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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6565439499

Certificate GIA 6565439499

Diamond specifications and retailer prices

From $4,052 NZD
As of November 4, 2026
Save $7,199 NZD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,252 NZD at NZ Jewellers · As of November 5, 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 6565439499. Listed at 21 retailers as of November 4, 2026, with prices from $4,052 to $11,252, a $7,199 spread on the same certified stone. NZ Jewellers lists it at $11,252. 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°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565439499
Dimensions6.40 × 6.37 × 4.01 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.40 mm6.37 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565439499
Side View
Table 55.0%Crown 36°Girdle: MED-MEDPavilion 40.8°Culet: NoneDepth 62.8%

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 4
Current: $5,150 NZD|Low: $4,052 NZD|High: $9,047 NZD|Avg: $5,466 NZD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4$4,052 NZD
Retailer 11$4,065 NZD
Retailer 5$4,453 NZD
Retailer 12$4,629 NZD
Retailer 13$4,670 NZD
Retailer 9$4,867 NZD
Retailer 1$5,150 NZD
Retailer 3$5,168 NZD
Retailer 7$5,582 NZD
Retailer 6$5,634 NZD
Retailer 8$5,950 NZD
Retailer 10$6,235 NZD
Retailer 2$8,999 NZD

22 data points across 13 retailers

21 retailers$4,052 NZD to $11,252 NZD

A
Cheapest Retailer
-
$4,052 NZD
A
Retailer 2
-
$4,065 NZD
View
Retailer 3
-
$4,453 NZD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$4,559 NZD
View
A
Retailer 5
-
$4,629 NZD
View
A
Retailer 6
-
$4,670 NZD
View
A
Retailer 7
-
$4,737 NZD
View
A
Retailer 8
-
$4,867 NZD
View
A
Retailer 9
-
$4,967 NZD
View
Final sale: no returns
A
Retailer 10
-
$5,150 NZD
View
A
Retailer 11
-
$5,168 NZD
View
A
Retailer 12
-
$5,381 NZD
View
A
Retailer 13
-
$5,582 NZD
View
B+
Retailer 14
-
$5,589 NZD
View
B+
Retailer 15
-
$5,634 NZD
View
B+
Retailer 16
-
$5,950 NZD
View
B+
Retailer 17
-
$6,210 NZD
View
B+
Retailer 18
-
$6,235 NZD
View
B+
Retailer 19
-
$7,834 NZD
View
B
Retailer 20
-
$8,999 NZD
View
Most Expensive
B
NZ Jewellers
7a2dbb6a-4cc8-405f-9168-08fa7d082c80 · Nov 5
$11,252 NZD
$6,325 USD
View
20 more retailers have this diamond
Prices start from $4,052 NZDSave up to $7,199 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
$4,052 NZD