Round|Natural|IGI

0.73ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 810628821

Shape and cutting style on the report: Round brilliant

Certificate IGI 810628821

Diamond specifications and retailer prices

From £481 GBP
As of October 30, 2026
Save £57 GBP (11%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,184 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 810628821. Listed at 9 retailers as of October 30, 2026, with a relatively tight 12% 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

0.73
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41.9°
OriginNatural
Grading LabIGI
CertificateIGI 810628821
Dimensions5.63 × 5.65 × 3.66 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
5.63 mm5.65 mm0.73 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 810628821
Side View
Table 56.0%Crown 34.5°Girdle: STK-THKPavilion 41.9°Culet: NoneDepth 64.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £1,184 GBP|Low: £377 GBP|High: £1,184 GBP|Avg: £615 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7£377 GBP
Retailer 4£406 GBP
Retailer 2£477 GBP
Retailer 8£481 GBP
Retailer 6£538 GBP
Retailer 9£568 GBP
Retailer 5£568 GBP
Retailer 3£876 GBP
NZ Jewellers£1,184 GBP

24 data points across 9 retailers

9 retailers£481 GBP to £538 GBP

Retailer 1
-
£377 GBP
Price last confirmed 9 days ago
Retailer 2
-
£406 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£477 GBP
View
Price last confirmed 7 days ago
B+
Retailer 4
-
£481 GBP
View
B+
Retailer 5
-
£538 GBP
View
Retailer 6
-
£568 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
£568 GBP
View
Price last confirmed 6 days ago
Retailer 8
-
£876 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
e317764a-3d91-4c95-a938-35e035f7aee2 · Oct 30
£1,184 GBP
$1,593 USD
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from £481 GBPSave up to £57 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
£481 GBP