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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 $8,484 USD
As of November 6, 2026
Save $7,773 USD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,257 USD 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 $8,484 to $16,257, a $7,773 spread on the same certified stone. NZ Jewellers lists it at $16,257. 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
Color
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: $16,257 USD|Low: $8,273 USD|High: $16,257 USD|Avg: $11,322 USD|+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$8,484 USD
Retailer 10$8,926 USD
Retailer 9$9,051 USD
Retailer 4$9,754 USD
Retailer 6$10,567 USD
Retailer 7$10,730 USD
Retailer 5$12,193 USD
Retailer 3$12,287 USD
Retailer 2$15,193 USD
NZ Jewellers$16,257 USD

30 data points across 10 retailers

10 retailers$8,484 USD to $16,257 USD

B+
Cheapest Retailer
-
$8,484 USD
B+
Retailer 2
-
$8,926 USD
View
B+
Retailer 3
-
$9,051 USD
View
Retailer 4
-
$9,754 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$10,567 USD
View
B+
Retailer 6
-
$10,730 USD
View
B+
Retailer 7
-
$12,193 USD
View
B+
Retailer 8
-
$12,287 USD
View
B
Retailer 9
-
$15,193 USD
View
Most Expensive
C
NZ Jewellers
9bfdd30c-86d4-4b4b-8bd5-c94418910662 · Nov 5
$16,257 USD
View
9 more retailers have this diamond
Prices start from $8,484 USDSave up to $7,773 USD

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
$8,484 USD