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Round|Natural|GIA

2.51ct F VS1 Round Natural Diamond

EX • F/VS1

Diamond specifications and retailer prices

From $51,466 AUD
CA$50,211 CAD
As of October 30, 2026
Save $12,911 AUD (20%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $64,377 AUD at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 10 retailers as of October 30, 2026, with prices from $51,466 to $64,377, a $12,911 spread on the same certified stone. The Diamond Guys lists it at $64,377. 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
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions8.62 × 8.68 × 5.42 mm
L/W Ratio1.01
Top View
8.62 mm8.68 mm2.51 ctF / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $55,637 AUD|Low: $47,506 AUD|High: $64,377 AUD|Avg: $57,337 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
October 30, 2026
Retailer 6$47,506 AUD
Retailer 8$51,466 AUD
Retailer 5$53,234 AUD
Retailer 1$55,637 AUD
Retailer 2$58,128 AUD
Retailer 3$61,413 AUD
Retailer 7$63,488 AUD
Retailer 4$63,870 AUD
The Diamond Guys$64,377 AUD

5 data points across 9 retailers

10 retailers$51,466 AUD to $64,377 AUD

Retailer 1
-
$47,506 AUD
$33,370 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$51,466 AUD
CA$50,211 CAD
View
B+
Retailer 3
-
$53,234 AUD
$37,394 USD
View
B+
Retailer 4
-
$55,637 AUD
$39,082 USD
View
Retailer 5
-
$55,639 AUD
$39,083 USD
View
Price last confirmed 11 days ago
B
Retailer 6
-
$58,128 AUD
$40,832 USD
View
B
Retailer 7
-
$61,413 AUD
$43,139 USD
View
B
Retailer 8
-
$63,488 AUD
$44,597 USD
View
B
Retailer 9
-
$63,870 AUD
$44,865 USD
View
Most Expensive
B
The Diamond Guys
1842032638 · Nov 2
$64,377 AUD
$45,221 USD
View
9 more retailers have this diamond
Prices start from $51,466 AUDSave up to $12,911 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.

B+
2.51ct Round
$51,466 AUD