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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6561273899

Certificate GIA 6561273899

Diamond specifications and retailer prices

From £12,217 GBP
$16,370 USD
As of October 25, 2026
Save £7,159 GBP (37%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £19,377 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561273899. Listed at 15 retailers as of October 25, 2026, with prices from £12,217 to £19,377, a £7,159 spread on the same certified stone. MOH London lists it at £19,377. 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

2.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6561273899
Dimensions8.59 × 8.63 × 5.44 mm
L/W Ratio1.00
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
8.59 mm8.63 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561273899
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

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 25
Current: £19,377 GBP|Low: £12,217 GBP|High: £19,506 GBP|Avg: £15,049 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£12,217 GBP
Retailer 6£12,740 GBP
Retailer 10£13,055 GBP
Retailer 9£13,622 GBP
Retailer 8£14,303 GBP
Retailer 5£14,447 GBP
Retailer 11£14,757 GBP
Retailer 2£15,224 GBP
Retailer 3£15,325 GBP
Retailer 4£15,948 GBP
Retailer 12£17,483 GBP
MOH London£19,377 GBP

35 data points across 12 retailers

15 retailers£12,217 GBP to £19,377 GBP

A
Cheapest Retailer
-
£12,217 GBP
$16,370 USD
A
Retailer 2
-
£12,339 GBP
$16,533 USD
View
A
Retailer 3
-
£12,523 GBP
$16,779 USD
View
A
Retailer 4
-
£12,740 GBP
View
A
Retailer 5
-
£13,055 GBP
$17,492 USD
View
Final sale: no returns
B+
Retailer 6
-
£13,622 GBP
$18,252 USD
View
B+
Retailer 7
-
£14,303 GBP
$19,165 USD
View
B+
Retailer 8
-
£14,447 GBP
€18,435 EUR
View
B+
Retailer 9
-
£14,757 GBP
$19,773 USD
View
B+
Retailer 10
-
£15,141 GBP
$20,287 USD
View
B+
Retailer 11
-
£15,224 GBP
View
B+
Retailer 12
-
£15,325 GBP
$20,534 USD
View
B+
Retailer 13
-
£15,948 GBP
$21,368 USD
View
B
Retailer 14
-
£17,483 GBP
$23,425 USD
View
Most Expensive
B
MOH London
F455A4935 · Oct 29
£19,377 GBP
View
14 more retailers have this diamond
Prices start from £12,217 GBPSave up to £7,159 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
2.50ct Round
£12,217 GBP