Round|Natural|GIA

2.59ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1549227427

Certificate GIA 1549227427

Diamond specifications and retailer prices

From $23,313 USD
As of October 30, 2026
Save $17,004 USD (42%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $40,317 USD at MOH London · As of October 29, 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 29, 2026, with prices from $23,313 to $40,317, a $17,004 spread on the same certified stone. MOH London lists it at $40,317. 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
Color
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 30
Current: $40,317 USD|Low: $23,313 USD|High: $40,585 USD|Avg: $28,598 USD|-0.4%
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
October 31, 2026
Retailer 4$23,313 USD
Retailer 7$23,378 USD
Retailer 6$24,608 USD
Retailer 8$24,995 USD
Retailer 16$25,678 USD
Retailer 9$25,879 USD
Retailer 2$25,907 USD
Retailer 5$26,288 USD
Retailer 17$26,748 USD
Retailer 15$26,962 USD
Retailer 14$27,818 USD
Retailer 10$28,816 USD
Retailer 3$28,887 USD
Retailer 11$31,238 USD
Retailer 12$33,833 USD
Retailer 13$35,318 USD
MOH London$40,317 USD

33 data points across 17 retailers

19 retailers$23,313 USD to $40,317 USD

B+
Cheapest Retailer
-
$23,313 USD
B+
Retailer 2
-
$23,378 USD
View
B+
Retailer 3
-
$24,608 USD
View
Final sale: no returns
B+
Retailer 4
-
$24,995 USD
View
B
Retailer 5
-
$25,678 USD
View
Retailer 6
-
$25,879 USD
A$39,814 AUD
View
Price last confirmed 27 days ago
B+
Retailer 7
-
$25,907 USD
£20,399 GBP
View
B
Retailer 8
-
$26,288 USD
View
Retailer 9
-
$26,288 USD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
$26,748 USD
View
B+
Retailer 11
-
$26,962 USD
View
B+
Retailer 12
-
$27,447 USD
View
B+
Retailer 13
-
$27,818 USD
View
B+
Retailer 14
-
$28,816 USD
£22,690 GBP
View
B
Retailer 15
-
$28,887 USD
View
B
Retailer 16
-
$31,238 USD
€29,750 EUR
View
B
Retailer 17
-
$33,833 USD
£26,640 GBP
View
B
Retailer 18
-
$35,318 USD
ZAR 570,561 ZAR
View
Most Expensive
B
MOH London
3DA494F7E · Oct 29
$40,317 USD
£31,746 GBP
View
18 more retailers have this diamond
Prices start from $23,313 USDSave up to $17,004 USD

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
$23,313 USD