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Round|Natural|GIA

2.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6535246891

Certificate GIA 6535246891

Diamond specifications and retailer prices

From $39,915 NZD
$22,458 USD
As of November 1, 2026
Save $28,044 NZD (41%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $67,959 NZD at MOH London · As of October 26, 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 6535246891. Listed at 22 retailers as of October 26, 2026, with prices from $39,915 to $67,959, a $28,044 spread on the same certified stone. MOH London lists it at $67,959. 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
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6535246891
Dimensions8.94 × 8.83 × 5.34 mm
L/W Ratio1.01
Top View
8.94 mm8.83 mm2.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6535246891
Side View
Table 55.0%Crown 32°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 60.1%

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 1
Current: $67,959 NZD|Low: $37,824 NZD|High: $68,686 NZD|Avg: $47,089 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$37,824 NZD
Retailer 6$38,265 NZD
Retailer 11$39,950 NZD
Retailer 10$42,321 NZD
Retailer 9$44,767 NZD
Retailer 2$47,277 NZD
Retailer 8$50,013 NZD
Retailer 5$50,154 NZD
Retailer 4$50,698 NZD
Retailer 7$52,322 NZD
MOH London$67,959 NZD

40 data points across 11 retailers

22 retailers$39,915 NZD to $67,959 NZD

Retailer 1
-
$38,265 NZD
$21,530 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$39,915 NZD
$22,458 USD
View
A
Retailer 3
-
$39,950 NZD
$22,478 USD
View
A
Retailer 4
-
$40,291 NZD
$22,670 USD
View
A
Retailer 5
-
$40,895 NZD
CA$31,958 CAD
View
B+
Retailer 6
-
$42,321 NZD
$23,812 USD
View
Final sale: no returns
Retailer 7
-
$43,457 NZD
$24,451 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$44,767 NZD
$25,188 USD
View
Retailer 9
-
$46,334 NZD
$26,070 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$46,334 NZD
$26,070 USD
View
Retailer 11
-
$46,448 NZD
$26,134 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$47,077 NZD
$26,488 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$47,277 NZD
£20,945 GBP
View
Retailer 14
-
$47,880 NZD
$26,940 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$48,888 NZD
$27,507 USD
View
B+
Retailer 16
-
$50,013 NZD
$28,140 USD
View
B+
Retailer 17
-
$50,154 NZD
£22,220 GBP
View
B+
Retailer 18
-
$50,698 NZD
€27,167 EUR
View
B+
Retailer 19
-
$50,713 NZD
$28,534 USD
View
B
Retailer 20
-
$52,322 NZD
$29,439 USD
View
B
Retailer 21
-
$61,564 NZD
$34,639 USD
View
Most Expensive
B
MOH London
97D4BD44F · Oct 26
$67,959 NZD
£30,108 GBP
View
21 more retailers have this diamond
Prices start from $39,915 NZDSave up to $28,044 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
$39,915 NZD