CaratHunter
Plans
Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6562552701

Certificate GIA 6562552701

Diamond specifications and retailer prices

From £6,257 GBP
As of November 4, 2026
Save £5,517 GBP (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £11,774 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562552701. Listed at 15 retailers as of November 4, 2026, with prices from £6,257 to £11,774, a £5,517 spread on the same certified stone. NZ Jewellers lists it at £11,774. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6562552701
Dimensions8.69 × 8.73 × 5.36 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cloud, Needle, Indented Natural
Top View
8.69 mm8.73 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562552701
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.5%

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: £11,774 GBP|Low: £6,257 GBP|High: £11,774 GBP|Avg: £8,474 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 7£6,257 GBP
Retailer 9£6,368 GBP
Retailer 4£7,203 GBP
Retailer 3£7,222 GBP
Retailer 8£7,603 GBP
Retailer 5£7,653 GBP
Retailer 6£7,798 GBP
Retailer 13£8,448 GBP
Retailer 14£8,578 GBP
Retailer 15£8,645 GBP
Retailer 10£8,842 GBP
Retailer 12£9,747 GBP
Retailer 2£10,035 GBP
Retailer 11£11,003 GBP
NZ Jewellers£11,774 GBP

15 data points across 15 retailers

15 retailers£6,257 GBP to £11,774 GBP

A
Cheapest Retailer
-
£6,257 GBP
A
Retailer 2
-
£6,368 GBP
View
A
Retailer 3
-
£7,203 GBP
View
A
Retailer 4
-
£7,222 GBP
View
A
Retailer 5
-
£7,603 GBP
View
A
Retailer 6
-
£7,653 GBP
View
Retailer 7
-
£7,798 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£8,448 GBP
View
B+
Retailer 9
-
£8,578 GBP
View
B+
Retailer 10
-
£8,645 GBP
View
A
Retailer 11
-
£8,842 GBP
View
B+
Retailer 12
-
£9,747 GBP
View
B+
Retailer 13
-
£10,035 GBP
View
B+
Retailer 14
-
£11,003 GBP
View
Most Expensive
B
NZ Jewellers
7bf2947c-06a8-49ce-8a7e-b27de7ac2231 · Nov 5
£11,774 GBP
$15,847 USD
View
14 more retailers have this diamond
Prices start from £6,257 GBPSave up to £5,517 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
£6,257 GBP