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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 €20,023 EUR
$22,458 USD
As of November 1, 2026
Save €10,860 EUR (35%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €34,091 EUR 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 27, 2026, with a 54% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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: €34,091 EUR|Low: €18,975 EUR|High: €34,456 EUR|Avg: €23,620 EUR|-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€18,975 EUR
Retailer 6€19,196 EUR
Retailer 11€20,041 EUR
Retailer 10€21,230 EUR
Retailer 9€22,457 EUR
Retailer 2€23,717 EUR
Retailer 8€25,089 EUR
Retailer 5€25,160 EUR
Retailer 4€25,433 EUR
Retailer 7€26,247 EUR
MOH London€34,091 EUR

39 data points across 11 retailers

22 retailers€20,023 EUR to €30,883 EUR

Retailer 1
-
€19,196 EUR
$21,530 USD
Price last confirmed 8 days ago
A
Retailer 2
-
€20,023 EUR
$22,458 USD
View
Retailer 3
-
€20,041 EUR
$22,478 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€20,212 EUR
$22,670 USD
View
A
Retailer 5
-
€20,515 EUR
CA$31,958 CAD
View
B+
Retailer 6
-
€21,230 EUR
$23,812 USD
View
Final sale: no returns
Retailer 7
-
€21,800 EUR
$24,451 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€22,457 EUR
$25,188 USD
View
Retailer 9
-
€23,243 EUR
$26,070 USD
View
Price last confirmed 7 days ago
Retailer 10
-
€23,243 EUR
$26,070 USD
View
Price last confirmed 7 days ago
Retailer 11
-
€23,300 EUR
$26,134 USD
View
Price last confirmed 8 days ago
Retailer 12
-
€23,616 EUR
$26,488 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
€23,717 EUR
£20,945 GBP
View
Retailer 14
-
€24,019 EUR
$26,940 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
€24,525 EUR
$27,507 USD
View
B+
Retailer 16
-
€25,089 EUR
$28,140 USD
View
B+
Retailer 17
-
€25,160 EUR
£22,220 GBP
View
B+
Retailer 18
-
€25,433 EUR
View
B+
Retailer 19
-
€25,440 EUR
$28,534 USD
View
Retailer 20
-
€26,247 EUR
$29,439 USD
View
Price last confirmed 7 days ago
B
Retailer 21
-
€30,883 EUR
$34,639 USD
View
Most Expensive
MOH London
97D4BD44F · Oct 26
€34,091 EUR
£30,108 GBP
View
Price last confirmed 7 days ago
21 more retailers have this diamond
Prices start from €20,023 EURSave up to €10,860 EUR

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
€20,023 EUR