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Round|Natural|GIA

1.00ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 3545059321

Certificate GIA 3545059321

Diamond specifications and retailer prices

From $3,200 AUD
As of November 4, 2026
Save $3,823 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,778 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 3545059321. Listed at 18 retailers as of November 2, 2026, with a 119% 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3545059321
Dimensions6.45 × 6.40 × 3.98 mm
L/W Ratio1.01
Top View
6.45 mm6.40 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545059321
Side View
Table 56.0%Crown 32.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.0%

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: $4,441 AUD|Low: $3,200 AUD|High: $7,320 AUD|Avg: $4,690 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$3,200 AUD
Retailer 7$3,326 AUD
Retailer 5$3,683 AUD
Retailer 8$3,724 AUD
Retailer 11$3,857 AUD
Retailer 3$3,876 AUD
Retailer 4$4,418 AUD
Retailer 1$4,441 AUD
Retailer 6$4,877 AUD
Retailer 9$7,023 AUD
Retailer 2$7,292 AUD

27 data points across 11 retailers

18 retailers$3,200 AUD to $7,023 AUD

A
Cheapest Retailer
-
$3,200 AUD
A
Retailer 2
-
$3,326 AUD
View
A
Retailer 3
-
$3,683 AUD
View
A
Retailer 4
-
$3,724 AUD
View
A
Retailer 5
-
$3,857 AUD
View
A
Retailer 6
-
$3,876 AUD
View
Final sale: no returns
A
Retailer 7
-
$3,954 AUD
View
Retailer 8
-
$4,198 AUD
View
Price last confirmed 21 days ago
Retailer 9
-
$4,198 AUD
View
Price last confirmed 17 days ago
Retailer 10
-
$4,360 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$4,401 AUD
View
B+
Retailer 12
-
$4,418 AUD
View
Retailer 13
-
$4,441 AUD
View
Retailer 14
-
$4,845 AUD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$4,877 AUD
View
B
Retailer 16
-
$7,023 AUD
View
Retailer 17
-
$7,292 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
ee99d515-89b0-4947-b6a3-452c10ed6a7d · Oct 17
$8,778 AUD
$6,145 USD
View
Price last confirmed 19 days ago
17 more retailers have this diamond
Prices start from $3,200 AUDSave up to $3,823 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
1.00ct Round
$3,200 AUD