Radiant|Natural|GIA

5.09ct I SI1 Radiant Natural Diamond

I/SI1

Diamond specifications and retailer prices

From €82,090 EUR
$91,712 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: €82,090 EUR at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 5.09ct natural radiant diamond

This 5.09ct natural radiant sits in the over five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

5.09
Carat
I
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions11.96 × 8.38 × 5.81 mm
L/W Ratio1.43
Top View
11.96 mm8.38 mm5.09 ctI / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €84,149 EUR|Low: €80,368 EUR|High: €92,088 EUR|Avg: €85,656 EUR|-3.7%
Retailer 1
Retailer 2
The Diamond Guys
October 29, 2026
The Diamond Guys€82,090 EUR
Retailer 1€84,149 EUR
Retailer 2€92,088 EUR

31 data points across 3 retailers

1 retailer

B
The Diamond Guys
1842032331 · Nov 1
€82,090 EUR
$91,712 USD
View

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
5.09ct Radiant
€82,090 EUR