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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 $2,733 SGD
HK$16,700 HKD
As of October 30, 2026
Save $5,077 SGD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,810 SGD 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 $2,733 to $7,810, a $5,077 spread on the same certified stone. NZ Jewellers lists it at $7,810. 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: $7,810 SGD|Low: $2,733 SGD|High: $8,005 SGD|Avg: $4,371 SGD|+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$2,733 SGD
Retailer 6$3,266 SGD
Retailer 3$3,407 SGD
Retailer 2$3,605 SGD
Retailer 9$3,735 SGD
Retailer 12$3,830 SGD
Retailer 8$3,880 SGD
Retailer 11$4,058 SGD
Retailer 5$4,388 SGD
Retailer 4$5,732 SGD
Retailer 7$6,282 SGD
NZ Jewellers$7,810 SGD

28 data points across 12 retailers

12 retailers$2,733 SGD to $7,810 SGD

A
Cheapest Retailer
-
$2,733 SGD
HK$16,700 HKD
A
Retailer 2
-
$3,266 SGD
€2,433 EUR
View
A
Retailer 3
-
$3,407 SGD
$2,665 USD
View
A
Retailer 4
-
$3,605 SGD
£2,221 GBP
View
A
Retailer 5
-
$3,735 SGD
$2,922 USD
View
A
Retailer 6
-
$3,830 SGD
View
A
Retailer 7
-
$3,880 SGD
$3,035 USD
View
A
Retailer 8
-
$4,058 SGD
$3,174 USD
View
A
Retailer 9
-
$4,388 SGD
€3,269 EUR
View
Retailer 10
-
$5,732 SGD
€4,270 EUR
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$6,282 SGD
£3,869 GBP
View
Most Expensive
B
NZ Jewellers
4708152d-5e3d-4a33-9040-4d3188f0d887 · Oct 30
$7,810 SGD
$6,109 USD
View
11 more retailers have this diamond
Prices start from $2,733 SGDSave up to $5,077 SGD

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
$2,733 SGD