Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6541799178

Certificate GIA 6541799178

Diamond specifications and retailer prices

From $10,029 USD
As of November 6, 2026
Save $5,506 USD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,535 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 6541799178. Listed at 11 retailers as of November 5, 2026, with prices from $10,029 to $15,535, a $5,506 spread on the same certified stone. NZ Jewellers lists it at $15,535. 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 angle36.5°
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $15,535 USD|Low: $10,029 USD|High: $15,535 USD|Avg: $11,982 USD
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$10,029 USD
Retailer 9$10,289 USD
Retailer 8$10,290 USD
Retailer 2$10,666 USD
Retailer 11$11,146 USD
Retailer 3$11,318 USD
Retailer 7$11,705 USD
Retailer 5$12,799 USD
Retailer 10$12,861 USD
Retailer 6$14,518 USD
NZ Jewellers$15,535 USD

29 data points across 11 retailers

11 retailers$10,029 USD to $15,535 USD

A
Cheapest Retailer
-
$10,029 USD
Retailer 2
-
$10,289 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$10,290 USD
View
A
Retailer 4
-
$10,666 USD
View
A
Retailer 5
-
$11,146 USD
View
A
Retailer 6
-
$11,318 USD
View
A
Retailer 7
-
$11,705 USD
View
B+
Retailer 8
-
$12,799 USD
View
B+
Retailer 9
-
$12,861 USD
View
B+
Retailer 10
-
$14,518 USD
View
Most Expensive
B+
NZ Jewellers
55130f87-974a-47b4-9126-a31325fafd30 · Nov 5
$15,535 USD
View
10 more retailers have this diamond
Prices start from $10,029 USDSave up to $5,506 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
$10,029 USD