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Round|Natural|IGI

1.58ct J IF Round Natural Diamond

EX • J/IF • IGI 499129931

Shape and cutting style on the report: Round brilliant

Certificate IGI 499129931

Diamond specifications and retailer prices

From £2,949 GBP
₹376,319 INR
As of October 31, 2026
Save £8,179 GBP (73%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £11,128 GBP at William & Sons Jewelers · As of October 31, 2026
View at William & Sons Jewelers

About this 1.58ct natural round diamond

This 1.58ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 499129931. Listed at 7 retailers as of October 31, 2026, with prices from £2,949 to £11,128, a £8,179 spread on the same certified stone. William & Sons Jewelers lists it at £11,128. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41.9°
OriginNatural
Grading LabIGI
CertificateIGI 499129931
Dimensions7.43 × 7.49 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.43 mm7.49 mm1.58 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 499129931
Side View
Table 60.0%Crown 33°Girdle: MediumPavilion 41.9°Culet: NoneDepth 61.9%

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: Oct 31
Current: £2,949 GBP|Low: £2,941 GBP|High: £11,128 GBP|Avg: £3,981 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
William & Sons Jewelers
October 31, 2026
Retailer 1£2,949 GBP
Retailer 5£3,291 GBP
Retailer 3£4,166 GBP
Retailer 2£4,353 GBP
Retailer 4£4,735 GBP
William & Sons Jewelers£11,128 GBP

42 data points across 6 retailers

7 retailers£2,949 GBP to £11,128 GBP

A
Cheapest Retailer
-
£2,949 GBP
₹376,319 INR
A
Retailer 2
-
£3,291 GBP
$4,410 USD
View
A
Retailer 3
-
£3,859 GBP
$5,170 USD
View
A
Retailer 4
-
£4,166 GBP
€5,316 EUR
View
A
Retailer 5
-
£4,353 GBP
View
A
Retailer 6
-
£4,735 GBP
ZAR 102,501 ZAR
View
Most Expensive
B
William & Sons Jewelers
cert_499129931 · Oct 31
£11,128 GBP
$14,910 USD
View
Final sale: no returns
6 more retailers have this diamond
Prices start from £2,949 GBPSave up to £8,179 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
1.58ct Round
£2,949 GBP