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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 $16,029 NZD
$9,034 USD
As of October 31, 2026
Save $28,633 NZD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $44,662 NZD at MOH London · As of November 1, 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 31, 2026, with prices from $16,029 to $44,662, a $28,633 spread on the same certified stone. MOH London lists it at $44,662. 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 31
Current: $44,662 NZD|Low: $16,029 NZD|High: $45,507 NZD|Avg: $29,476 NZD|-1.9%
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
Retailer 18
Retailer 19
November 1, 2026
Retailer 13$16,029 NZD
Retailer 19$17,024 NZD
Retailer 14$18,495 NZD
Retailer 10$25,287 NZD
Retailer 3$26,551 NZD
Retailer 17$26,810 NZD
Retailer 5$27,074 NZD
Retailer 6$27,406 NZD
Retailer 12$29,811 NZD
Retailer 16$29,924 NZD
Retailer 18$30,504 NZD
Retailer 8$31,240 NZD
Retailer 4$32,292 NZD
Retailer 7$32,292 NZD
Retailer 2$32,903 NZD
Retailer 11$33,357 NZD
Retailer 9$33,573 NZD
Retailer 15$34,607 NZD
MOH London$44,662 NZD

24 data points across 19 retailers

19 retailers$16,029 NZD to $44,662 NZD

A
Cheapest Retailer
-
$16,029 NZD
$9,034 USD
Retailer 2
-
$17,024 NZD
$9,595 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$18,495 NZD
$10,424 USD
View
B+
Retailer 4
-
$25,287 NZD
$14,252 USD
View
B+
Retailer 5
-
$26,551 NZD
$14,964 USD
View
B+
Retailer 6
-
$26,810 NZD
$15,110 USD
View
B+
Retailer 7
-
$27,074 NZD
CA$21,193 CAD
View
B+
Retailer 8
-
$27,406 NZD
$15,446 USD
View
Final sale: no returns
B+
Retailer 9
-
$29,811 NZD
£13,230 GBP
View
B+
Retailer 10
-
$29,924 NZD
$16,865 USD
View
B
Retailer 11
-
$30,504 NZD
$17,192 USD
View
B
Retailer 12
-
$31,240 NZD
$17,607 USD
View
B
Retailer 13
-
$32,292 NZD
$18,200 USD
View
B
Retailer 14
-
$32,292 NZD
$18,200 USD
View
B
Retailer 15
-
$32,903 NZD
£14,602 GBP
View
B
Retailer 16
-
$33,357 NZD
$18,800 USD
View
B
Retailer 17
-
$33,573 NZD
$18,922 USD
View
B
Retailer 18
-
$34,607 NZD
€18,576 EUR
View
Most Expensive
B
MOH London
18BC854D2 · Nov 1
$44,662 NZD
£19,820 GBP
View
18 more retailers have this diamond
Prices start from $16,029 NZDSave up to $28,633 NZD

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
$16,029 NZD