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Round|Natural|GIA

1.02ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2526780205

Certificate GIA 2526780205

Diamond specifications and retailer prices

From $2,724 AUD
As of November 4, 2026
Save $3,670 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,935 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526780205. Listed at 20 retailers as of November 4, 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2526780205
Dimensions6.46 × 6.42 × 4.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.46 mm6.42 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526780205
Side View
Table 58.0%Crown 34.5°Girdle: MD-STKPavilion 41.6°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: Nov 4
Current: $7,651 AUD|Low: $2,706 AUD|High: $7,651 AUD|Avg: $4,169 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
November 6, 2026
Retailer 13$2,724 AUD
Retailer 7$3,306 AUD
Retailer 12$3,307 AUD
Retailer 14$3,371 AUD
Retailer 15$3,377 AUD
Retailer 6$3,417 AUD
Retailer 5$3,660 AUD
Retailer 8$3,786 AUD
Retailer 2$3,848 AUD
Retailer 3$3,860 AUD
Retailer 16$4,100 AUD
Retailer 4$4,223 AUD
Retailer 10$4,465 AUD
Retailer 9$4,534 AUD
Retailer 11$6,394 AUD
NZ Jewellers$7,651 AUD

40 data points across 16 retailers

20 retailers$2,724 AUD to $6,394 AUD

A
Cheapest Retailer
-
$2,724 AUD
A
Retailer 2
-
$3,306 AUD
View
A
Retailer 3
-
$3,307 AUD
View
A
Retailer 4
-
$3,371 AUD
View
B+
Retailer 5
-
$3,377 AUD
View
Final sale: no returns
B+
Retailer 6
-
$3,417 AUD
View
Retailer 7
-
$3,660 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$3,660 AUD
View
Price last confirmed 15 days ago
Retailer 9
-
$3,786 AUD
View
Price last confirmed 10 days ago
Retailer 10
-
$3,828 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$3,848 AUD
View
B+
Retailer 12
-
$3,860 AUD
View
Retailer 13
-
$4,100 AUD
View
Price last confirmed 30 days ago
Retailer 14
-
$4,223 AUD
View
Price last confirmed 16 days ago
Retailer 15
-
$4,380 AUD
View
Price last confirmed 45 days ago
B+
Retailer 16
-
$4,465 AUD
View
B+
Retailer 17
-
$4,534 AUD
View
B
Retailer 18
-
$6,394 AUD
View
Retailer 19
-
$7,651 AUD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
81214d62-4064-46f1-8013-a28bef6db1be · Sep 19
$7,935 AUD
$5,555 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $2,724 AUDSave up to $3,670 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
$2,724 AUD