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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 £6,338 GBP
As of November 6, 2026
Save £5,807 GBP (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £12,146 GBP 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 £6,338 to £12,146, a £5,807 spread on the same certified stone. NZ Jewellers lists it at £12,146. 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: £12,146 GBP|Low: £6,181 GBP|High: £12,146 GBP|Avg: £8,459 GBP|+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£6,338 GBP
Retailer 10£6,669 GBP
Retailer 9£6,762 GBP
Retailer 4£7,287 GBP
Retailer 6£7,895 GBP
Retailer 7£8,016 GBP
Retailer 5£9,110 GBP
Retailer 3£9,180 GBP
Retailer 2£11,351 GBP
NZ Jewellers£12,146 GBP

30 data points across 10 retailers

10 retailers£6,338 GBP to £12,146 GBP

B+
Cheapest Retailer
-
£6,338 GBP
B+
Retailer 2
-
£6,669 GBP
View
B+
Retailer 3
-
£6,762 GBP
View
Retailer 4
-
£7,287 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£7,895 GBP
View
B+
Retailer 6
-
£8,016 GBP
View
B+
Retailer 7
-
£9,110 GBP
View
B+
Retailer 8
-
£9,180 GBP
View
B
Retailer 9
-
£11,351 GBP
View
Most Expensive
C
NZ Jewellers
9bfdd30c-86d4-4b4b-8bd5-c94418910662 · Nov 5
£12,146 GBP
$16,257 USD
View
9 more retailers have this diamond
Prices start from £6,338 GBPSave up to £5,807 GBP

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
£6,338 GBP