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Radiant|Natural|HRD

2.51ct J SI2 Radiant Natural Diamond

ID • J/SI2 • HRD 250000292671

Certificate HRD 250000292671

Diamond specifications and retailer prices

From $8,697 NZD
₹466,830 INR
As of November 1, 2026
Save $7,739 NZD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $18,659 NZD at NZ Jewellers · As of September 29, 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 J 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 250000292671. Listed at 13 retailers as of November 1, 2026, with a 89% 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

2.51
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 250000292671
Dimensions9.35 × 6.64 × 4.63 mm
L/W Ratio1.41
Girdle conditionPolished
Culet sizeNone
Top View
9.35 mm6.64 mm2.51 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000292671
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: NoneDepth 69.7%

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 1
Current: $8,697 NZD|Low: $8,611 NZD|High: $16,634 NZD|Avg: $11,077 NZD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 1$8,697 NZD
Retailer 5$9,792 NZD
Retailer 7$9,840 NZD
Retailer 8$10,181 NZD
Retailer 6$10,296 NZD
Retailer 2$10,447 NZD
Retailer 10$11,157 NZD
Retailer 9$11,436 NZD
Retailer 4$12,190 NZD
Retailer 3$16,436 NZD

44 data points across 10 retailers

13 retailers$8,697 NZD to $16,436 NZD

A
Cheapest Retailer
-
$8,697 NZD
₹466,830 INR
A
Retailer 2
-
$9,792 NZD
SGD 7,458 SGD
View
A
Retailer 3
-
$9,840 NZD
$5,546 USD
View
A
Retailer 4
-
$10,181 NZD
$5,738 USD
View
A
Retailer 5
-
$10,296 NZD
$5,803 USD
View
Final sale: no returns
A
Retailer 6
-
$10,447 NZD
A$9,058 AUD
View
Retailer 7
-
$10,949 NZD
$6,171 USD
View
Price last confirmed 34 days ago
Retailer 8
-
$11,157 NZD
$6,288 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$11,436 NZD
$6,445 USD
View
A
Retailer 10
-
$12,190 NZD
€6,543 EUR
View
Retailer 11
-
$12,873 NZD
$7,255 USD
View
Price last confirmed 33 days ago
A
Retailer 12
-
$16,436 NZD
£7,294 GBP
View
Most Expensive
NZ Jewellers
20b7921d-e01f-45a1-889b-cd628d88f433 · Sep 29
$18,659 NZD
$10,516 USD
View
Price last confirmed 33 days ago
12 more retailers have this diamond
Prices start from $8,697 NZDSave up to $7,739 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
$8,697 NZD