CaratHunter
Plans
Round|Natural|HRD

4.20ct I IF Round Natural Diamond

EX • I/IF • HRD 798620748

Shape and cutting style on the report: Round brilliant

Certificate HRD 798620748

Diamond specifications and retailer prices

From £30,163 GBP
As of November 1, 2026
Save £1,039 GBP (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £31,203 GBP at B2C Jewels · As of November 4, 2026
View at B2C Jewels

About this 4.2ct natural round diamond

This 4.2ct natural round sits in the three to five carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by HRD 798620748. Listed at 2 retailers as of November 1, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

4.20
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.9°
OriginNatural
Grading LabHRD
CertificateHRD 798620748
Dimensions10.21 × 10.27 × 6.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
10.21 mm10.27 mm4.20 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateHRD 798620748
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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 1
Current: £31,203 GBP|Low: £30,163 GBP|High: £32,269 GBP|Avg: £31,482 GBP|-3.3%
B2C Jewels
Retailer 2
October 28, 2026
Retailer 2£30,163 GBP
B2C Jewels£31,203 GBP

6 data points across 2 retailers

2 retailers£30,163 GBP to £31,203 GBP

A
Cheapest Retailer
-
£30,163 GBP
Most Expensive
A
B2C Jewels
34436750 · Nov 4
£31,203 GBP
$42,123 USD
View
1 more retailer has this diamond
Prices start from £30,163 GBPSave up to £1,039 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
4.20ct Round
£30,163 GBP