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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6532898193

Certificate GIA 6532898193

Diamond specifications and retailer prices

From £12,903 GBP
$17,288 USD
As of October 29, 2026
Save £6,090 GBP (32%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £18,993 GBP 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6532898193. Listed at 10 retailers as of October 29, 2026, with prices from £12,903 to £18,993, a £6,090 spread on the same certified stone. MOH London lists it at £18,993. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6532898193
Dimensions8.66 × 8.61 × 5.41 mm
L/W Ratio1.01
Top View
8.66 mm8.61 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532898193
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: Oct 29
Current: £18,993 GBP|Low: £10,548 GBP|High: £19,710 GBP|Avg: £14,486 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3£10,548 GBP
Retailer 8£12,903 GBP
Retailer 7£12,994 GBP
Retailer 11£13,105 GBP
Retailer 10£13,326 GBP
Retailer 2£14,501 GBP
Retailer 9£14,605 GBP
Retailer 5£14,822 GBP
Retailer 6£15,992 GBP
Retailer 4£18,196 GBP
MOH London£18,993 GBP

40 data points across 11 retailers

10 retailers£12,903 GBP to £18,993 GBP

A
Cheapest Retailer
-
£12,903 GBP
$17,288 USD
A
Retailer 2
-
£12,994 GBP
SGD 23,528 SGD
View
A
Retailer 3
-
£13,105 GBP
$17,559 USD
View
A
Retailer 4
-
£13,326 GBP
$17,856 USD
View
B+
Retailer 5
-
£14,501 GBP
$19,430 USD
View
A
Retailer 6
-
£14,605 GBP
$19,570 USD
View
B+
Retailer 7
-
£14,822 GBP
View
B+
Retailer 8
-
£15,992 GBP
€20,407 EUR
View
B
Retailer 9
-
£18,196 GBP
$24,380 USD
View
Most Expensive
B
MOH London
6E98FCC83 · Oct 29
£18,993 GBP
View
9 more retailers have this diamond
Prices start from £12,903 GBPSave up to £6,090 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
£12,903 GBP