CaratHunter
Plans
Radiant|Natural|GIA

5.21ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 6552448077

Certificate GIA 6552448077

Diamond specifications and retailer prices

From €108,603 EUR
A$187,399 AUD
As of November 2, 2026
Save €2,911 EUR (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €111,513 EUR at William & Sons Jewelers · As of November 2, 2026
View at William & Sons Jewelers

About this 5.21ct natural radiant diamond

This 5.21ct natural radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552448077. Listed at 2 retailers as of November 2, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

5.21
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.9°
Pavilion angle54.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552448077
Dimensions11.55 × 9.02 × 6.16 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
11.55 mm9.02 mm5.21 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552448077
Side View
Table 69.0%Crown 47.9°Girdle: THK-VTKPavilion 54.2°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €85,427 EUR|Low: €80,464 EUR|High: €111,513 EUR|Avg: €87,666 EUR|-0.2%
Retailer 1
Retailer 2
William & Sons Jewelers
October 5, 2026
Retailer 2€80,464 EUR
Retailer 1€85,427 EUR
William & Sons Jewelers€111,513 EUR

4 data points across 3 retailers

2 retailers€108,603 EUR to €111,513 EUR

B+
Cheapest Retailer
-
€108,603 EUR
A$187,399 AUD
Most Expensive
B
William & Sons Jewelers
cert_6552448077 · Nov 2
€111,513 EUR
$125,074 USD
View
Final sale: no returns
1 more retailer has this diamond
Prices start from €108,603 EURSave up to €2,911 EUR

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+
5.21ct Radiant
€108,603 EUR