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Heart|Natural|GIA

1.01ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6545398875

Certificate GIA 6545398875

Diamond specifications and retailer prices

From $2,223 AUD
HK$12,200 HKD
As of November 1, 2026
Save $3,007 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,630 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 D 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 6545398875. Listed at 19 retailers as of October 29, 2026, with a 135% 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.4°
OriginNatural
Grading LabGIA
CertificateGIA 6545398875
Dimensions5.94 × 6.90 × 4.16 mm
L/W Ratio1.16
Top View
5.94 mm6.90 mm1.01 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545398875
Side View
Table 56.0%CrownGirdle: STK-VTKPavilion 37.4°Culet: NoneDepth 60.3%

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: $2,440 AUD|Low: $2,223 AUD|High: $5,429 AUD|Avg: $3,209 AUD|-4.9%
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
Retailer 16
November 2, 2026
Retailer 12$2,223 AUD
Retailer 1$2,440 AUD
Retailer 10$2,496 AUD
Retailer 15$2,562 AUD
Retailer 3$2,580 AUD
Retailer 13$2,627 AUD
Retailer 11$2,733 AUD
Retailer 5$2,740 AUD
Retailer 4$2,925 AUD
Retailer 9$3,202 AUD
Retailer 16$3,254 AUD
Retailer 7$3,271 AUD
Retailer 14$3,649 AUD
Retailer 8$3,775 AUD
Retailer 6$4,765 AUD
Retailer 2$5,230 AUD

27 data points across 16 retailers

19 retailers$2,223 AUD to $5,230 AUD

A
Cheapest Retailer
-
$2,223 AUD
HK$12,200 HKD
A
Retailer 2
-
$2,440 AUD
$1,714 USD
View
Final sale: no returns
A
Retailer 3
-
$2,496 AUD
$1,753 USD
View
A
Retailer 4
-
$2,562 AUD
$1,800 USD
View
A
Retailer 5
-
$2,580 AUD
$1,812 USD
View
A
Retailer 6
-
$2,627 AUD
€1,758 EUR
View
A
Retailer 7
-
$2,733 AUD
$1,920 USD
View
A
Retailer 8
-
$2,740 AUD
$1,925 USD
View
A
Retailer 9
-
$2,925 AUD
$2,055 USD
View
A
Retailer 10
-
$3,202 AUD
£1,771 GBP
View
B+
Retailer 11
-
$3,254 AUD
$2,286 USD
View
Retailer 12
-
$3,254 AUD
$2,286 USD
View
Price last confirmed 11 days ago
Retailer 13
-
$3,257 AUD
$2,288 USD
View
Price last confirmed 39 days ago
A
Retailer 14
-
$3,271 AUD
SGD 3,105 SGD
View
B+
Retailer 15
-
$3,649 AUD
ZAR 41,414 ZAR
View
Retailer 16
-
$3,775 AUD
View
Price last confirmed 26 days ago
Retailer 17
-
$4,765 AUD
$3,347 USD
View
Price last confirmed 9 days ago
B
Retailer 18
-
$5,230 AUD
£2,893 GBP
View
Most Expensive
NZ Jewellers
da600e29-a316-440f-895c-530c3a04527f · Sep 25
$6,630 AUD
$4,657 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $2,223 AUDSave up to $3,007 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
$2,223 AUD