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Heart|Natural|GIA

1.02ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 1549111100

Certificate GIA 1549111100

Diamond specifications and retailer prices

From $2,132 AUD
HK$11,700 HKD
As of October 30, 2026
Save $2,880 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,376 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct 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 1549111100. Listed at 17 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

1.02
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle43.6°
OriginNatural
Grading LabGIA
CertificateGIA 1549111100
Dimensions6.02 × 6.71 × 4.29 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
6.02 mm6.71 mm1.02 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549111100
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 43.6°Culet: NoneDepth 64.0%

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: Oct 30
Current: $2,828 AUD|Low: $2,125 AUD|High: $5,408 AUD|Avg: $3,025 AUD|-3.9%
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
October 30, 2026
Retailer 15$2,132 AUD
Retailer 3$2,380 AUD
Retailer 13$2,416 AUD
Retailer 9$2,420 AUD
Retailer 12$2,517 AUD
Retailer 8$2,561 AUD
Retailer 14$2,571 AUD
Retailer 6$2,634 AUD
Retailer 4$2,646 AUD
Retailer 10$2,753 AUD
Retailer 1$2,828 AUD
Retailer 11$3,434 AUD
Retailer 7$3,635 AUD
Retailer 2$4,482 AUD
Retailer 5$5,012 AUD

27 data points across 15 retailers

17 retailers$2,132 AUD to $5,012 AUD

A
Cheapest Retailer
-
$2,132 AUD
HK$11,700 HKD
A
Retailer 2
-
$2,380 AUD
$1,672 USD
View
Final sale: no returns
A
Retailer 3
-
$2,416 AUD
$1,697 USD
View
A
Retailer 4
-
$2,420 AUD
$1,700 USD
View
A
Retailer 5
-
$2,517 AUD
$1,768 USD
View
Retailer 6
-
$2,561 AUD
€1,713 EUR
View
Price last confirmed 2 days ago
A
Retailer 7
-
$2,571 AUD
$1,806 USD
View
A
Retailer 8
-
$2,634 AUD
$1,850 USD
View
A
Retailer 9
-
$2,646 AUD
$1,859 USD
View
A
Retailer 10
-
$2,753 AUD
$1,934 USD
View
A
Retailer 11
-
$2,828 AUD
£1,564 GBP
View
B+
Retailer 12
-
$3,348 AUD
View
Retailer 13
-
$3,434 AUD
ZAR 38,973 ZAR
View
Price last confirmed 10 days ago
Retailer 14
-
$3,635 AUD
View
Price last confirmed 26 days ago
Retailer 15
-
$4,482 AUD
$3,148 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$5,012 AUD
£2,772 GBP
View
Most Expensive
NZ Jewellers
22ff4afb-d96f-4673-a3a4-2f7cb3bff97e · Sep 25
$6,376 AUD
$4,479 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $2,132 AUDSave up to $2,880 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
1.02ct Heart
$2,132 AUD