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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1568303599

Certificate GIA 1568303599

Diamond specifications and retailer prices

From $18,232 NZD
As of November 5, 2026
Save $16,487 NZD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $34,719 NZD at With Clarity · As of November 4, 2026
View at With Clarity

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 1568303599. Listed at 11 retailers as of November 4, 2026, with prices from $18,232 to $34,719, a $16,487 spread on the same certified stone. With Clarity lists it at $34,719. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1568303599
Dimensions8.63 × 8.59 × 5.40 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.63 mm8.59 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568303599
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NDepth 62.7%

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 5
Current: $24,538 NZD|Low: $18,131 NZD|High: $34,025 NZD|Avg: $23,387 NZD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 5, 2026
Retailer 3$18,232 NZD
Retailer 2$19,376 NZD
Retailer 4$20,813 NZD
Retailer 8$20,931 NZD
Retailer 10$21,025 NZD
Retailer 6$21,414 NZD
Retailer 1$24,538 NZD
Retailer 9$24,552 NZD
Retailer 5$24,736 NZD
Retailer 7$25,581 NZD
With Clarity$34,025 NZD

26 data points across 11 retailers

11 retailers$18,232 NZD to $34,719 NZD

A
Cheapest Retailer
-
$18,232 NZD
A
Retailer 2
-
$19,376 NZD
View
A
Retailer 3
-
$20,813 NZD
View
A
Retailer 4
-
$20,931 NZD
View
A
Retailer 5
-
$21,025 NZD
View
A
Retailer 6
-
$21,414 NZD
View
B+
Retailer 7
-
$24,538 NZD
View
B+
Retailer 8
-
$24,552 NZD
View
B+
Retailer 9
-
$24,736 NZD
View
B+
Retailer 10
-
$25,581 NZD
View
Most Expensive
B
With Clarity
1568303599 · Nov 4
$34,719 NZD
$19,517 USD
View
10 more retailers have this diamond
Prices start from $18,232 NZDSave up to $16,487 NZD

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
$18,232 NZD