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Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1

Diamond specifications and retailer prices

From £10,311 GBP
As of November 4, 2026
Save £5,960 GBP (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £16,271 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 9 retailers as of November 4, 2026, with prices from £10,311 to £16,271, a £5,960 spread on the same certified stone. NZ Jewellers lists it at £16,271. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions8.60 × 8.63 × 5.45 mm
L/W Ratio1.00
Top View
8.60 mm8.63 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 56.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.2%

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 4
Current: £16,271 GBP|Low: £10,311 GBP|High: £16,613 GBP|Avg: £12,945 GBP|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8£10,311 GBP
Retailer 9£11,646 GBP
Retailer 7£12,337 GBP
Retailer 6£12,443 GBP
Retailer 4£12,467 GBP
Retailer 3£12,774 GBP
Retailer 2£12,921 GBP
Retailer 5£13,721 GBP
NZ Jewellers£16,271 GBP

14 data points across 9 retailers

9 retailers£10,311 GBP to £16,271 GBP

A
Cheapest Retailer
-
£10,311 GBP
Retailer 2
-
£11,646 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£12,337 GBP
View
B+
Retailer 4
-
£12,443 GBP
View
B+
Retailer 5
-
£12,467 GBP
View
B+
Retailer 6
-
£12,774 GBP
View
B+
Retailer 7
-
£12,921 GBP
View
B+
Retailer 8
-
£13,721 GBP
View
Most Expensive
B
NZ Jewellers
af394ada-1d6f-442d-99f6-ff6a02cdd7de · Nov 5
£16,271 GBP
$21,900 USD
View
8 more retailers have this diamond
Prices start from £10,311 GBPSave up to £5,960 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.

A
2.51ct Round
£10,311 GBP