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Heart|Natural|GIA

1.73ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 1553154890

Certificate GIA 1553154890

Diamond specifications and retailer prices

From $6,724 AUD
$4,712 USD
As of November 1, 2026
Save $6,331 AUD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $16,088 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.73ct natural heart diamond

This 1.73ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553154890. Listed at 17 retailers as of November 1, 2026, with a 94% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.73
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553154890
Dimensions7.08 × 8.30 × 4.86 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
7.08 mm8.30 mm1.73 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553154890
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

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 1
Current: $7,465 AUD|Low: $6,641 AUD|High: $14,731 AUD|Avg: $8,967 AUD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 2$6,724 AUD
Retailer 11$6,758 AUD
Retailer 15$7,125 AUD
Retailer 13$7,408 AUD
Retailer 1$7,465 AUD
Retailer 4$7,555 AUD
Retailer 5$7,624 AUD
Retailer 9$8,119 AUD
Retailer 10$8,496 AUD
Retailer 14$8,500 AUD
Retailer 7$9,100 AUD
Retailer 12$10,659 AUD
Retailer 3$10,744 AUD
Retailer 8$13,055 AUD
Retailer 6$14,142 AUD

26 data points across 15 retailers

17 retailers$6,724 AUD to $13,055 AUD

A
Cheapest Retailer
-
$6,724 AUD
$4,712 USD
A
Retailer 2
-
$6,758 AUD
HK$37,000 HKD
View
A
Retailer 3
-
$7,125 AUD
$4,993 USD
View
B+
Retailer 4
-
$7,408 AUD
$5,192 USD
View
Final sale: no returns
B+
Retailer 5
-
$7,465 AUD
€4,983 EUR
View
B+
Retailer 6
-
$7,555 AUD
$5,295 USD
View
B+
Retailer 7
-
$7,624 AUD
$5,343 USD
View
B+
Retailer 8
-
$8,119 AUD
$5,690 USD
View
B+
Retailer 9
-
$8,496 AUD
$5,954 USD
View
B+
Retailer 10
-
$8,500 AUD
£4,691 GBP
View
Retailer 11
-
$9,100 AUD
View
Price last confirmed 24 days ago
B
Retailer 12
-
$9,774 AUD
View
B+
Retailer 13
-
$10,659 AUD
$7,470 USD
View
B+
Retailer 14
-
$10,744 AUD
ZAR 121,645 ZAR
View
B
Retailer 15
-
$13,055 AUD
£7,204 GBP
View
Retailer 16
-
$14,142 AUD
$9,911 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
e9b70d29-f4e5-46f4-9fa0-7b0376c77384 · Sep 25
$16,088 AUD
$11,275 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from $6,724 AUDSave up to $6,331 AUD

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
1.73ct Heart
$6,724 AUD