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Round|Natural|IGI

2.50ct K IF Round Natural Diamond

EX • K/IF • IGI 581306178

Shape and cutting style on the report: Round brilliant

Certificate IGI 581306178

Diamond specifications and retailer prices

From $15,392 AUD
As of November 1, 2026
Save $10,025 AUD (39%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $25,417 AUD 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 581306178. Listed at 18 retailers as of November 1, 2026, with prices from $15,392 to $25,417, a $10,025 spread on the same certified stone. NZ Jewellers lists it at $25,417. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.50
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 581306178
Dimensions8.57 × 8.50 × 5.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.57 mm8.50 mm2.50 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 581306178
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 40.8°Culet: 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: Nov 1
Current: $25,417 AUD|Low: $12,802 AUD|High: $25,417 AUD|Avg: $17,325 AUD|+8.6%
NZ Jewellers
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
November 6, 2026
Retailer 7$12,802 AUD
Retailer 9$15,122 AUD
Retailer 16$15,392 AUD
Retailer 10$15,506 AUD
Retailer 6$15,619 AUD
Retailer 17$15,729 AUD
Retailer 12$16,339 AUD
Retailer 4$16,585 AUD
Retailer 8$16,999 AUD
Retailer 3$18,089 AUD
Retailer 18$18,236 AUD
Retailer 15$18,518 AUD
Retailer 13$19,090 AUD
Retailer 2$19,256 AUD
Retailer 11$20,940 AUD
Retailer 5$21,042 AUD
Retailer 14$23,753 AUD
NZ Jewellers$25,417 AUD

27 data points across 18 retailers

18 retailers$15,392 AUD to $25,417 AUD

Retailer 1
-
$12,802 AUD
Price last confirmed 15 days ago
Retailer 2
-
$15,122 AUD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$15,392 AUD
View
Retailer 4
-
$15,506 AUD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$15,619 AUD
View
A
Retailer 6
-
$15,729 AUD
View
A
Retailer 7
-
$16,339 AUD
View
A
Retailer 8
-
$16,585 AUD
View
Retailer 9
-
$16,999 AUD
View
Price last confirmed 23 days ago
A
Retailer 10
-
$18,089 AUD
View
A
Retailer 11
-
$18,236 AUD
View
A
Retailer 12
-
$18,518 AUD
View
A
Retailer 13
-
$19,090 AUD
View
A
Retailer 14
-
$19,256 AUD
View
B+
Retailer 15
-
$20,940 AUD
View
A
Retailer 16
-
$21,042 AUD
View
B+
Retailer 17
-
$23,753 AUD
View
Most Expensive
B+
NZ Jewellers
f0009b4b-5cb1-4889-9247-c138f78a67ad · Nov 5
$25,417 AUD
$17,793 USD
View
17 more retailers have this diamond
Prices start from $15,392 AUDSave up to $10,025 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
$15,392 AUD