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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 $33,188 AUD
$23,313 USD
As of November 2, 2026
Save $23,902 AUD (42%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $57,090 AUD 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 November 1, 2026, with prices from $33,188 to $57,090, a $23,902 spread on the same certified stone. MOH London lists it at $57,090. 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: Nov 2
Current: $57,090 AUD|Low: $33,188 AUD|High: $57,777 AUD|Avg: $40,515 AUD|-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 2, 2026
Retailer 4$33,188 AUD
Retailer 7$33,281 AUD
Retailer 6$35,032 AUD
Retailer 8$35,583 AUD
Retailer 16$36,555 AUD
Retailer 9$36,842 AUD
Retailer 10$36,881 AUD
Retailer 5$37,424 AUD
Retailer 17$38,078 AUD
Retailer 15$38,383 AUD
Retailer 14$39,602 AUD
Retailer 2$40,897 AUD
Retailer 3$41,124 AUD
Retailer 11$44,159 AUD
Retailer 13$48,164 AUD
Retailer 12$50,547 AUD
MOH London$57,090 AUD

32 data points across 17 retailers

19 retailers$33,188 AUD to $57,090 AUD

B+
Cheapest Retailer
-
$33,188 AUD
$23,313 USD
B+
Retailer 2
-
$33,281 AUD
$23,378 USD
View
B+
Retailer 3
-
$35,032 AUD
$24,608 USD
View
Final sale: no returns
B+
Retailer 4
-
$35,583 AUD
$24,995 USD
View
B
Retailer 5
-
$36,555 AUD
$25,678 USD
View
Retailer 6
-
$36,842 AUD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
$36,881 AUD
£20,399 GBP
View
B
Retailer 8
-
$37,424 AUD
$26,288 USD
View
Retailer 9
-
$37,424 AUD
$26,288 USD
View
Price last confirmed 24 days ago
B+
Retailer 10
-
$38,078 AUD
$26,748 USD
View
B+
Retailer 11
-
$38,383 AUD
$26,962 USD
View
B+
Retailer 12
-
$39,074 AUD
$27,447 USD
View
B+
Retailer 13
-
$39,602 AUD
$27,818 USD
View
B+
Retailer 14
-
$40,897 AUD
£22,620 GBP
View
B
Retailer 15
-
$41,124 AUD
$28,887 USD
View
B
Retailer 16
-
$44,159 AUD
€29,542 EUR
View
B
Retailer 17
-
$48,164 AUD
£26,640 GBP
View
B
Retailer 18
-
$50,547 AUD
ZAR 573,610 ZAR
View
Most Expensive
B
MOH London
3DA494F7E · Nov 1
$57,090 AUD
£31,577 GBP
View
18 more retailers have this diamond
Prices start from $33,188 AUDSave up to $23,902 AUD

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
$33,188 AUD