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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5516808668

Certificate GIA 5516808668

Diamond specifications and retailer prices

From $15,065 CAD
As of November 4, 2026
Save $8,308 CAD (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $24,767 CAD at NZ Jewellers · As of October 6, 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 5516808668. Listed at 10 retailers as of November 4, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5516808668
Dimensions8.60 × 8.53 × 5.39 mm
L/W Ratio1.01
Star length50%
Top View
8.60 mm8.53 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5516808668
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.9%

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: $17,171 CAD|Low: $13,551 CAD|High: $23,561 CAD|Avg: $17,196 CAD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$13,551 CAD
Retailer 7$15,065 CAD
Retailer 10$15,080 CAD
Retailer 9$15,230 CAD
Retailer 6$16,099 CAD
Retailer 1$17,171 CAD
Retailer 4$18,761 CAD
Retailer 2$20,364 CAD
Retailer 3$20,604 CAD
Retailer 5$23,373 CAD

23 data points across 10 retailers

10 retailers$15,065 CAD to $23,373 CAD

Retailer 1
-
$13,551 CAD
Price last confirmed 9 days ago
A
Retailer 2
-
$15,065 CAD
View
Retailer 3
-
$16,099 CAD
View
Price last confirmed 29 days ago
Retailer 4
-
$16,346 CAD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$17,171 CAD
View
Retailer 6
-
$18,575 CAD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
$18,761 CAD
View
B+
Retailer 8
-
$20,604 CAD
View
B
Retailer 9
-
$23,373 CAD
View
Most Expensive
NZ Jewellers
054bfbd2-230a-4ad5-b6b0-bc8dae8d540a · Oct 6
$24,767 CAD
$17,734 USD
View
Price last confirmed 31 days ago
9 more retailers have this diamond
Prices start from $15,065 CADSave up to $8,308 CAD

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
$15,065 CAD