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Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6531774754

Certificate GIA 6531774754

Diamond specifications and retailer prices

From $3,663 AUD
HK$20,100 HKD
As of October 29, 2026
Save $4,850 AUD (57%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $9,329 AUD at NZ Jewellers · As of September 19, 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 6531774754. Listed at 25 retailers as of October 29, 2026, with a 132% 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
FluorescenceFaint
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531774754
Dimensions6.38 × 6.41 × 4.04 mm
L/W Ratio1.00
Top View
6.38 mm6.41 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531774754
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.2%

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: $8,513 AUD|Low: $3,663 AUD|High: $8,700 AUD|Avg: $5,197 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 5$3,663 AUD
Retailer 15$3,909 AUD
Retailer 9$3,965 AUD
Retailer 17$3,965 AUD
Retailer 11$4,022 AUD
Retailer 10$4,087 AUD
Retailer 8$4,427 AUD
Retailer 6$4,597 AUD
Retailer 2$4,716 AUD
Retailer 18$4,826 AUD
Retailer 20$4,826 AUD
Retailer 16$4,983 AUD
Retailer 13$5,075 AUD
Retailer 12$5,108 AUD
Retailer 21$5,363 AUD
Retailer 14$5,506 AUD
Retailer 4$5,538 AUD
Retailer 7$5,800 AUD
Retailer 19$5,950 AUD
Retailer 3$8,183 AUD
NZ Jewellers$8,513 AUD

23 data points across 21 retailers

25 retailers$3,663 AUD to $8,513 AUD

A
Cheapest Retailer
-
$3,663 AUD
HK$20,100 HKD
A
Retailer 2
-
$3,909 AUD
$2,746 USD
View
A
Retailer 3
-
$3,965 AUD
$2,785 USD
View
A
Retailer 4
-
$3,965 AUD
$2,785 USD
View
A
Retailer 5
-
$4,022 AUD
$2,825 USD
View
A
Retailer 6
-
$4,083 AUD
View
A
Retailer 7
-
$4,087 AUD
$2,871 USD
View
Final sale: no returns
A
Retailer 8
-
$4,427 AUD
$3,110 USD
View
A
Retailer 9
-
$4,597 AUD
$3,229 USD
View
A
Retailer 10
-
$4,716 AUD
£2,608 GBP
View
B+
Retailer 11
-
$4,826 AUD
$3,390 USD
View
B+
Retailer 12
-
$4,826 AUD
$3,390 USD
View
B+
Retailer 13
-
$4,983 AUD
$3,500 USD
View
Retailer 14
-
$5,041 AUD
$3,541 USD
View
Price last confirmed 43 days ago
B+
Retailer 15
-
$5,075 AUD
£2,807 GBP
View
B+
Retailer 16
-
$5,108 AUD
$3,588 USD
View
B+
Retailer 17
-
$5,363 AUD
€3,588 EUR
View
Retailer 18
-
$5,506 AUD
View
Price last confirmed 21 days ago
Retailer 19
-
$5,538 AUD
$3,890 USD
View
Price last confirmed 7 days ago
Retailer 20
-
$5,598 AUD
$3,932 USD
View
Price last confirmed 38 days ago
B+
Retailer 21
-
$5,800 AUD
$4,074 USD
View
B+
Retailer 22
-
$5,950 AUD
ZAR 67,526 ZAR
View
B
Retailer 23
-
$8,183 AUD
£4,526 GBP
View
B
Retailer 24
-
$8,513 AUD
$5,980 USD
View
Most Expensive
NZ Jewellers
de278a56-2361-45d9-a9ac-6d825ab6d4ca · Sep 19
$9,329 AUD
$6,553 USD
View
Price last confirmed 40 days ago
24 more retailers have this diamond
Prices start from $3,663 AUDSave up to $4,850 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
$3,663 AUD