Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6435180932

Certificate GIA 6435180932

Diamond specifications and retailer prices

From $4,648 NZD
As of November 6, 2026
Save $5,333 NZD (53%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: $9,981 NZD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

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 6435180932. Listed at 34 retailers as of November 5, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6435180932
Dimensions6.48 × 6.42 × 3.90 mm
L/W Ratio1.01
Top View
6.48 mm6.42 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6435180932
Side View
Table 62.0%Crown 33°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.4%

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 6
Current: $5,483 NZD|Low: $4,714 NZD|High: $9,695 NZD|Avg: $6,776 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$4,714 NZD
Retailer 3$4,791 NZD
Retailer 12$5,191 NZD
Retailer 1$5,483 NZD
Retailer 2$5,886 NZD
Retailer 5$5,892 NZD
Retailer 4$6,143 NZD
Retailer 6$6,653 NZD
Retailer 8$6,664 NZD
Retailer 7$6,993 NZD
Retailer 11$9,489 NZD
Retailer 10$9,581 NZD

35 data points across 12 retailers

34 retailers$4,648 NZD to $9,981 NZD

A
Cheapest Retailer
-
$4,648 NZD
A
Retailer 2
-
$4,714 NZD
View
A
Retailer 3
-
$4,791 NZD
View
Final sale: no returns
A
Retailer 4
-
$5,070 NZD
View
Retailer 5
-
$5,191 NZD
View
Price last confirmed 50 days ago
Retailer 6
-
$5,191 NZD
View
Price last confirmed 28 days ago
Retailer 7
-
$5,191 NZD
View
Price last confirmed 8 days ago
Retailer 8
-
$5,191 NZD
View
Price last confirmed 21 days ago
Retailer 9
-
$5,191 NZD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$5,241 NZD
View
Retailer 11
-
$5,390 NZD
View
Price last confirmed 38 days ago
A
Retailer 12
-
$5,483 NZD
View
B+
Retailer 13
-
$5,675 NZD
View
B+
Retailer 14
-
$5,675 NZD
View
B+
Retailer 15
-
$5,870 NZD
View
B+
Retailer 16
-
$5,886 NZD
View
Retailer 17
-
$5,886 NZD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
$5,892 NZD
View
Retailer 19
-
$5,990 NZD
View
Price last confirmed 28 days ago
Retailer 20
-
$5,990 NZD
View
Price last confirmed 45 days ago
Retailer 21
-
$5,990 NZD
View
Price last confirmed 16 days ago
B+
Retailer 22
-
$5,990 NZD
View
Retailer 23
-
$6,143 NZD
View
Price last confirmed 33 days ago
B+
Retailer 24
-
$6,381 NZD
View
Retailer 25
-
$6,646 NZD
View
Price last confirmed 22 days ago
B+
Retailer 26
-
$6,653 NZD
View
B+
Retailer 27
-
$6,664 NZD
View
B+
Retailer 28
-
$6,993 NZD
View
Retailer 29
-
$9,489 NZD
View
Price last confirmed 9 days ago
B
Retailer 30
-
$9,581 NZD
View
B
Retailer 31
-
$9,981 NZD
View
Retailer 32
-
$9,981 NZD
View
Price last confirmed 39 days ago
Retailer 33
-
$9,981 NZD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
8b22a2a6-3c47-4f47-b165-e8d03f8bd461 · Oct 20
$9,981 NZD
$5,611 USD
View
Price last confirmed 16 days ago
33 more retailers have this diamond
Prices start from $4,648 NZDSave up to $5,333 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
$4,648 NZD