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Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2558562263

Certificate GIA 2558562263

Diamond specifications and retailer prices

From $3,335 AUD
HK$18,300 HKD
As of October 31, 2026
Save $4,121 AUD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,726 AUD at NZ Jewellers · As of October 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 2558562263. Listed at 22 retailers as of October 29, 2026, with a 124% 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 angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2558562263
Dimensions6.40 × 6.45 × 4.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.40 mm6.45 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2558562263
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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 31
Current: $3,517 AUD|Low: $3,335 AUD|High: $7,507 AUD|Avg: $4,769 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4$3,335 AUD
Retailer 1$3,517 AUD
Retailer 9$3,875 AUD
Retailer 10$4,093 AUD
Retailer 5$4,314 AUD
Retailer 6$4,606 AUD
Retailer 2$4,755 AUD
Retailer 7$5,193 AUD
Retailer 3$5,451 AUD
Retailer 8$7,456 AUD

33 data points across 10 retailers

22 retailers$3,335 AUD to $7,456 AUD

A
Cheapest Retailer
-
$3,335 AUD
HK$18,300 HKD
A
Retailer 2
-
$3,517 AUD
₹235,271 INR
View
A
Retailer 3
-
$3,875 AUD
SGD 3,678 SGD
View
A
Retailer 4
-
$3,989 AUD
$2,802 USD
View
A
Retailer 5
-
$4,054 AUD
$2,848 USD
View
A
Retailer 6
-
$4,093 AUD
$2,875 USD
View
Final sale: no returns
A
Retailer 7
-
$4,100 AUD
$2,880 USD
View
A
Retailer 8
-
$4,314 AUD
$3,030 USD
View
Retailer 9
-
$4,435 AUD
$3,115 USD
View
Price last confirmed 44 days ago
Retailer 10
-
$4,435 AUD
$3,115 USD
View
Price last confirmed 15 days ago
Retailer 11
-
$4,435 AUD
$3,115 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$4,605 AUD
$3,235 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$4,606 AUD
£2,547 GBP
View
B+
Retailer 14
-
$4,646 AUD
SGD 4,410 SGD
View
Retailer 15
-
$4,755 AUD
View
Price last confirmed 27 days ago
Retailer 16
-
$5,116 AUD
$3,594 USD
View
Price last confirmed 39 days ago
Retailer 17
-
$5,116 AUD
$3,594 USD
View
Price last confirmed 13 days ago
B+
Retailer 18
-
$5,193 AUD
€3,474 EUR
View
B+
Retailer 19
-
$5,451 AUD
ZAR 61,860 ZAR
View
B
Retailer 20
-
$7,456 AUD
£4,124 GBP
View
Retailer 21
-
$7,726 AUD
$5,427 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
02e91905-9404-4f2b-904c-e8ffbccf0f33 · Oct 17
$7,726 AUD
$5,427 USD
View
Price last confirmed 14 days ago
21 more retailers have this diamond
Prices start from $3,335 AUDSave up to $4,121 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
$3,335 AUD