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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6555439015

Certificate GIA 6555439015

Diamond specifications and retailer prices

From $21,285 NZD
As of November 6, 2026
Save $12,082 NZD (36%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $33,367 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555439015. Listed at 11 retailers as of November 5, 2026, with prices from $21,285 to $33,367, a $12,082 spread on the same certified stone. NZ Jewellers lists it at $33,367. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555439015
Dimensions8.65 × 8.71 × 5.36 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.65 mm8.71 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555439015
Side View
Table 55.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.8%

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 6
Current: $33,367 NZD|Low: $21,285 NZD|High: $33,367 NZD|Avg: $25,424 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$21,285 NZD
Retailer 9$22,099 NZD
Retailer 8$22,103 NZD
Retailer 2$22,909 NZD
Retailer 3$23,572 NZD
Retailer 11$23,940 NZD
Retailer 10$24,860 NZD
Retailer 6$25,031 NZD
Retailer 4$27,489 NZD
Retailer 7$31,182 NZD
NZ Jewellers$33,367 NZD

29 data points across 11 retailers

11 retailers$21,285 NZD to $33,367 NZD

A
Cheapest Retailer
-
$21,285 NZD
Retailer 2
-
$22,099 NZD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$22,103 NZD
View
A
Retailer 4
-
$22,909 NZD
View
B+
Retailer 5
-
$23,572 NZD
View
B+
Retailer 6
-
$23,940 NZD
View
B+
Retailer 7
-
$24,860 NZD
View
B+
Retailer 8
-
$25,031 NZD
View
B+
Retailer 9
-
$27,489 NZD
View
B
Retailer 10
-
$31,182 NZD
View
Most Expensive
B
NZ Jewellers
cc57180c-0f92-4f30-aad4-34c218e72643 · Nov 5
$33,367 NZD
$18,757 USD
View
10 more retailers have this diamond
Prices start from $21,285 NZDSave up to $12,082 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
$21,285 NZD