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Heart|Natural|GIA

0.73ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1518428055

Certificate GIA 1518428055

Diamond specifications and retailer prices

From £586 GBP
$786 USD
As of November 2, 2026
Save £613 GBP (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,053 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.73ct natural heart diamond

This 0.73ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518428055. Listed at 17 retailers as of November 1, 2026, with a 105% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1518428055
Dimensions5.42 × 6.43 × 3.76 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
5.42 mm6.43 mm0.73 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1518428055
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.4%

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: Nov 2
Current: £765 GBP|Low: £586 GBP|High: £1,213 GBP|Avg: £804 GBP|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 5£586 GBP
Retailer 11£604 GBP
Retailer 4£655 GBP
Retailer 9£662 GBP
Retailer 2£680 GBP
Retailer 1£765 GBP
Retailer 10£775 GBP
Retailer 8£799 GBP
Retailer 3£835 GBP
Retailer 7£978 GBP
Retailer 12£985 GBP
Retailer 6£1,199 GBP

42 data points across 12 retailers

17 retailers£586 GBP to £1,199 GBP

A
Cheapest Retailer
-
£586 GBP
$786 USD
B+
Retailer 2
-
£604 GBP
$810 USD
View
Final sale: no returns
B+
Retailer 3
-
£655 GBP
$879 USD
View
B+
Retailer 4
-
£655 GBP
$879 USD
View
B+
Retailer 5
-
£662 GBP
$889 USD
View
B+
Retailer 6
-
£678 GBP
SGD 1,230 SGD
View
B+
Retailer 7
-
£680 GBP
$912 USD
View
B+
Retailer 8
-
£754 GBP
$1,012 USD
View
B+
Retailer 9
-
£756 GBP
$1,014 USD
View
B+
Retailer 10
-
£765 GBP
View
B
Retailer 11
-
£775 GBP
$1,040 USD
View
B+
Retailer 12
-
£799 GBP
View
B
Retailer 13
-
£868 GBP
$1,165 USD
View
B
Retailer 14
-
£978 GBP
ZAR 21,198 ZAR
View
Retailer 15
-
£985 GBP
A$2,033 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
£1,199 GBP
View
Most Expensive
NZ Jewellers
b407a76a-f82c-4309-94c3-356c85f46276 · Nov 3
£2,053 GBP
$2,755 USD
View
Price under review
16 more retailers have this diamond
Prices start from £586 GBPSave up to £613 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 Heart
£586 GBP