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Round|Natural|GIA

2.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 7551086546

Certificate GIA 7551086546

Diamond specifications and retailer prices

From $15,235 AUD
As of November 4, 2026
Save $12,651 AUD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $27,886 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551086546. Listed at 13 retailers as of November 4, 2026, with prices from $15,235 to $27,886, a $12,651 spread on the same certified stone. NZ Jewellers lists it at $27,886. 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
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551086546
Dimensions8.62 × 8.58 × 5.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Etch Channel, Indented Natural, Cavity, Feather, Needle, Crystal
Top View
8.62 mm8.58 mm2.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7551086546
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.4%

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 4
Current: $23,767 AUD|Low: $15,235 AUD|High: $26,444 AUD|Avg: $20,625 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$15,235 AUD
Retailer 2$17,689 AUD
Retailer 7$18,405 AUD
Retailer 6$18,521 AUD
Retailer 4$21,012 AUD
Retailer 1$23,767 AUD
Retailer 3$26,060 AUD

39 data points across 7 retailers

13 retailers$15,235 AUD to $27,886 AUD

A
Cheapest Retailer
-
$15,235 AUD
A
Retailer 2
-
$15,405 AUD
View
A
Retailer 3
-
$15,524 AUD
View
Retailer 4
-
$16,732 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$17,689 AUD
View
B+
Retailer 6
-
$18,126 AUD
View
B+
Retailer 7
-
$18,405 AUD
View
A
Retailer 8
-
$18,521 AUD
View
B+
Retailer 9
-
$20,915 AUD
View
B+
Retailer 10
-
$21,012 AUD
View
B
Retailer 11
-
$23,767 AUD
View
B
Retailer 12
-
$26,060 AUD
View
Most Expensive
B
NZ Jewellers
b2cfbda9-8574-4130-a8b2-2325c9f92830 · Nov 5
$27,886 AUD
$19,521 USD
View
12 more retailers have this diamond
Prices start from $15,235 AUDSave up to $12,651 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
$15,235 AUD