CaratHunter
Plans
Round|Natural|GIA

2.51ct F SI2 Round Natural Diamond

VG • F/SI2 • GIA 5231884635

Certificate GIA 5231884635

Diamond specifications and retailer prices

From £15,715 GBP
$21,056 USD
As of November 1, 2026
Save £11,017 GBP (41%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £26,732 GBP at MOH London · As of November 1, 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 very-good cut grade and certified by GIA 5231884635. Listed at 17 retailers as of November 1, 2026, with prices from £15,715 to £26,732, a £11,017 spread on the same certified stone. MOH London lists it at £26,732. 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
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231884635
Dimensions8.85 × 8.98 × 5.25 mm
L/W Ratio1.01
Top View
8.85 mm8.98 mm2.51 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231884635
Side View
Table 62.0%Crown 29.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 58.9%

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: £26,732 GBP|Low: £15,826 GBP|High: £27,054 GBP|Avg: £19,709 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4£15,879 GBP
Retailer 2£17,116 GBP
Retailer 5£17,972 GBP
Retailer 3£19,958 GBP
MOH London£26,732 GBP

43 data points across 5 retailers

17 retailers£15,715 GBP to £26,732 GBP

A
Cheapest Retailer
-
£15,715 GBP
$21,056 USD
A
Retailer 2
-
£15,735 GBP
$21,083 USD
View
Retailer 3
-
£15,879 GBP
₹2,026,246 INR
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£16,099 GBP
CA$29,960 CAD
View
B+
Retailer 5
-
£17,116 GBP
View
B+
Retailer 6
-
£17,116 GBP
$22,934 USD
View
B+
Retailer 7
-
£17,416 GBP
$23,335 USD
View
B+
Retailer 8
-
£17,972 GBP
$24,081 USD
View
B+
Retailer 9
-
£18,367 GBP
$24,610 USD
View
B+
Retailer 10
-
£18,367 GBP
$24,610 USD
View
B+
Retailer 11
-
£18,543 GBP
$24,845 USD
View
B+
Retailer 12
-
£18,979 GBP
$25,430 USD
View
B+
Retailer 13
-
£19,256 GBP
$25,801 USD
View
B+
Retailer 14
-
£19,958 GBP
€25,468 EUR
View
B+
Retailer 15
-
£19,964 GBP
$26,750 USD
View
B
Retailer 16
-
£24,248 GBP
$32,490 USD
View
Most Expensive
B
MOH London
91F4BC906 · Nov 1
£26,732 GBP
View
16 more retailers have this diamond
Prices start from £15,715 GBPSave up to £11,017 GBP

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
£15,715 GBP