Heart|Natural|GIA

1.02ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2517121318

Certificate GIA 2517121318

Diamond specifications and retailer prices

From $3,311 AUD
$2,326 USD
As of October 30, 2026
Save $3,304 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,895 AUD at NZ Jewellers · As of September 27, 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 2517121318. Listed at 15 retailers as of October 30, 2026, with a 100% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2517121318
Dimensions6.27 × 6.98 × 3.99 mm
L/W Ratio1.11
Top View
6.27 mm6.98 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2517121318
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,684 AUD|Low: $2,834 AUD|High: $6,697 AUD|Avg: $3,989 AUD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$2,843 AUD
Retailer 10$3,311 AUD
Retailer 2$3,382 AUD
Retailer 8$3,485 AUD
Retailer 1$3,684 AUD
Retailer 3$3,723 AUD
Retailer 11$3,777 AUD
Retailer 5$4,036 AUD
Retailer 9$4,231 AUD
Retailer 6$4,642 AUD
Retailer 4$6,615 AUD

36 data points across 11 retailers

15 retailers$3,311 AUD to $6,615 AUD

Retailer 1
-
$2,843 AUD
₹190,170 INR
Price last confirmed 9 days ago
Retailer 2
-
$3,092 AUD
$2,172 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$3,311 AUD
$2,326 USD
View
B+
Retailer 4
-
$3,382 AUD
$2,376 USD
View
B+
Retailer 5
-
$3,485 AUD
$2,448 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,684 AUD
£2,037 GBP
View
B+
Retailer 7
-
$3,723 AUD
$2,615 USD
View
Retailer 8
-
$3,777 AUD
$2,653 USD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
$3,977 AUD
$2,794 USD
View
B+
Retailer 10
-
$4,036 AUD
£2,233 GBP
View
Retailer 11
-
$4,231 AUD
View
Price last confirmed 25 days ago
Retailer 12
-
$4,358 AUD
$3,061 USD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
$4,642 AUD
ZAR 52,675 ZAR
View
B
Retailer 14
-
$6,615 AUD
£3,659 GBP
View
Most Expensive
NZ Jewellers
ef11eb6e-04f1-4e90-9480-840484944c4b · Sep 27
$7,895 AUD
$5,546 USD
View
Price last confirmed 35 days ago
14 more retailers have this diamond
Prices start from $3,311 AUDSave up to $3,304 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.

B+
1.02ct Heart
$3,311 AUD