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Round|Natural|GIA

2.59ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1549227427

Certificate GIA 1549227427

Diamond specifications and retailer prices

From £17,399 GBP
$23,313 USD
As of October 31, 2026
Save £12,531 GBP (42%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £29,930 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 2.59ct natural round diamond

This 2.59ct 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 1549227427. Listed at 19 retailers as of October 31, 2026, with prices from £17,399 to £29,930, a £12,531 spread on the same certified stone. MOH London lists it at £29,930. 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

2.59
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1549227427
Dimensions8.68 × 8.73 × 5.47 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Twinning Wisp, Feather, Needle
Top View
8.68 mm8.73 mm2.59 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549227427
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.8%

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: £29,930 GBP|Low: £17,399 GBP|High: £30,290 GBP|Avg: £21,252 GBP|-0.9%
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 4£17,399 GBP
Retailer 7£17,448 GBP
Retailer 6£18,366 GBP
Retailer 8£18,655 GBP
Retailer 16£19,164 GBP
Retailer 11£19,174 GBP
Retailer 9£19,314 GBP
Retailer 5£19,620 GBP
Retailer 17£19,963 GBP
Retailer 15£20,123 GBP
Retailer 14£20,761 GBP
Retailer 2£21,442 GBP
Retailer 3£21,559 GBP
Retailer 10£23,150 GBP
Retailer 13£25,250 GBP
Retailer 12£26,500 GBP
MOH London£29,930 GBP

32 data points across 17 retailers

19 retailers£17,399 GBP to £29,930 GBP

B+
Cheapest Retailer
-
£17,399 GBP
$23,313 USD
B+
Retailer 2
-
£17,448 GBP
$23,378 USD
View
B+
Retailer 3
-
£18,366 GBP
$24,608 USD
View
Final sale: no returns
B+
Retailer 4
-
£18,655 GBP
$24,995 USD
View
B
Retailer 5
-
£19,164 GBP
$25,678 USD
View
B+
Retailer 6
-
£19,174 GBP
View
Retailer 7
-
£19,314 GBP
A$39,814 AUD
View
Price last confirmed 28 days ago
B
Retailer 8
-
£19,620 GBP
$26,288 USD
View
Retailer 9
-
£19,620 GBP
$26,288 USD
View
Price last confirmed 23 days ago
B+
Retailer 10
-
£19,963 GBP
$26,748 USD
View
B+
Retailer 11
-
£20,123 GBP
$26,962 USD
View
B+
Retailer 12
-
£20,485 GBP
$27,447 USD
View
B+
Retailer 13
-
£20,761 GBP
$27,818 USD
View
B+
Retailer 14
-
£21,442 GBP
View
B
Retailer 15
-
£21,559 GBP
$28,887 USD
View
B
Retailer 16
-
£23,150 GBP
€29,542 EUR
View
B
Retailer 17
-
£25,250 GBP
View
B
Retailer 18
-
£26,500 GBP
ZAR 573,610 ZAR
View
Most Expensive
B
MOH London
3DA494F7E · Nov 1
£29,930 GBP
View
18 more retailers have this diamond
Prices start from £17,399 GBPSave up to £12,531 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+
2.59ct Round
£17,399 GBP