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Round|Natural|GIA

1.02ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1525159336

Certificate GIA 1525159336

Diamond specifications and retailer prices

From $2,773 AUD
As of November 5, 2026
Save $5,287 AUD (66%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,811 AUD at NZ Jewellers · As of September 15, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1525159336. Listed at 17 retailers as of November 5, 2026, with a 191% 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1525159336
Dimensions6.44 × 6.40 × 4.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural
Top View
6.44 mm6.40 mm1.02 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525159336
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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 5
Current: $8,060 AUD|Low: $2,773 AUD|High: $8,811 AUD|Avg: $4,240 AUD|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$2,773 AUD
Retailer 9$2,816 AUD
Retailer 4$3,381 AUD
Retailer 10$3,453 AUD
Retailer 2$3,914 AUD
Retailer 3$4,056 AUD
Retailer 6$4,164 AUD
Retailer 7$4,327 AUD
Retailer 8$6,754 AUD
NZ Jewellers$8,060 AUD

30 data points across 10 retailers

17 retailers$2,773 AUD to $8,060 AUD

A
Cheapest Retailer
-
$2,773 AUD
A
Retailer 2
-
$2,816 AUD
View
A
Retailer 3
-
$3,381 AUD
View
A
Retailer 4
-
$3,407 AUD
View
A
Retailer 5
-
$3,453 AUD
View
Retailer 6
-
$3,638 AUD
View
Price last confirmed 82 days ago
A
Retailer 7
-
$3,856 AUD
View
A
Retailer 8
-
$3,914 AUD
View
A
Retailer 9
-
$4,004 AUD
View
A
Retailer 10
-
$4,056 AUD
View
A
Retailer 11
-
$4,057 AUD
View
A
Retailer 12
-
$4,164 AUD
View
A
Retailer 13
-
$4,327 AUD
View
B+
Retailer 14
-
$4,448 AUD
View
B+
Retailer 15
-
$6,754 AUD
View
B
Retailer 16
-
$8,060 AUD
View
Most Expensive
NZ Jewellers
2486f342-7bd9-4681-9583-47cfd3408ee9 · Sep 15
$8,811 AUD
$6,168 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from $2,773 AUDSave up to $5,287 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
$2,773 AUD