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Round|Natural|GIA

2.51ct F SI1 Round Natural Diamond

VG • F/SI1 • GIA 6552280866

Certificate GIA 6552280866

Diamond specifications and retailer prices

From €18,150 EUR
£16,029 GBP
As of November 2, 2026
Save €12,100 EUR (40%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €30,250 EUR at MOH London · As of November 2, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6552280866. Listed at 11 retailers as of November 2, 2026, with prices from €18,150 to €30,250, a €12,100 spread on the same certified stone. MOH London lists it at €30,250. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6552280866
Dimensions8.35 × 8.47 × 5.45 mm
L/W Ratio1.01
Girdle conditionThick
Key to symbols
Cloud, Crystal, Needle
Top View
8.35 mm8.47 mm2.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552280866
Side View
Table 58.0%Crown 38°GirdlePavilion 40.4°CuletDepth 64.8%

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: €30,250 EUR|Low: €18,150 EUR|High: €32,085 EUR|Avg: €23,563 EUR|-5.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3€18,150 EUR
Retailer 4€19,551 EUR
Retailer 6€20,827 EUR
Retailer 7€20,855 EUR
Retailer 2€21,362 EUR
Retailer 5€26,725 EUR
MOH London€30,250 EUR

36 data points across 7 retailers

11 retailers€18,150 EUR to €30,250 EUR

A
Cheapest Retailer
-
€18,150 EUR
£16,029 GBP
A
Retailer 2
-
€19,551 EUR
$21,928 USD
View
B+
Retailer 3
-
€20,827 EUR
$23,360 USD
View
Retailer 4
-
€20,855 EUR
A$35,987 AUD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
€21,362 EUR
£18,866 GBP
View
Retailer 6
-
€23,412 EUR
$26,259 USD
View
Price last confirmed 34 days ago
Retailer 7
-
€24,155 EUR
$27,092 USD
View
Price last confirmed 29 days ago
Retailer 8
-
€24,274 EUR
$27,226 USD
View
Price last confirmed 38 days ago
B
Retailer 9
-
€26,725 EUR
$29,975 USD
View
Retailer 10
-
€28,758 EUR
$32,255 USD
View
Price last confirmed 36 days ago
Most Expensive
B
MOH London
22BD971B2 · Nov 2
€30,250 EUR
£26,715 GBP
View
10 more retailers have this diamond
Prices start from €18,150 EURSave up to €12,100 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
€18,150 EUR