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2.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6545165280

Certificate GIA 6545165280

Diamond specifications and retailer prices

From $38,567 NZD
$21,700 USD
As of November 2, 2026
Save $22,968 NZD (37%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $61,535 NZD at MOH London · As of October 29, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545165280. Listed at 7 retailers as of October 29, 2026, with prices from $38,567 to $61,535, a $22,968 spread on the same certified stone. MOH London lists it at $61,535. 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

2.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6545165280
Dimensions8.64 × 8.58 × 5.46 mm
L/W Ratio1.01
Top View
8.64 mm8.58 mm2.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545165280
Side View
Table 56.0%Crown 36°Girdle: THN-THNPavilion 41.2°Culet: NoneDepth 63.4%

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 2
Current: $61,535 NZD|Low: $38,567 NZD|High: $64,986 NZD|Avg: $48,556 NZD|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$38,567 NZD
Retailer 5$39,300 NZD
Retailer 10$42,081 NZD
Retailer 3$45,340 NZD
Retailer 4$45,422 NZD
Retailer 9$46,285 NZD
Retailer 7$46,864 NZD
Retailer 2$54,081 NZD
Retailer 8$55,519 NZD
MOH London$61,535 NZD

28 data points across 10 retailers

7 retailers$38,567 NZD to $61,535 NZD

A
Cheapest Retailer
-
$38,567 NZD
$21,700 USD
A
Retailer 2
-
$39,300 NZD
$22,112 USD
View
B+
Retailer 3
-
$45,340 NZD
£20,087 GBP
View
Retailer 4
-
$45,422 NZD
$25,557 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$46,864 NZD
$26,368 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$55,519 NZD
$31,238 USD
View
Most Expensive
B
MOH London
0872B4462 · Oct 29
$61,535 NZD
£27,262 GBP
View
6 more retailers have this diamond
Prices start from $38,567 NZDSave up to $22,968 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
$38,567 NZD