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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 $1,397 NZD
$786 USD
As of November 2, 2026
Save $1,463 NZD (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,896 NZD at NZ Jewellers · As of October 30, 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: $1,397 NZD|Low: $1,397 NZD|High: $2,894 NZD|Avg: $1,919 NZD|-10.2%
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 2, 2026
Retailer 1$1,397 NZD
Retailer 11$1,440 NZD
Retailer 4$1,562 NZD
Retailer 9$1,580 NZD
Retailer 2$1,621 NZD
Retailer 5$1,825 NZD
Retailer 10$1,848 NZD
Retailer 8$1,906 NZD
Retailer 3$1,993 NZD
Retailer 7$2,332 NZD
Retailer 12$2,348 NZD
Retailer 6$2,860 NZD

41 data points across 12 retailers

17 retailers$1,397 NZD to $2,860 NZD

A
Cheapest Retailer
-
$1,397 NZD
$786 USD
B+
Retailer 2
-
$1,440 NZD
$810 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,562 NZD
$879 USD
View
B+
Retailer 4
-
$1,562 NZD
$879 USD
View
B+
Retailer 5
-
$1,580 NZD
$889 USD
View
B+
Retailer 6
-
$1,618 NZD
SGD 1,230 SGD
View
B+
Retailer 7
-
$1,621 NZD
$912 USD
View
B+
Retailer 8
-
$1,798 NZD
$1,012 USD
View
B+
Retailer 9
-
$1,802 NZD
$1,014 USD
View
B+
Retailer 10
-
$1,825 NZD
£808 GBP
View
B
Retailer 11
-
$1,848 NZD
$1,040 USD
View
B+
Retailer 12
-
$1,906 NZD
£844 GBP
View
B
Retailer 13
-
$2,071 NZD
$1,165 USD
View
B
Retailer 14
-
$2,332 NZD
ZAR 21,198 ZAR
View
Retailer 15
-
$2,348 NZD
A$2,033 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$2,860 NZD
£1,267 GBP
View
Most Expensive
NZ Jewellers
b407a76a-f82c-4309-94c3-356c85f46276 · Oct 30
$4,896 NZD
$2,755 USD
View
Price under review
16 more retailers have this diamond
Prices start from $1,397 NZDSave up to $1,463 NZD

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
$1,397 NZD