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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 $17,554 NZD
As of November 6, 2026
Save $12,429 NZD (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $29,983 NZD 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 $17,554 to $29,983, a $12,429 spread on the same certified stone. NZ Jewellers lists it at $29,983. 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: $29,983 NZD|Low: $17,552 NZD|High: $29,983 NZD|Avg: $21,746 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$17,554 NZD
Retailer 4$19,531 NZD
Retailer 7$20,164 NZD
Retailer 5$20,977 NZD
Retailer 2$21,660 NZD
Retailer 3$22,119 NZD
NZ Jewellers$29,983 NZD

20 data points across 7 retailers

7 retailers$17,554 NZD to $29,983 NZD

A
Cheapest Retailer
-
$17,554 NZD
B+
Retailer 2
-
$19,531 NZD
View
B+
Retailer 3
-
$20,164 NZD
View
B+
Retailer 4
-
$20,977 NZD
View
B+
Retailer 5
-
$21,660 NZD
View
B+
Retailer 6
-
$22,119 NZD
View
Most Expensive
B
NZ Jewellers
07a642f4-5d7c-4ff5-8bfc-90baf1ca771f · Nov 5
$29,983 NZD
$16,855 USD
View
6 more retailers have this diamond
Prices start from $17,554 NZDSave up to $12,429 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
2.51ct Round
$17,554 NZD