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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 $10,775 USD
As of November 1, 2026
Save $7,018 USD (39%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $17,793 USD 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 $10,775 to $17,793, a $7,018 spread on the same certified stone. NZ Jewellers lists it at $17,793. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $17,793 USD|Low: $8,962 USD|High: $17,793 USD|Avg: $12,128 USD|+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$8,962 USD
Retailer 9$10,586 USD
Retailer 16$10,775 USD
Retailer 10$10,855 USD
Retailer 6$10,934 USD
Retailer 17$11,011 USD
Retailer 12$11,438 USD
Retailer 4$11,610 USD
Retailer 8$11,900 USD
Retailer 3$12,663 USD
Retailer 18$12,766 USD
Retailer 15$12,963 USD
Retailer 13$13,364 USD
Retailer 2$13,480 USD
Retailer 11$14,659 USD
Retailer 5$14,730 USD
Retailer 14$16,628 USD
NZ Jewellers$17,793 USD

27 data points across 18 retailers

18 retailers$10,775 USD to $17,793 USD

Retailer 1
-
$8,962 USD
Price last confirmed 15 days ago
Retailer 2
-
$10,586 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$10,775 USD
View
Retailer 4
-
$10,855 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$10,934 USD
View
A
Retailer 6
-
$11,011 USD
View
A
Retailer 7
-
$11,438 USD
View
A
Retailer 8
-
$11,610 USD
View
Retailer 9
-
$11,900 USD
View
Price last confirmed 23 days ago
A
Retailer 10
-
$12,663 USD
View
A
Retailer 11
-
$12,766 USD
View
A
Retailer 12
-
$12,963 USD
View
A
Retailer 13
-
$13,364 USD
View
A
Retailer 14
-
$13,480 USD
View
B+
Retailer 15
-
$14,659 USD
View
A
Retailer 16
-
$14,730 USD
View
B+
Retailer 17
-
$16,628 USD
View
Most Expensive
B+
NZ Jewellers
f0009b4b-5cb1-4889-9247-c138f78a67ad · Nov 5
$17,793 USD
View
17 more retailers have this diamond
Prices start from $10,775 USDSave up to $7,018 USD

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
$10,775 USD