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Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6551658112

Certificate GIA 6551658112

Diamond specifications and retailer prices

From £8,557 GBP
As of November 3, 2026
Save £6,783 GBP (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £15,340 GBP at With Clarity · As of November 5, 2026
View at With Clarity

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 6551658112. Listed at 11 retailers as of November 3, 2026, with prices from £8,557 to £15,340, a £6,783 spread on the same certified stone. With Clarity lists it at £15,340. 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
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551658112
Dimensions8.60 × 5.41 × 5.41 mm
L/W Ratio1.59
Culet sizeNone
Top View
8.60 mm5.41 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551658112
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 3
Current: £9,316 GBP|Low: £8,557 GBP|High: £16,134 GBP|Avg: £10,669 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 5, 2026
Retailer 6£8,557 GBP
Retailer 8£8,836 GBP
Retailer 2£9,102 GBP
Retailer 1£9,316 GBP
Retailer 7£9,462 GBP
Retailer 5£10,238 GBP
Retailer 9£10,605 GBP
Retailer 4£10,899 GBP
Retailer 3£11,116 GBP
With Clarity£15,340 GBP

43 data points across 10 retailers

11 retailers£8,557 GBP to £15,340 GBP

A
Cheapest Retailer
-
£8,557 GBP
A
Retailer 2
-
£8,836 GBP
View
A
Retailer 3
-
£9,102 GBP
View
A
Retailer 4
-
£9,316 GBP
View
A
Retailer 5
-
£9,462 GBP
View
Retailer 6
-
£10,238 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£10,605 GBP
View
A
Retailer 8
-
£10,899 GBP
View
A
Retailer 9
-
£11,116 GBP
View
B+
Retailer 10
-
£12,171 GBP
View
Most Expensive
B
With Clarity
6551658112 · Nov 5
£15,340 GBP
$20,646 USD
View
10 more retailers have this diamond
Prices start from £8,557 GBPSave up to £6,783 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
£8,557 GBP