Radiant|Natural|GIA

2.50ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2225826209

Certificate GIA 2225826209

Diamond specifications and retailer prices

From £17,720 GBP
A$36,528 AUD
As of November 2, 2026
19 retailers carry this diamond
Most expensive: £25,395 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 2.5ct natural radiant diamond

This 2.5ct natural radiant sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2225826209. Listed at 19 retailers as of November 2, 2026. 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

2.50
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle46.88°
Pavilion angle58.91°
OriginNatural
Grading LabGIA
CertificateGIA 2225826209
Dimensions9.11 × 6.98 × 4.47 mm
L/W Ratio1.31
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
9.11 mm6.98 mm2.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225826209
Side View
Table 68.0%Crown 46.88°Girdle: STK-THKPavilion 58.91°Culet: NoneDepth 64.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £25,395 GBP|Low: £14,046 GBP|High: £25,565 GBP|Avg: £17,464 GBP|-0.7%
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
October 22, 2026
Retailer 8£14,046 GBP
Retailer 7£14,952 GBP
Retailer 12£15,500 GBP
Retailer 5£15,948 GBP
Retailer 4£16,174 GBP
Retailer 9£16,309 GBP
Retailer 13£16,705 GBP
Retailer 2£17,067 GBP
Retailer 6£17,285 GBP
Retailer 14£17,522 GBP
Retailer 3£17,720 GBP
Retailer 10£19,480 GBP
Retailer 11£22,051 GBP
MOH London£25,395 GBP

22 data points across 14 retailers

19 retailers

Retailer 1
-
£14,046 GBP
$18,820 USD
Price last confirmed 11 days ago
Retailer 2
-
£14,869 GBP
$19,923 USD
View
Price last confirmed 12 days ago
Retailer 3
-
£14,952 GBP
₹1,907,955 INR
View
Price last confirmed 11 days ago
Retailer 4
-
£15,104 GBP
$20,238 USD
View
Price last confirmed 11 days ago
Retailer 5
-
£15,774 GBP
$21,135 USD
View
Price last confirmed 11 days ago
Retailer 6
-
£16,174 GBP
$21,672 USD
View
Price last confirmed 17 days ago
Retailer 7
-
£16,309 GBP
$21,852 USD
View
Price last confirmed 11 days ago
Retailer 8
-
£16,705 GBP
A$34,436 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
£16,983 GBP
$22,755 USD
View
Price last confirmed 16 days ago
Retailer 10
-
£17,067 GBP
View
Price last confirmed 11 days ago
Retailer 11
-
£17,270 GBP
$23,140 USD
View
Price last confirmed 13 days ago
Retailer 12
-
£17,270 GBP
$23,140 USD
View
Price last confirmed 13 days ago
Retailer 13
-
£17,285 GBP
$23,159 USD
View
Price last confirmed 14 days ago
Retailer 14
-
£17,522 GBP
$23,478 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
£17,720 GBP
A$36,528 AUD
View
Retailer 16
-
£17,845 GBP
$23,910 USD
View
Price last confirmed 12 days ago
Retailer 17
-
£18,364 GBP
$24,605 USD
View
Price last confirmed 12 days ago
Retailer 18
-
£22,051 GBP
ZAR 477,308 ZAR
View
Price last confirmed 15 days ago
Most Expensive
MOH London
C92513734 · Oct 21
£25,395 GBP
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from £17,720 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.

B+
2.50ct Radiant
£17,720 GBP