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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5436735609

Certificate GIA 5436735609

Diamond specifications and retailer prices

From $2,442 SGD
As of November 5, 2026
Save $3,188 SGD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,631 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct 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 5436735609. Listed at 9 retailers as of November 4, 2026, with prices from $2,442 to $5,631, a $3,188 spread on the same certified stone. MOH London lists it at $5,631. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5436735609
Dimensions6.32 × 6.36 × 4.00 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
6.32 mm6.36 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5436735609
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.1%

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: $5,631 SGD|Low: $2,442 SGD|High: $6,174 SGD|Avg: $3,488 SGD|-8.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$2,442 SGD
Retailer 9$2,585 SGD
Retailer 8$2,759 SGD
Retailer 7$2,912 SGD
Retailer 4$3,081 SGD
Retailer 3$3,389 SGD
Retailer 2$3,805 SGD
Retailer 5$3,933 SGD
MOH London$5,631 SGD

14 data points across 9 retailers

9 retailers$2,442 SGD to $5,631 SGD

A
Cheapest Retailer
-
$2,442 SGD
A
Retailer 2
-
$2,585 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,759 SGD
View
A
Retailer 4
-
$2,912 SGD
View
A
Retailer 5
-
$3,081 SGD
View
A
Retailer 6
-
$3,389 SGD
View
A
Retailer 7
-
$3,805 SGD
View
A
Retailer 8
-
$3,933 SGD
View
Most Expensive
B+
MOH London
E320763C6 · Nov 4
$5,631 SGD
£3,471 GBP
View
8 more retailers have this diamond
Prices start from $2,442 SGDSave up to $3,188 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
1.00ct Round
$2,442 SGD