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Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2245042567

Certificate GIA 2245042567

Diamond specifications and retailer prices

From $3,043 AUD
HK$16,700 HKD
As of October 30, 2026
Save $5,654 AUD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,697 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245042567. Listed at 12 retailers as of October 30, 2026, with prices from $3,043 to $8,697, a $5,654 spread on the same certified stone. NZ Jewellers lists it at $8,697. 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

1.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2245042567
Dimensions6.49 × 6.54 × 4.08 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
6.49 mm6.54 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245042567
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°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: Oct 30
Current: $8,697 AUD|Low: $3,043 AUD|High: $8,915 AUD|Avg: $4,867 AUD|+15.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10$3,043 AUD
Retailer 6$3,637 AUD
Retailer 3$3,794 AUD
Retailer 2$4,015 AUD
Retailer 9$4,160 AUD
Retailer 12$4,265 AUD
Retailer 8$4,321 AUD
Retailer 11$4,519 AUD
Retailer 5$4,886 AUD
Retailer 4$6,383 AUD
Retailer 7$6,995 AUD
NZ Jewellers$8,697 AUD

28 data points across 12 retailers

12 retailers$3,043 AUD to $8,697 AUD

A
Cheapest Retailer
-
$3,043 AUD
HK$16,700 HKD
A
Retailer 2
-
$3,637 AUD
€2,433 EUR
View
A
Retailer 3
-
$3,794 AUD
$2,665 USD
View
A
Retailer 4
-
$4,015 AUD
£2,221 GBP
View
A
Retailer 5
-
$4,160 AUD
$2,922 USD
View
A
Retailer 6
-
$4,265 AUD
SGD 4,049 SGD
View
A
Retailer 7
-
$4,321 AUD
$3,035 USD
View
A
Retailer 8
-
$4,519 AUD
$3,174 USD
View
A
Retailer 9
-
$4,886 AUD
€3,269 EUR
View
Retailer 10
-
$6,383 AUD
€4,270 EUR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$6,995 AUD
£3,869 GBP
View
Most Expensive
B
NZ Jewellers
4708152d-5e3d-4a33-9040-4d3188f0d887 · Oct 30
$8,697 AUD
$6,109 USD
View
11 more retailers have this diamond
Prices start from $3,043 AUDSave up to $5,654 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
1.09ct Round
$3,043 AUD