CaratHunter
Plans
Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6541799178

Certificate GIA 6541799178

Diamond specifications and retailer prices

From $17,841 NZD
As of November 6, 2026
Save $9,795 NZD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $27,635 NZD 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 6541799178. Listed at 11 retailers as of November 5, 2026, with prices from $17,841 to $27,635, a $9,795 spread on the same certified stone. NZ Jewellers lists it at $27,635. 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 6541799178
Dimensions8.68 × 8.64 × 5.42 mm
L/W Ratio1.00
Star length55%
Top View
8.68 mm8.64 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541799178
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.6°Culet: NoneDepth 62.6%

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 6
Current: $27,635 NZD|Low: $17,841 NZD|High: $27,635 NZD|Avg: $21,316 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4$17,841 NZD
Retailer 9$18,303 NZD
Retailer 8$18,305 NZD
Retailer 2$18,974 NZD
Retailer 11$19,828 NZD
Retailer 3$20,134 NZD
Retailer 7$20,822 NZD
Retailer 5$22,768 NZD
Retailer 10$22,878 NZD
Retailer 6$25,826 NZD
NZ Jewellers$27,635 NZD

29 data points across 11 retailers

11 retailers$17,841 NZD to $27,635 NZD

A
Cheapest Retailer
-
$17,841 NZD
Retailer 2
-
$18,303 NZD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$18,305 NZD
View
A
Retailer 4
-
$18,974 NZD
View
A
Retailer 5
-
$19,828 NZD
View
A
Retailer 6
-
$20,134 NZD
View
A
Retailer 7
-
$20,822 NZD
View
B+
Retailer 8
-
$22,768 NZD
View
B+
Retailer 9
-
$22,878 NZD
View
B+
Retailer 10
-
$25,826 NZD
View
Most Expensive
B+
NZ Jewellers
55130f87-974a-47b4-9126-a31325fafd30 · Nov 5
$27,635 NZD
$15,535 USD
View
10 more retailers have this diamond
Prices start from $17,841 NZDSave up to $9,795 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
$17,841 NZD