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Radiant|Natural|GIA

2.51ct G SI2 Radiant Natural Diamond

GD • G/SI2 • GIA 6562628874

Certificate GIA 6562628874

Diamond specifications and retailer prices

From £13,784 GBP
$18,497 USD
As of November 2, 2026
Save £2,397 GBP (15%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £16,181 GBP at Aurelinne · As of October 31, 2026
View at Aurelinne

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6562628874. Listed at 4 retailers as of October 31, 2026, with prices from £13,784 to £16,181, a £2,397 spread on the same certified stone. Aurelinne lists it at £16,181. 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

2.51
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562628874
Dimensions8.86 × 6.81 × 4.74 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
8.86 mm6.81 mm2.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562628874
Side View
Table 67.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 69.6%

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: Nov 2
Current: £16,181 GBP|Low: £13,784 GBP|High: £16,181 GBP|Avg: £15,305 GBP
Aurelinne
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3£13,784 GBP
Retailer 2£15,582 GBP
Retailer 4£15,810 GBP
Aurelinne£16,181 GBP

2 data points across 4 retailers

4 retailers£13,784 GBP to £16,181 GBP

A
Cheapest Retailer
-
£13,784 GBP
$18,497 USD
Final sale: no returns
B+
Retailer 2
-
£15,582 GBP
$20,910 USD
View
B+
Retailer 3
-
£15,810 GBP
€20,206 EUR
View
Most Expensive
B+
Aurelinne
061cc8e0-be5c-4ae1-a0e9-9cb70e915ed1 · Oct 31
£16,181 GBP
$21,714 USD
View
3 more retailers have this diamond
Prices start from £13,784 GBPSave up to £2,397 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 Radiant
£13,784 GBP