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Heart|Natural|GIA

1.01ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 2558316220

Certificate GIA 2558316220

Diamond specifications and retailer prices

From $1,963 AUD
$1,376 USD
As of November 1, 2026
Save $2,375 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,949 AUD at NZ Jewellers · As of October 21, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558316220. Listed at 13 retailers as of October 29, 2026, with a 121% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2558316220
Dimensions6.19 × 6.87 × 4.09 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.19 mm6.87 mm1.01 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558316220
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.6%

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: $5,949 AUD|Low: $1,699 AUD|High: $5,949 AUD|Avg: $2,820 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 3$1,963 AUD
Retailer 16$2,040 AUD
Retailer 4$2,210 AUD
Retailer 15$2,210 AUD
Retailer 5$2,227 AUD
Retailer 6$2,297 AUD
Retailer 2$2,435 AUD
Retailer 7$2,451 AUD
Retailer 14$2,550 AUD
Retailer 8$2,620 AUD
Retailer 11$2,625 AUD
Retailer 12$2,625 AUD
Retailer 13$2,725 AUD
Retailer 9$3,362 AUD
Retailer 10$4,338 AUD
NZ Jewellers$5,949 AUD

35 data points across 16 retailers

13 retailers$1,963 AUD to $4,338 AUD

A
Cheapest Retailer
-
$1,963 AUD
$1,376 USD
Retailer 2
-
$2,210 AUD
$1,549 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$2,227 AUD
$1,561 USD
View
A
Retailer 4
-
$2,297 AUD
$1,610 USD
View
Retailer 5
-
$2,312 AUD
$1,620 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$2,435 AUD
£1,344 GBP
View
Retailer 7
-
$2,550 AUD
$1,787 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$2,625 AUD
$1,840 USD
View
B+
Retailer 9
-
$2,625 AUD
$1,840 USD
View
B+
Retailer 10
-
$2,725 AUD
$1,910 USD
View
B
Retailer 11
-
$3,362 AUD
€2,244 EUR
View
B
Retailer 12
-
$4,338 AUD
£2,394 GBP
View
Most Expensive
NZ Jewellers
453bf252-3c41-4c5e-9c5a-0c6a81eb154b · Oct 21
$5,949 AUD
$4,169 USD
View
Price last confirmed 12 days ago
12 more retailers have this diamond
Prices start from $1,963 AUDSave up to $2,375 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
$1,963 AUD