CaratHunter
Plans
Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6502421991

Certificate GIA 6502421991

Diamond specifications and retailer prices

From £11,057 GBP
As of November 6, 2026
Save £7,710 GBP (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £18,767 GBP at MOH London · As of November 4, 2026
View at MOH London

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 6502421991. Listed at 7 retailers as of November 4, 2026, with prices from £11,057 to £18,767, a £7,710 spread on the same certified stone. MOH London lists it at £18,767. 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 angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6502421991
Dimensions8.64 × 8.69 × 5.41 mm
L/W Ratio1.01
Top View
8.64 mm8.69 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6502421991
Side View
Table 58.0%Crown 35°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.4%

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 6
Current: £18,767 GBP|Low: £11,057 GBP|High: £19,045 GBP|Avg: £14,443 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6£11,057 GBP
Retailer 3£12,315 GBP
Retailer 5£12,558 GBP
Retailer 4£14,570 GBP
Retailer 2£16,546 GBP
MOH London£18,767 GBP

42 data points across 6 retailers

7 retailers£11,057 GBP to £18,767 GBP

A
Cheapest Retailer
-
£11,057 GBP
A
Retailer 2
-
£12,315 GBP
View
B+
Retailer 3
-
£12,558 GBP
View
B+
Retailer 4
-
£14,570 GBP
View
B
Retailer 5
-
£16,546 GBP
View
B
Retailer 6
-
£17,069 GBP
View
Most Expensive
B
MOH London
13F37865C · Nov 4
£18,767 GBP
View
6 more retailers have this diamond
Prices start from £11,057 GBPSave up to £7,710 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
£11,057 GBP