Round|Natural|GIA

0.73ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1558976418

Certificate GIA 1558976418

Diamond specifications and retailer prices

From £825 GBP
As of November 6, 2026
Save £829 GBP (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,064 GBP at NZ Jewellers · As of October 20, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558976418. Listed at 19 retailers as of November 2, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.73
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1558976418
Dimensions5.74 × 5.71 × 3.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.74 mm5.71 mm0.73 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558976418
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £2,064 GBP|Low: £622 GBP|High: £2,109 GBP|Avg: £1,017 GBP|-2.2%
NZ Jewellers
Retailer 2
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Retailer 25
November 6, 2026
Retailer 16£622 GBP
Retailer 18£725 GBP
Retailer 3£775 GBP
Retailer 7£781 GBP
Retailer 15£805 GBP
Retailer 24£825 GBP
Retailer 17£833 GBP
Retailer 10£837 GBP
Retailer 11£867 GBP
Retailer 4£945 GBP
Retailer 9£953 GBP
Retailer 5£954 GBP
Retailer 12£981 GBP
Retailer 19£994 GBP
Retailer 21£994 GBP
Retailer 2£1,024 GBP
Retailer 20£1,031 GBP
Retailer 25£1,031 GBP
Retailer 6£1,072 GBP
Retailer 13£1,172 GBP
Retailer 8£1,252 GBP
Retailer 14£1,267 GBP
Retailer 22£1,484 GBP
Retailer 23£1,654 GBP
NZ Jewellers£2,064 GBP

24 data points across 25 retailers

19 retailers£825 GBP to £1,654 GBP

Retailer 1
-
£622 GBP
Price last confirmed 17 days ago
Retailer 2
-
£725 GBP
View
Price last confirmed 30 days ago
Retailer 3
-
£775 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
£805 GBP
View
Price last confirmed 22 days ago
B+
Retailer 5
-
£825 GBP
View
Retailer 6
-
£837 GBP
View
Price last confirmed 17 days ago
Retailer 7
-
£867 GBP
View
Price last confirmed 16 days ago
B+
Retailer 8
-
£994 GBP
View
B+
Retailer 9
-
£994 GBP
View
B
Retailer 10
-
£1,024 GBP
View
B+
Retailer 11
-
£1,031 GBP
View
B+
Retailer 12
-
£1,031 GBP
View
Retailer 13
-
£1,140 GBP
View
Price last confirmed 33 days ago
B
Retailer 14
-
£1,172 GBP
View
Retailer 15
-
£1,252 GBP
View
Price last confirmed 18 days ago
Retailer 16
-
£1,267 GBP
View
Price last confirmed 20 days ago
B
Retailer 17
-
£1,484 GBP
View
B
Retailer 18
-
£1,654 GBP
View
Most Expensive
NZ Jewellers
68b2b340-1dcd-4958-8fcd-af06d410a0c6 · Oct 20
£2,064 GBP
$2,762 USD
View
Price last confirmed 17 days ago
18 more retailers have this diamond
Prices start from £825 GBPSave up to £829 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
£825 GBP