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1.26ct L SI1 Round Natural Diamond

EX • L/SI1 • HRD 250000235585

Certificate HRD 250000235585

Diamond specifications and retailer prices

From £640 GBP
As of November 5, 2026
Save £2,549 GBP (80%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,189 GBP at Aurelinne · As of November 2, 2026
View at Aurelinne

About this 1.26ct natural round diamond

This 1.26ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by HRD 250000235585. Listed at 5 retailers as of November 2, 2026, with prices from £640 to £3,189, a £2,549 spread on the same certified stone. Aurelinne lists it at £3,189. 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

1.26
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 250000235585
Dimensions6.78 × 6.82 × 4.32 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.78 mm6.82 mm1.26 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 250000235585
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 63.4%

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 5
Current: £3,189 GBP|Low: £640 GBP|High: £3,189 GBP|Avg: £1,134 GBP
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 2£640 GBP
Retailer 3£1,100 GBP
Retailer 5£2,763 GBP
Retailer 4£2,869 GBP
Aurelinne£3,189 GBP

38 data points across 5 retailers

5 retailers£640 GBP to £3,189 GBP

A
Cheapest Retailer
-
£640 GBP
A
Retailer 2
-
£1,100 GBP
View
C
Retailer 3
-
£2,763 GBP
View
C
Retailer 4
-
£2,869 GBP
View
Most Expensive
C
Aurelinne
521005c1-3aa1-44fb-bbf0-68f1f4d8ef88 · Nov 2
£3,189 GBP
$4,292 USD
View
4 more retailers have this diamond
Prices start from £640 GBPSave up to £2,549 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
1.26ct Round
£640 GBP