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5.26ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6512842881

Certificate GIA 6512842881

Diamond specifications and retailer prices

From £72,918 GBP
$97,852 USD
As of November 2, 2026
Save £46,140 GBP (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £119,058 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 5.26ct natural round diamond

This 5.26ct natural round sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512842881. Listed at 8 retailers as of November 2, 2026, with prices from £72,918 to £119,058, a £46,140 spread on the same certified stone. MOH London lists it at £119,058. 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

5.26
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6512842881
Dimensions11.08 × 11.00 × 6.94 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
11.08 mm11.00 mm5.26 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512842881
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.9%

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 2
Current: £119,058 GBP|Low: £72,918 GBP|High: £120,493 GBP|Avg: £87,032 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 4£72,918 GBP
Retailer 6£73,329 GBP
Retailer 3£76,592 GBP
Retailer 5£85,694 GBP
Retailer 2£90,457 GBP
MOH London£119,058 GBP

38 data points across 6 retailers

8 retailers£72,918 GBP to £119,058 GBP

B+
Cheapest Retailer
-
£72,918 GBP
$97,852 USD
B+
Retailer 2
-
£73,329 GBP
$98,403 USD
View
B+
Retailer 3
-
£76,592 GBP
View
Retailer 4
-
£79,410 GBP
$106,563 USD
View
Price last confirmed 36 days ago
B+
Retailer 5
-
£79,410 GBP
$106,563 USD
View
Retailer 6
-
£85,694 GBP
$114,997 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
£90,457 GBP
€115,608 EUR
View
Most Expensive
B
MOH London
201DB1B9B · Nov 2
£119,058 GBP
View
7 more retailers have this diamond
Prices start from £72,918 GBPSave up to £46,140 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+
5.26ct Round
£72,918 GBP