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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 1548496903

Certificate GIA 1548496903

Diamond specifications and retailer prices

From $1,854 AUD
As of November 6, 2026
Save $2,601 AUD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,161 AUD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct 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 1548496903. Listed at 14 retailers as of November 4, 2026, with a 140% 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

1.00
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548496903
Dimensions6.90 × 6.20 × 4.05 mm
L/W Ratio1.11
Top View
6.90 mm6.20 mm1.00 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548496903
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 58.7%

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: $2,508 AUD|Low: $1,760 AUD|High: $4,491 AUD|Avg: $2,669 AUD|+0.3%
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
November 6, 2026
Retailer 14$1,854 AUD
Retailer 11$2,033 AUD
Retailer 9$2,112 AUD
Retailer 12$2,288 AUD
Retailer 13$2,372 AUD
Retailer 10$2,394 AUD
Retailer 1$2,508 AUD
Retailer 3$2,640 AUD
Retailer 4$2,722 AUD
Retailer 5$2,722 AUD
Retailer 2$2,809 AUD
Retailer 6$3,087 AUD
Retailer 7$3,464 AUD
Retailer 8$4,455 AUD

45 data points across 14 retailers

14 retailers$1,854 AUD to $4,455 AUD

A
Cheapest Retailer
-
$1,854 AUD
A
Retailer 2
-
$2,033 AUD
View
A
Retailer 3
-
$2,112 AUD
View
Final sale: no returns
Retailer 4
-
$2,288 AUD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$2,372 AUD
View
Retailer 6
-
$2,394 AUD
View
Price last confirmed 15 days ago
A
Retailer 7
-
$2,508 AUD
View
Retailer 8
-
$2,640 AUD
View
Price last confirmed 14 days ago
B+
Retailer 9
-
$2,722 AUD
View
B+
Retailer 10
-
$2,722 AUD
View
B+
Retailer 11
-
$2,809 AUD
View
B
Retailer 12
-
$3,464 AUD
View
B
Retailer 13
-
$4,455 AUD
View
Most Expensive
NZ Jewellers
a00bb8ec-bc67-4bba-aaea-e60f044af3d5 · Oct 21
$6,161 AUD
$4,233 USD
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from $1,854 AUDSave up to $2,601 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
$1,854 AUD