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Round|Natural|IGI

0.73ct J I1 Round Natural Diamond

VG • J/I1 • IGI 257742913

Shape and cutting style on the report: Round brilliant

Certificate IGI 257742913

Diamond specifications and retailer prices

From £378 GBP
$506 USD
As of October 31, 2026
Save £808 GBP (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,185 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.73ct natural round diamond

This 0.73ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 257742913. Listed at 8 retailers as of October 30, 2026, with prices from £378 to £1,185, a £808 spread on the same certified stone. NZ Jewellers lists it at £1,185. 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

0.73
Carat
J
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
Crown angle33.1°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 257742913
Dimensions5.83 × 5.86 × 3.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.83 mm5.86 mm0.73 ctJ / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
CertificateIGI 257742913
Side View
Table 60.0%Crown 33.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 58.9%

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: Oct 31
Current: £563 GBP|Low: £416 GBP|High: £566 GBP|Avg: £517 GBP|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2£420 GBP
Retailer 3£545 GBP
Retailer 4£549 GBP
Retailer 1£563 GBP

18 data points across 4 retailers

8 retailers£378 GBP to £1,185 GBP

B+
Cheapest Retailer
-
£378 GBP
$506 USD
B+
Retailer 2
-
£407 GBP
$545 USD
View
B+
Retailer 3
-
£407 GBP
$545 USD
View
B+
Retailer 4
-
£436 GBP
$584 USD
View
B
Retailer 5
-
£529 GBP
$709 USD
View
B
Retailer 6
-
£545 GBP
$730 USD
View
B
Retailer 7
-
£563 GBP
€719 EUR
View
Most Expensive
C
NZ Jewellers
9e38c30c-ac6e-448d-ab09-c40f8276fe71 · Oct 30
£1,185 GBP
$1,588 USD
View
7 more retailers have this diamond
Prices start from £378 GBPSave up to £808 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.

B+
0.73ct Round
£378 GBP