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Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1

Diamond specifications and retailer prices

From $19,825 AUD
As of November 4, 2026
Save $11,459 AUD (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $31,284 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 9 retailers as of November 4, 2026, with prices from $19,825 to $31,284, a $11,459 spread on the same certified stone. NZ Jewellers lists it at $31,284. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions8.60 × 8.63 × 5.45 mm
L/W Ratio1.00
Top View
8.60 mm8.63 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 56.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.2%

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: $31,284 AUD|Low: $19,825 AUD|High: $31,941 AUD|Avg: $24,888 AUD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$19,825 AUD
Retailer 9$22,392 AUD
Retailer 7$23,720 AUD
Retailer 6$23,923 AUD
Retailer 4$23,970 AUD
Retailer 3$24,560 AUD
Retailer 2$24,843 AUD
Retailer 5$26,380 AUD
NZ Jewellers$31,284 AUD

14 data points across 9 retailers

9 retailers$19,825 AUD to $31,284 AUD

A
Cheapest Retailer
-
$19,825 AUD
Retailer 2
-
$22,392 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$23,720 AUD
View
B+
Retailer 4
-
$23,923 AUD
View
B+
Retailer 5
-
$23,970 AUD
View
B+
Retailer 6
-
$24,560 AUD
View
B+
Retailer 7
-
$24,843 AUD
View
B+
Retailer 8
-
$26,380 AUD
View
Most Expensive
B
NZ Jewellers
af394ada-1d6f-442d-99f6-ff6a02cdd7de · Nov 5
$31,284 AUD
$21,900 USD
View
8 more retailers have this diamond
Prices start from $19,825 AUDSave up to $11,459 AUD

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
2.51ct Round
$19,825 AUD