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Heart|Natural|GIA

1.57ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 7382303900

Shape and cutting style on the report: Heart modified brilliant

Certificate GIA 7382303900

Diamond specifications and retailer prices

From $6,817 AUD
As of November 6, 2026
Save $8,345 AUD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $15,162 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.57ct natural heart diamond

This 1.57ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7382303900. Listed at 21 retailers as of November 5, 2026, with prices from $6,817 to $15,162, a $8,345 spread on the same certified stone. NZ Jewellers lists it at $15,162. 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

1.57
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7382303900
Dimensions8.54 × 6.99 × 3.75 mm
L/W Ratio1.22
Top View
8.54 mm6.99 mm1.57 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7382303900
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 53.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $15,162 AUD|Low: $6,743 AUD|High: $15,162 AUD|Avg: $9,672 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$6,817 AUD
Retailer 3$8,367 AUD
Retailer 2$8,495 AUD
Retailer 7$8,610 AUD
Retailer 4$9,007 AUD
Retailer 9$9,066 AUD
Retailer 10$9,066 AUD
Retailer 5$9,325 AUD
Retailer 12$10,460 AUD
Retailer 6$11,060 AUD
Retailer 8$13,318 AUD
NZ Jewellers$15,162 AUD

40 data points across 12 retailers

21 retailers$6,817 AUD to $15,162 AUD

B+
Cheapest Retailer
-
$6,817 AUD
B+
Retailer 2
-
$7,225 AUD
View
Retailer 3
-
$7,766 AUD
View
Price last confirmed 22 days ago
B+
Retailer 4
-
$7,906 AUD
View
Retailer 5
-
$7,907 AUD
View
Price last confirmed 82 days ago
B+
Retailer 6
-
$8,367 AUD
View
Final sale: no returns
B+
Retailer 7
-
$8,434 AUD
View
B+
Retailer 8
-
$8,473 AUD
View
B+
Retailer 9
-
$8,495 AUD
View
B+
Retailer 10
-
$8,610 AUD
View
Retailer 11
-
$9,007 AUD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$9,066 AUD
View
B
Retailer 13
-
$9,066 AUD
View
B
Retailer 14
-
$9,186 AUD
View
B
Retailer 15
-
$9,293 AUD
View
B
Retailer 16
-
$9,325 AUD
View
B
Retailer 17
-
$10,365 AUD
View
B
Retailer 18
-
$10,460 AUD
View
B
Retailer 19
-
$11,060 AUD
View
B
Retailer 20
-
$13,318 AUD
View
Most Expensive
C
NZ Jewellers
aefe719c-cf07-4f1e-86a9-46fe778d2df9 · Nov 5
$15,162 AUD
$10,418 USD
View
20 more retailers have this diamond
Prices start from $6,817 AUDSave up to $8,345 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.

B+
1.57ct Heart
$6,817 AUD