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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 $2,775 AUD
As of November 4, 2026
Save $3,739 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,085 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: $7,795 AUD|Low: $2,757 AUD|High: $7,795 AUD|Avg: $4,247 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$2,775 AUD
Retailer 7$3,368 AUD
Retailer 12$3,369 AUD
Retailer 14$3,435 AUD
Retailer 15$3,441 AUD
Retailer 6$3,481 AUD
Retailer 5$3,729 AUD
Retailer 8$3,857 AUD
Retailer 2$3,921 AUD
Retailer 3$3,932 AUD
Retailer 16$4,177 AUD
Retailer 4$4,302 AUD
Retailer 10$4,550 AUD
Retailer 9$4,619 AUD
Retailer 11$6,514 AUD
NZ Jewellers$7,795 AUD

40 data points across 16 retailers

20 retailers$2,775 AUD to $6,514 AUD

A
Cheapest Retailer
-
$2,775 AUD
A
Retailer 2
-
$3,368 AUD
View
A
Retailer 3
-
$3,369 AUD
View
A
Retailer 4
-
$3,435 AUD
View
B+
Retailer 5
-
$3,441 AUD
View
Final sale: no returns
B+
Retailer 6
-
$3,481 AUD
View
Retailer 7
-
$3,729 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$3,729 AUD
View
Price last confirmed 15 days ago
Retailer 9
-
$3,857 AUD
View
Price last confirmed 10 days ago
Retailer 10
-
$3,900 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$3,921 AUD
View
B+
Retailer 12
-
$3,932 AUD
View
Retailer 13
-
$4,177 AUD
View
Price last confirmed 30 days ago
Retailer 14
-
$4,302 AUD
View
Price last confirmed 16 days ago
Retailer 15
-
$4,462 AUD
View
Price last confirmed 45 days ago
B+
Retailer 16
-
$4,550 AUD
View
B+
Retailer 17
-
$4,619 AUD
View
B
Retailer 18
-
$6,514 AUD
View
Retailer 19
-
$7,795 AUD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
81214d62-4064-46f1-8013-a28bef6db1be · Sep 19
$8,085 AUD
$5,555 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $2,775 AUDSave up to $3,739 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
$2,775 AUD