Round|Natural|GIA

0.73ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7438938908

Certificate GIA 7438938908

Diamond specifications and retailer prices

From £528 GBP
As of November 4, 2026
Save £599 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,970 GBP at NZ Jewellers · As of September 28, 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 top-tier cut grade and certified by GIA 7438938908. Listed at 15 retailers as of November 2, 2026, with a 113% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7438938908
Dimensions5.75 × 5.73 × 3.62 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.75 mm5.73 mm0.73 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7438938908
Side View
Table 57.0%Crown 36°Girdle: Sli. ThickPavilion 41.4°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £730 GBP|Low: £528 GBP|High: £1,164 GBP|Avg: £761 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2£528 GBP
Retailer 7£609 GBP
Retailer 8£624 GBP
Retailer 10£666 GBP
Retailer 9£720 GBP
Retailer 1£730 GBP
Retailer 6£739 GBP
Retailer 3£865 GBP
Retailer 4£919 GBP
Retailer 5£1,127 GBP

43 data points across 10 retailers

15 retailers£528 GBP to £1,127 GBP

A
Cheapest Retailer
-
£528 GBP
B+
Retailer 2
-
£609 GBP
View
B+
Retailer 3
-
£624 GBP
View
Retailer 4
-
£629 GBP
View
Price last confirmed 28 days ago
Retailer 5
-
£629 GBP
View
Price last confirmed 26 days ago
Retailer 6
-
£652 GBP
View
Price last confirmed 38 days ago
B+
Retailer 7
-
£666 GBP
View
B+
Retailer 8
-
£720 GBP
View
Retailer 9
-
£725 GBP
View
Price last confirmed 28 days ago
B+
Retailer 10
-
£730 GBP
View
B+
Retailer 11
-
£739 GBP
View
B+
Retailer 12
-
£865 GBP
View
B
Retailer 13
-
£919 GBP
View
B
Retailer 14
-
£1,127 GBP
View
Most Expensive
NZ Jewellers
dbe4e914-1a29-4c1a-92ad-5259d4639b15 · Sep 28
£1,970 GBP
$2,652 USD
View
Price last confirmed 39 days ago
14 more retailers have this diamond
Prices start from £528 GBPSave up to £599 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
0.73ct Round
£528 GBP