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1.25ct F SI2 Round Natural Diamond

GD • F/SI2 • HRD 240000026045

Certificate HRD 240000026045

Diamond specifications and retailer prices

From £1,880 GBP
As of November 4, 2026
Save £2,509 GBP (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,389 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by HRD 240000026045. Listed at 10 retailers as of November 4, 2026, with prices from £1,880 to £4,389, a £2,509 spread on the same certified stone. NZ Jewellers lists it at £4,389. 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

1.25
Carat
F
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle41.6°
OriginNatural
Grading LabHRD
CertificateHRD 240000026045
Dimensions6.71 × 6.66 × 4.35 mm
L/W Ratio1.01
Cert comments
NO BGM EYE CLEAN
Top View
6.71 mm6.66 mm1.25 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 240000026045
Side View
Table 60.0%Crown 37.2°GirdlePavilion 41.6°Culet: NoneDepth 65.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,389 GBP|Low: £1,629 GBP|High: £4,389 GBP|Avg: £2,454 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3£1,629 GBP
Retailer 11£1,880 GBP
Retailer 9£1,937 GBP
Retailer 6£2,099 GBP
Retailer 7£2,099 GBP
Retailer 8£2,180 GBP
Retailer 10£2,205 GBP
Retailer 5£2,422 GBP
Retailer 2£2,451 GBP
Retailer 4£3,677 GBP
NZ Jewellers£4,389 GBP

25 data points across 11 retailers

10 retailers£1,880 GBP to £4,389 GBP

B+
Cheapest Retailer
-
£1,880 GBP
B+
Retailer 2
-
£1,937 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,099 GBP
View
Retailer 4
-
£2,099 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£2,180 GBP
View
B+
Retailer 6
-
£2,205 GBP
View
B+
Retailer 7
-
£2,422 GBP
View
B+
Retailer 8
-
£2,451 GBP
View
B
Retailer 9
-
£3,677 GBP
View
Most Expensive
B
NZ Jewellers
f53a123e-3415-4723-9673-56f1453bb5cd · Nov 5
£4,389 GBP
$5,874 USD
View
9 more retailers have this diamond
Prices start from £1,880 GBPSave up to £2,509 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
£1,880 GBP