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Round|Natural|GIA

2.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1558779805

Certificate GIA 1558779805

Diamond specifications and retailer prices

From $14,146 NZD
As of November 5, 2026
Save $11,263 NZD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $25,409 NZD at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558779805. Listed at 14 retailers as of November 4, 2026, with prices from $14,146 to $25,409, a $11,263 spread on the same certified stone. MOH London lists it at $25,409. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558779805
Dimensions8.59 × 8.65 × 5.43 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Indented Natural, Natural
Top View
8.59 mm8.65 mm2.50 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558779805
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.0%

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: Nov 5
Current: $25,409 NZD|Low: $14,146 NZD|High: $25,409 NZD|Avg: $18,624 NZD|+6.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$14,146 NZD
Retailer 6$16,707 NZD
Retailer 4$17,549 NZD
Retailer 8$19,009 NZD
Retailer 3$19,959 NZD
Retailer 7$20,256 NZD
Retailer 2$23,172 NZD
MOH London$25,409 NZD

32 data points across 8 retailers

14 retailers$14,146 NZD to $25,409 NZD

A
Cheapest Retailer
-
$14,146 NZD
Retailer 2
-
$15,951 NZD
View
Price last confirmed 25 days ago
B+
Retailer 3
-
$16,707 NZD
View
Retailer 4
-
$16,723 NZD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$17,549 NZD
View
Retailer 6
-
$18,116 NZD
View
Price last confirmed 29 days ago
Retailer 7
-
$18,744 NZD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$19,009 NZD
View
B+
Retailer 9
-
$19,959 NZD
View
B+
Retailer 10
-
$20,256 NZD
View
Retailer 11
-
$20,904 NZD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$23,172 NZD
View
Retailer 13
-
$25,250 NZD
View
Price last confirmed 34 days ago
Most Expensive
B+
MOH London
CBA3A498F · Nov 4
$25,409 NZD
£11,247 GBP
View
13 more retailers have this diamond
Prices start from $14,146 NZDSave up to $11,263 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
$14,146 NZD