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1.25ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2225951226

Certificate GIA 2225951226

Diamond specifications and retailer prices

From £2,751 GBP
As of November 2, 2026
Save £1,678 GBP (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,429 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2225951226. Listed at 3 retailers as of November 1, 2026, with prices from £2,751 to £4,429, a £1,678 spread on the same certified stone. MOH London lists it at £4,429. 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

1.25
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2225951226
Dimensions6.87 × 6.84 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Crystal
Top View
6.87 mm6.84 mm1.25 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2225951226
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £4,429 GBP|Low: £2,037 GBP|High: £4,429 GBP|Avg: £2,850 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4£2,037 GBP
Retailer 6£2,351 GBP
Retailer 7£2,488 GBP
Retailer 8£2,630 GBP
Retailer 2£2,751 GBP
Retailer 3£2,907 GBP
Retailer 5£3,212 GBP
MOH London£4,429 GBP

2 data points across 8 retailers

3 retailers£2,751 GBP to £4,429 GBP

B
Cheapest Retailer
-
£2,751 GBP
B
Retailer 2
-
£2,907 GBP
€3,709 EUR
View
Most Expensive
C
MOH London
3400675A7 · Nov 1
£4,429 GBP
View
2 more retailers have this diamond
Prices start from £2,751 GBPSave up to £1,678 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.

B
1.25ct Round
£2,751 GBP