Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5436735609

Certificate GIA 5436735609

Diamond specifications and retailer prices

From $1,912 USD
As of November 5, 2026
Save $2,496 USD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,408 USD 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 $1,912 to $4,408, a $2,496 spread on the same certified stone. MOH London lists it at $4,408. 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
Color
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: $4,408 USD|Low: $1,912 USD|High: $4,834 USD|Avg: $2,731 USD|-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$1,912 USD
Retailer 9$2,024 USD
Retailer 8$2,160 USD
Retailer 7$2,280 USD
Retailer 4$2,412 USD
Retailer 3$2,653 USD
Retailer 2$2,979 USD
Retailer 5$3,079 USD
MOH London$4,408 USD

14 data points across 9 retailers

9 retailers$1,912 USD to $4,408 USD

A
Cheapest Retailer
-
$1,912 USD
A
Retailer 2
-
$2,024 USD
View
Final sale: no returns
A
Retailer 3
-
$2,160 USD
View
A
Retailer 4
-
$2,280 USD
View
A
Retailer 5
-
$2,412 USD
View
A
Retailer 6
-
$2,653 USD
View
A
Retailer 7
-
$2,979 USD
View
A
Retailer 8
-
$3,079 USD
View
Most Expensive
B+
MOH London
E320763C6 · Nov 4
$4,408 USD
£3,471 GBP
View
8 more retailers have this diamond
Prices start from $1,912 USDSave up to $2,496 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
1.00ct Round
$1,912 USD