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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 $3,401 NZD
As of November 5, 2026
Save $4,440 NZD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,842 NZD 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 $3,401 to $7,842, a $4,440 spread on the same certified stone. MOH London lists it at $7,842. 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: $7,842 NZD|Low: $3,401 NZD|High: $8,599 NZD|Avg: $4,857 NZD|-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$3,401 NZD
Retailer 9$3,600 NZD
Retailer 8$3,842 NZD
Retailer 7$4,056 NZD
Retailer 2$4,294 NZD
Retailer 4$4,719 NZD
Retailer 3$5,299 NZD
Retailer 5$5,477 NZD
MOH London$7,842 NZD

14 data points across 9 retailers

9 retailers$3,401 NZD to $7,842 NZD

A
Cheapest Retailer
-
$3,401 NZD
A
Retailer 2
-
$3,600 NZD
View
Final sale: no returns
A
Retailer 3
-
$3,842 NZD
View
A
Retailer 4
-
$4,056 NZD
View
A
Retailer 5
-
$4,294 NZD
View
A
Retailer 6
-
$4,719 NZD
View
A
Retailer 7
-
$5,299 NZD
View
A
Retailer 8
-
$5,477 NZD
View
Most Expensive
B+
MOH London
E320763C6 · Nov 4
$7,842 NZD
£3,471 GBP
View
8 more retailers have this diamond
Prices start from $3,401 NZDSave up to $4,440 NZD

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
$3,401 NZD