CaratHunter
Plans
Radiant|Natural|GIA

2.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2566503696

Certificate GIA 2566503696

Diamond specifications and retailer prices

From £13,570 GBP
CA$25,292 CAD
As of November 2, 2026
Save £8,775 GBP (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £22,345 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566503696. Listed at 9 retailers as of November 1, 2026, with prices from £13,570 to £22,345, a £8,775 spread on the same certified stone. MOH London lists it at £22,345. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566503696
Dimensions8.59 × 6.77 × 4.73 mm
L/W Ratio1.27
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
8.59 mm6.77 mm2.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566503696
Side View
Table 73.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

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 2
Current: £22,345 GBP|Low: £13,570 GBP|High: £22,464 GBP|Avg: £16,937 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£13,570 GBP
Retailer 9£13,655 GBP
Retailer 4£14,882 GBP
Retailer 6£15,668 GBP
Retailer 5£16,829 GBP
Retailer 3£16,877 GBP
Retailer 8£17,363 GBP
Retailer 7£20,269 GBP
MOH London£22,345 GBP

9 data points across 9 retailers

9 retailers£13,570 GBP to £22,345 GBP

Cheapest Retailer
-
£13,570 GBP
CA$25,292 CAD
A
Retailer 2
-
£13,655 GBP
$18,325 USD
View
B+
Retailer 3
-
£14,882 GBP
View
B+
Retailer 4
-
£15,668 GBP
$21,026 USD
View
B+
Retailer 5
-
£16,829 GBP
$22,583 USD
View
B+
Retailer 6
-
£16,877 GBP
€21,569 EUR
View
Retailer 7
-
£17,363 GBP
$23,300 USD
View
Price last confirmed 9 days ago
Retailer 8
-
£20,269 GBP
$27,200 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
4C62C121B · Nov 1
£22,345 GBP
View
8 more retailers have this diamond
Prices start from £13,570 GBPSave up to £8,775 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 Radiant
£13,570 GBP