
Prices start from $11,493 NZDSave up to $7,931 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
1.73ct Radiant
$11,493 NZD