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Radiant|Natural|HRD

2.51ct H SI2 Radiant Natural Diamond

EX • H/SI2 • HRD 250000296370

Certificate HRD 250000296370

Diamond specifications and retailer prices

From $14,778 NZD
$8,329 USD
As of November 1, 2026
Save $9,938 NZD (40%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $24,716 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000296370. Listed at 4 retailers as of October 30, 2026, with prices from $14,778 to $24,716, a $9,938 spread on the same certified stone. NZ Jewellers lists it at $24,716. 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

2.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.05°
Pavilion angle30.89°
OriginNatural
Grading LabHRD
CertificateHRD 250000296370
Dimensions8.99 × 6.78 × 4.46 mm
L/W Ratio1.33
Girdle conditionMedium
Top View
8.99 mm6.78 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000296370
Side View
Table 70.0%Crown 44.05°GirdlePavilion 30.89°Culet: NoneDepth 65.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $24,716 NZD|Low: $14,558 NZD|High: $24,801 NZD|Avg: $17,779 NZD|-0.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5$14,558 NZD
Retailer 4$14,778 NZD
Retailer 3$15,005 NZD
Retailer 6$15,740 NZD
Retailer 2$20,596 NZD
NZ Jewellers$24,716 NZD

21 data points across 6 retailers

4 retailers$14,778 NZD to $24,716 NZD

A
Cheapest Retailer
-
$14,778 NZD
$8,329 USD
A
Retailer 2
-
$15,005 NZD
$8,457 USD
View
A
Retailer 3
-
$20,596 NZD
£9,140 GBP
View
Most Expensive
A
NZ Jewellers
08a9342f-3621-4946-8beb-74fc9ef5e466 · Oct 30
$24,716 NZD
$13,930 USD
View
3 more retailers have this diamond
Prices start from $14,778 NZDSave up to $9,938 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
2.51ct Radiant
$14,778 NZD