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Heart|Natural|GIA

1.00ct E SI2 Heart Natural Diamond

VG • E/SI2 • GIA 6551320641

Certificate GIA 6551320641

Diamond specifications and retailer prices

From $2,515 AUD
As of November 5, 2026
Save $4,417 AUD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,110 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551320641. Listed at 16 retailers as of November 5, 2026, with a 176% 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

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.3°
Pavilion angle42.5°
OriginNatural
Grading LabGIA
CertificateGIA 6551320641
Dimensions6.93 × 5.94 × 4.28 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
6.93 mm5.94 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551320641
Side View
Table 60.0%Crown 37.3°Girdle: MED-THKPavilion 42.5°Culet: NoneDepth 61.8%

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 5
Current: $6,932 AUD|Low: $2,404 AUD|High: $7,110 AUD|Avg: $3,321 AUD|-2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$2,515 AUD
Retailer 12$2,567 AUD
Retailer 10$2,623 AUD
Retailer 2$2,681 AUD
Retailer 5$2,800 AUD
Retailer 4$2,842 AUD
Retailer 11$2,842 AUD
Retailer 9$2,973 AUD
Retailer 3$3,042 AUD
Retailer 6$3,085 AUD
Retailer 13$3,279 AUD
Retailer 8$4,979 AUD
NZ Jewellers$6,932 AUD

43 data points across 13 retailers

16 retailers$2,515 AUD to $6,932 AUD

A
Cheapest Retailer
-
$2,515 AUD
A
Retailer 2
-
$2,567 AUD
View
A
Retailer 3
-
$2,623 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,681 AUD
View
A
Retailer 5
-
$2,842 AUD
View
Retailer 6
-
$2,842 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$2,915 AUD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$2,973 AUD
View
B+
Retailer 9
-
$3,042 AUD
View
B+
Retailer 10
-
$3,085 AUD
View
B+
Retailer 11
-
$3,279 AUD
View
Retailer 12
-
$3,363 AUD
View
Price last confirmed 61 days ago
Retailer 13
-
$3,363 AUD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$4,979 AUD
View
B
Retailer 15
-
$6,932 AUD
View
Most Expensive
NZ Jewellers
fde212ad-3874-4797-9122-305b00e65026 · Sep 28
$7,110 AUD
$4,885 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $2,515 AUDSave up to $4,417 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
1.00ct Heart
$2,515 AUD