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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6561216159

Certificate GIA 6561216159

Diamond specifications and retailer prices

From $8,587 USD
As of November 4, 2026
Save $7,827 USD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $16,414 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561216159. Listed at 17 retailers as of November 4, 2026, with prices from $8,587 to $16,414, a $7,827 spread on the same certified stone. NZ Jewellers lists it at $16,414. 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 angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561216159
Dimensions8.61 × 8.66 × 5.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Crystal, Needle
Top View
8.61 mm8.66 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561216159
Side View
Table 58.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 62.6%

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 4
Current: $11,270 USD|Low: $8,575 USD|High: $15,566 USD|Avg: $11,813 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$8,587 USD
Retailer 4$10,604 USD
Retailer 7$11,225 USD
Retailer 1$11,270 USD
Retailer 3$11,783 USD
Retailer 2$13,523 USD
Retailer 5$15,340 USD

29 data points across 7 retailers

17 retailers$8,587 USD to $16,414 USD

A
Cheapest Retailer
-
$8,587 USD
A
Retailer 2
-
$10,086 USD
View
A
Retailer 3
-
$10,341 USD
View
A
Retailer 4
-
$10,604 USD
View
A
Retailer 5
-
$10,730 USD
View
Retailer 6
-
$10,871 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$11,005 USD
View
A
Retailer 8
-
$11,225 USD
View
A
Retailer 9
-
$11,270 USD
View
A
Retailer 10
-
$11,777 USD
View
A
Retailer 11
-
$11,783 USD
View
A
Retailer 12
-
$11,958 USD
View
A
Retailer 13
-
$12,055 USD
View
B+
Retailer 14
-
$13,523 USD
View
B+
Retailer 15
-
$13,589 USD
View
B+
Retailer 16
-
$15,340 USD
View
Most Expensive
B
NZ Jewellers
d27d4636-6f5d-43e4-a4e7-2bc26c05caff · Nov 5
$16,414 USD
View
16 more retailers have this diamond
Prices start from $8,587 USDSave up to $7,827 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
$8,587 USD