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Radiant|Natural|GIA

2.50ct G SI2 Radiant Natural Diamond

EX • G/SI2

Diamond specifications and retailer prices

From £16,699 GBP
CA$31,076 CAD
As of October 30, 2026
Save £4,009 GBP (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £20,708 GBP at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 2.5ct natural radiant diamond

This 2.5ct natural radiant sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 30, 2026, with prices from £16,699 to £20,708, a £4,009 spread on the same certified stone. The Diamond Guys lists it at £20,708. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions9.86 × 6.79 × 4.47 mm
L/W Ratio1.45
Top View
9.86 mm6.79 mm2.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 66.0%CrownGirdle: ThickPavilionCuletDepth 65.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £20,615 GBP|Low: £16,699 GBP|High: £20,708 GBP|Avg: £19,299 GBP|+1.2%
Retailer 1
Retailer 2
The Diamond Guys
October 16, 2026
Retailer 2£16,699 GBP
Retailer 1£20,615 GBP
The Diamond Guys£20,708 GBP

7 data points across 3 retailers

3 retailers£16,699 GBP to £20,708 GBP

B+
Cheapest Retailer
-
£16,699 GBP
CA$31,076 CAD
Retailer 2
-
£20,615 GBP
View
Price last confirmed 15 days ago
Most Expensive
B
The Diamond Guys
1971184899 · Oct 31
£20,708 GBP
$27,746 USD
View
2 more retailers have this diamond
Prices start from £16,699 GBPSave up to £4,009 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
£16,699 GBP