Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 3525837494

Certificate GIA 3525837494

Diamond specifications and retailer prices

From $3,699 AUD
HK$20,300 HKD
As of October 29, 2026
Save $4,694 AUD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $9,064 AUD at NZ Jewellers · As of September 17, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3525837494. Listed at 23 retailers as of October 29, 2026, with a 127% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3525837494
Dimensions6.45 × 6.40 × 4.01 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.45 mm6.40 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3525837494
Side View
Table 58.0%Crown 35.5°Girdle: MD-STKPavilion 41°Culet: NoneDepth 62.4%

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 29
Current: $5,845 AUD|Low: $3,699 AUD|High: $8,449 AUD|Avg: $5,159 AUD|-2.2%
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
October 30, 2026
Retailer 14$3,699 AUD
Retailer 5$4,432 AUD
Retailer 4$4,521 AUD
Retailer 11$4,541 AUD
Retailer 13$4,607 AUD
Retailer 12$4,805 AUD
Retailer 7$4,818 AUD
Retailer 3$4,993 AUD
Retailer 6$5,182 AUD
Retailer 8$5,185 AUD
Retailer 2$5,353 AUD
Retailer 1$5,845 AUD
Retailer 10$6,079 AUD
Retailer 9$8,393 AUD

31 data points across 14 retailers

23 retailers$3,699 AUD to $8,393 AUD

A
Cheapest Retailer
-
$3,699 AUD
HK$20,300 HKD
A
Retailer 2
-
$4,432 AUD
$3,113 USD
View
A
Retailer 3
-
$4,521 AUD
$3,176 USD
View
Retailer 4
-
$4,541 AUD
$3,190 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$4,607 AUD
$3,236 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,805 AUD
$3,375 USD
View
B+
Retailer 7
-
$4,818 AUD
£2,665 GBP
View
Retailer 8
-
$4,993 AUD
$3,507 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$4,993 AUD
$3,507 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$5,182 AUD
SGD 4,919 SGD
View
Retailer 11
-
$5,183 AUD
$3,641 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$5,185 AUD
£2,868 GBP
View
Retailer 13
-
$5,203 AUD
$3,655 USD
View
Price last confirmed 43 days ago
Retailer 14
-
$5,353 AUD
View
Price last confirmed 27 days ago
Retailer 15
-
$5,760 AUD
$4,046 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
$5,845 AUD
€3,910 EUR
View
Retailer 17
-
$6,003 AUD
$4,217 USD
View
Price last confirmed 43 days ago
Retailer 18
-
$6,003 AUD
$4,217 USD
View
Price last confirmed 39 days ago
B+
Retailer 19
-
$6,079 AUD
ZAR 68,982 ZAR
View
B
Retailer 20
-
$8,393 AUD
£4,642 GBP
View
Retailer 21
-
$8,697 AUD
$6,109 USD
View
Price last confirmed 10 days ago
Retailer 22
-
$9,064 AUD
$6,367 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
9a71b17f-8934-4e17-94c6-b0ed6510c950 · Sep 17
$9,064 AUD
$6,367 USD
View
Price last confirmed 43 days ago
22 more retailers have this diamond
Prices start from $3,699 AUDSave up to $4,694 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 Round
$3,699 AUD