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Round|Natural|GIA

2.60ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6445645038

Certificate GIA 6445645038

Diamond specifications and retailer prices

From £21,252 GBP
$28,475 USD
As of October 31, 2026
Save £15,400 GBP (42%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £36,652 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 2.6ct natural round diamond

This 2.6ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6445645038. Listed at 22 retailers as of October 31, 2026, with prices from £21,252 to £36,652, a £15,400 spread on the same certified stone. MOH London lists it at £36,652. 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

2.60
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6445645038
Dimensions8.75 × 8.69 × 5.47 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
8.75 mm8.69 mm2.60 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445645038
Side View
Table 58.0%Crown 36°Girdle: NUL-NULPavilion 40.8°Culet: NoneDepth 62.7%

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: Oct 31
Current: £36,652 GBP|Low: £20,535 GBP|High: £37,094 GBP|Avg: £25,754 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 3£20,535 GBP
Retailer 5£21,367 GBP
Retailer 6£23,169 GBP
Retailer 7£23,367 GBP
Retailer 9£23,450 GBP
Retailer 11£23,468 GBP
Retailer 4£23,833 GBP
Retailer 14£24,446 GBP
Retailer 12£24,642 GBP
Retailer 13£25,424 GBP
Retailer 8£26,258 GBP
Retailer 15£26,402 GBP
Retailer 2£28,349 GBP
Retailer 10£32,452 GBP
MOH London£36,652 GBP

29 data points across 15 retailers

22 retailers£21,252 GBP to £36,652 GBP

Retailer 1
-
£20,535 GBP
$27,515 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
£21,252 GBP
$28,475 USD
View
B+
Retailer 3
-
£21,367 GBP
$28,629 USD
View
Retailer 4
-
£23,169 GBP
A$47,760 AUD
View
Price last confirmed 34 days ago
B
Retailer 5
-
£23,367 GBP
$31,309 USD
View
B
Retailer 6
-
£23,450 GBP
View
B
Retailer 7
-
£23,468 GBP
$31,445 USD
View
B
Retailer 8
-
£23,833 GBP
$31,934 USD
View
Retailer 9
-
£23,833 GBP
$31,934 USD
View
Price last confirmed 18 days ago
Retailer 10
-
£23,833 GBP
$31,934 USD
View
Price last confirmed 34 days ago
B
Retailer 11
-
£24,151 GBP
$32,360 USD
View
B
Retailer 12
-
£24,151 GBP
$32,360 USD
View
B
Retailer 13
-
£24,446 GBP
$32,755 USD
View
B
Retailer 14
-
£24,642 GBP
$33,017 USD
View
B
Retailer 15
-
£24,957 GBP
$33,440 USD
View
B
Retailer 16
-
£25,092 GBP
$33,620 USD
View
B
Retailer 17
-
£25,424 GBP
$34,065 USD
View
B
Retailer 18
-
£26,258 GBP
View
B
Retailer 19
-
£26,402 GBP
$35,376 USD
View
B
Retailer 20
-
£28,349 GBP
€36,176 EUR
View
B
Retailer 21
-
£32,452 GBP
ZAR 702,447 ZAR
View
Most Expensive
B
MOH London
6C4F70D27 · Nov 1
£36,652 GBP
View
21 more retailers have this diamond
Prices start from £21,252 GBPSave up to £15,400 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+
2.60ct Round
£21,252 GBP