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Oval|Natural|HRD

2.51ct K SI2 Oval Natural Diamond

K/SI2 • HRD 210000102821

Shape and cutting style on the report: Oval (variation)

Certificate HRD 210000102821

Diamond specifications and retailer prices

From $12,348 AUD
As of November 6, 2026
Save $11,313 AUD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $23,660 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included) and certified by HRD 210000102821. Listed at 10 retailers as of November 5, 2026, with prices from $12,348 to $23,660, a $11,313 spread on the same certified stone. NZ Jewellers lists it at $23,660. 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

2.51
Carat
K
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 210000102821
Dimensions10.72 × 7.03 × 4.91 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizeNone
Top View
10.72 mm7.03 mm2.51 ctK / SI2
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 210000102821
Side View
Table 56.0%CrownGirdle: Extremely ThickPavilionCulet: 0.0Depth 70.0%

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 6
Current: $23,660 AUD|Low: $12,041 AUD|High: $23,660 AUD|Avg: $16,478 AUD|+1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 8$12,348 AUD
Retailer 10$12,991 AUD
Retailer 9$13,173 AUD
Retailer 4$14,196 AUD
Retailer 6$15,379 AUD
Retailer 7$15,616 AUD
Retailer 5$17,746 AUD
Retailer 3$17,882 AUD
Retailer 2$22,112 AUD
NZ Jewellers$23,660 AUD

30 data points across 10 retailers

10 retailers$12,348 AUD to $23,660 AUD

B+
Cheapest Retailer
-
$12,348 AUD
B+
Retailer 2
-
$12,991 AUD
View
B+
Retailer 3
-
$13,173 AUD
View
Retailer 4
-
$14,196 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$15,379 AUD
View
B+
Retailer 6
-
$15,616 AUD
View
B+
Retailer 7
-
$17,746 AUD
View
B+
Retailer 8
-
$17,882 AUD
View
B
Retailer 9
-
$22,112 AUD
View
Most Expensive
C
NZ Jewellers
9bfdd30c-86d4-4b4b-8bd5-c94418910662 · Nov 5
$23,660 AUD
$16,257 USD
View
9 more retailers have this diamond
Prices start from $12,348 AUDSave up to $11,313 AUD

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+
2.51ct Oval
$12,348 AUD