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Round|Natural|GIA

2.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5556450890

Certificate GIA 5556450890

Diamond specifications and retailer prices

From $13,659 AUD
$9,595 USD
As of October 25, 2026
Save $22,366 AUD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $36,026 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556450890. Listed at 19 retailers as of October 25, 2026, with prices from $13,659 to $36,026, a $22,366 spread on the same certified stone. MOH London lists it at $36,026. 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

2.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556450890
Dimensions8.56 × 8.63 × 5.47 mm
L/W Ratio1.01
Top View
8.56 mm8.63 mm2.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556450890
Side View
Table 55.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $36,026 AUD|Low: $13,659 AUD|High: $36,512 AUD|Avg: $23,729 AUD|-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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 19$13,659 AUD
Retailer 12$14,840 AUD
Retailer 10$20,289 AUD
Retailer 3$21,303 AUD
Retailer 15$21,511 AUD
Retailer 5$21,723 AUD
Retailer 6$21,989 AUD
Retailer 2$23,720 AUD
Retailer 14$24,009 AUD
Retailer 17$24,475 AUD
Retailer 18$24,856 AUD
Retailer 8$25,065 AUD
Retailer 4$25,910 AUD
Retailer 7$25,910 AUD
Retailer 16$26,479 AUD
Retailer 11$26,764 AUD
Retailer 9$26,937 AUD
Retailer 13$27,767 AUD
MOH London$36,026 AUD

24 data points across 19 retailers

19 retailers$13,659 AUD to $36,026 AUD

A
Cheapest Retailer
-
$13,659 AUD
$9,595 USD
A
Retailer 2
-
$14,840 AUD
$10,424 USD
View
B+
Retailer 3
-
$20,289 AUD
$14,252 USD
View
B+
Retailer 4
-
$21,303 AUD
$14,964 USD
View
B+
Retailer 5
-
$21,511 AUD
$15,110 USD
View
B+
Retailer 6
-
$21,723 AUD
CA$21,193 CAD
View
B+
Retailer 7
-
$21,989 AUD
$15,446 USD
View
Final sale: no returns
B+
Retailer 8
-
$23,720 AUD
£13,120 GBP
View
B
Retailer 9
-
$24,009 AUD
$16,865 USD
View
B
Retailer 10
-
$24,475 AUD
$17,192 USD
View
B
Retailer 11
-
$24,856 AUD
$17,460 USD
View
B
Retailer 12
-
$25,065 AUD
$17,607 USD
View
B
Retailer 13
-
$25,910 AUD
$18,200 USD
View
B
Retailer 14
-
$25,910 AUD
$18,200 USD
View
B
Retailer 15
-
$26,479 AUD
£14,646 GBP
View
B
Retailer 16
-
$26,764 AUD
$18,800 USD
View
B+
Retailer 17
-
$26,937 AUD
$18,922 USD
View
B
Retailer 18
-
$27,767 AUD
€18,576 EUR
View
Most Expensive
B
MOH London
18BC854D2 · Oct 29
$36,026 AUD
£19,926 GBP
View
18 more retailers have this diamond
Prices start from $13,659 AUDSave up to $22,366 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.

A
2.50ct Round
$13,659 AUD