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Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6545375595

Certificate GIA 6545375595

Diamond specifications and retailer prices

From $1,751 AUD
As of November 6, 2026
Save $2,412 AUD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,321 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545375595. Listed at 20 retailers as of November 2, 2026, with a 138% 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

1.01
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 6545375595
Dimensions6.28 × 7.08 × 3.95 mm
L/W Ratio1.13
Top View
6.28 mm7.08 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545375595
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 39.9°Culet: NoneDepth 55.7%

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 6
Current: $1,867 AUD|Low: $1,751 AUD|High: $4,339 AUD|Avg: $2,562 AUD|-8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 12$1,751 AUD
Retailer 1$1,867 AUD
Retailer 13$2,061 AUD
Retailer 4$2,065 AUD
Retailer 8$2,067 AUD
Retailer 6$2,096 AUD
Retailer 10$2,110 AUD
Retailer 3$2,179 AUD
Retailer 7$2,324 AUD
Retailer 11$2,447 AUD
Retailer 14$2,465 AUD
Retailer 15$2,879 AUD
Retailer 2$2,899 AUD
Retailer 9$3,570 AUD
Retailer 5$4,162 AUD

24 data points across 15 retailers

20 retailers$1,751 AUD to $4,162 AUD

A
Cheapest Retailer
-
$1,751 AUD
A
Retailer 2
-
$1,867 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,061 AUD
View
A
Retailer 4
-
$2,065 AUD
View
A
Retailer 5
-
$2,067 AUD
View
A
Retailer 6
-
$2,096 AUD
View
A
Retailer 7
-
$2,110 AUD
View
A
Retailer 8
-
$2,179 AUD
View
A
Retailer 9
-
$2,324 AUD
View
A
Retailer 10
-
$2,447 AUD
View
A
Retailer 11
-
$2,465 AUD
View
Retailer 12
-
$2,643 AUD
View
Price last confirmed 17 days ago
Retailer 13
-
$2,839 AUD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
$2,879 AUD
View
B+
Retailer 15
-
$2,899 AUD
View
B+
Retailer 16
-
$2,921 AUD
View
Retailer 17
-
$3,264 AUD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
$3,570 AUD
View
B
Retailer 19
-
$4,162 AUD
View
Most Expensive
NZ Jewellers
c4d5302c-22d0-40c6-96c6-d9cefc8b3055 · Sep 25
$6,321 AUD
$4,343 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from $1,751 AUDSave up to $2,412 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
1.01ct Heart
$1,751 AUD