Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2245042567

Certificate GIA 2245042567

Diamond specifications and retailer prices

From $2,138 USD
HK$16,700 HKD
As of October 28, 2026
Save $3,971 USD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,109 USD at NZ Jewellers · As of October 27, 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 27, 2026, with prices from $2,138 to $6,109, a $3,971 spread on the same certified stone. NZ Jewellers lists it at $6,109. 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
Color
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 28
Current: $6,109 USD|Low: $2,138 USD|High: $6,262 USD|Avg: $3,412 USD|+14.3%
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 29, 2026
Retailer 9$2,138 USD
Retailer 10$2,551 USD
Retailer 3$2,665 USD
Retailer 2$2,828 USD
Retailer 7$2,922 USD
Retailer 12$2,996 USD
Retailer 6$3,035 USD
Retailer 11$3,174 USD
Retailer 8$3,419 USD
Retailer 4$4,484 USD
Retailer 5$4,914 USD
NZ Jewellers$6,109 USD

28 data points across 12 retailers

12 retailers$2,138 USD to $6,109 USD

A
Cheapest Retailer
-
$2,138 USD
HK$16,700 HKD
A
Retailer 2
-
$2,551 USD
€2,429 EUR
View
Returns within 14 days
A
Retailer 3
-
$2,665 USD
View
Returns within 30 days
A
Retailer 4
-
$2,828 USD
£2,227 GBP
View
Returns within 30 days
A
Retailer 5
-
$2,922 USD
View
Returns within 21 days
A
Retailer 6
-
$2,996 USD
SGD 4,049 SGD
View
Returns within 14 days
A
Retailer 7
-
$3,035 USD
View
A
Retailer 8
-
$3,174 USD
View
Returns within 30 days
A
Retailer 9
-
$3,419 USD
€3,256 EUR
View
Returns within 100 days
B+
Retailer 10
-
$4,484 USD
€4,270 EUR
View
Price last confirmed 8 days ago
Returns within 14 days
B+
Retailer 11
-
$4,914 USD
£3,869 GBP
View
Most Expensive
B
NZ Jewellers
b74c9b5f-6089-4205-9c3a-b0521a5c51ac · Oct 27
$6,109 USD
View
Returns within 30 days
11 more retailers have this diamond
Prices start from $2,138 USDSave up to $3,971 USD

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
$2,138 USD