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Round|Natural|GIA

2.51ct M VS1 Round Natural Diamond

EX • M/VS1 • GIA 1478171738

Certificate GIA 1478171738

Diamond specifications and retailer prices

From $14,096 AUD
As of November 6, 2026
Save $9,981 AUD (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $24,077 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 M colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1478171738. Listed at 7 retailers as of November 5, 2026, with prices from $14,096 to $24,077, a $9,981 spread on the same certified stone. NZ Jewellers lists it at $24,077. 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
M
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1478171738
Dimensions8.62 × 8.68 × 5.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
8.62 mm8.68 mm2.51 ctM / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1478171738
Side View
Table 59.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.2%

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 6
Current: $24,077 AUD|Low: $14,095 AUD|High: $24,077 AUD|Avg: $17,463 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$14,096 AUD
Retailer 4$15,684 AUD
Retailer 7$16,192 AUD
Retailer 5$16,845 AUD
Retailer 2$17,393 AUD
Retailer 3$17,762 AUD
NZ Jewellers$24,077 AUD

20 data points across 7 retailers

7 retailers$14,096 AUD to $24,077 AUD

A
Cheapest Retailer
-
$14,096 AUD
B+
Retailer 2
-
$15,684 AUD
View
B+
Retailer 3
-
$16,192 AUD
View
B+
Retailer 4
-
$16,845 AUD
View
B+
Retailer 5
-
$17,393 AUD
View
B+
Retailer 6
-
$17,762 AUD
View
Most Expensive
B
NZ Jewellers
07a642f4-5d7c-4ff5-8bfc-90baf1ca771f · Nov 5
$24,077 AUD
$16,855 USD
View
6 more retailers have this diamond
Prices start from $14,096 AUDSave up to $9,981 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
$14,096 AUD