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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3565212622

Certificate GIA 3565212622

Diamond specifications and retailer prices

From £12,163 GBP
$16,297 USD
As of October 29, 2026
Save £9,438 GBP (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £21,601 GBP at MOH London · As of October 26, 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 3565212622. Listed at 19 retailers as of October 26, 2026, with prices from £12,163 to £21,601, a £9,438 spread on the same certified stone. MOH London lists it at £21,601. 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 angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 3565212622
Dimensions8.71 × 8.78 × 5.35 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Feather, Cloud
Top View
8.71 mm8.78 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565212622
Side View
Table 58.0%Crown 33°Girdle: STK-STKPavilion 41.2°Culet: NoneDepth 61.2%

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 29
Current: £21,601 GBP|Low: £12,163 GBP|High: £22,394 GBP|Avg: £15,596 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 6£12,163 GBP
Retailer 4£12,824 GBP
Retailer 10£13,097 GBP
Retailer 17£13,236 GBP
Retailer 11£14,255 GBP
Retailer 13£14,503 GBP
Retailer 5£14,846 GBP
Retailer 15£14,964 GBP
Retailer 8£15,315 GBP
Retailer 18£15,315 GBP
Retailer 16£15,539 GBP
Retailer 3£15,822 GBP
Retailer 9£16,241 GBP
Retailer 12£16,706 GBP
Retailer 7£16,757 GBP
Retailer 2£17,040 GBP
Retailer 14£19,568 GBP
MOH London£21,601 GBP

33 data points across 18 retailers

19 retailers£12,163 GBP to £21,601 GBP

A
Cheapest Retailer
-
£12,163 GBP
$16,297 USD
A
Retailer 2
-
£12,791 GBP
$17,139 USD
View
A
Retailer 3
-
£12,824 GBP
$17,183 USD
View
A
Retailer 4
-
£13,097 GBP
CA$24,373 CAD
View
A
Retailer 5
-
£13,236 GBP
$17,735 USD
View
Final sale: no returns
B+
Retailer 6
-
£14,255 GBP
View
B+
Retailer 7
-
£14,503 GBP
$19,433 USD
View
B+
Retailer 8
-
£14,846 GBP
$19,892 USD
View
B+
Retailer 9
-
£14,964 GBP
$20,050 USD
View
B+
Retailer 10
-
£15,315 GBP
$20,520 USD
View
B+
Retailer 11
-
£15,315 GBP
$20,520 USD
View
B+
Retailer 12
-
£15,539 GBP
$20,821 USD
View
B+
Retailer 13
-
£15,822 GBP
$21,200 USD
View
B+
Retailer 14
-
£16,241 GBP
$21,761 USD
View
B+
Retailer 15
-
£16,706 GBP
€21,318 EUR
View
B+
Retailer 16
-
£16,757 GBP
$22,452 USD
View
B+
Retailer 17
-
£17,040 GBP
View
B
Retailer 18
-
£19,568 GBP
$26,219 USD
View
Most Expensive
B
MOH London
C19B973B4 · Oct 26
£21,601 GBP
View
18 more retailers have this diamond
Prices start from £12,163 GBPSave up to £9,438 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
£12,163 GBP