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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1565410290

Certificate GIA 1565410290

Diamond specifications and retailer prices

From $4,340 NZD
As of November 6, 2026
Save $5,666 NZD (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $10,006 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565410290. Listed at 24 retailers as of November 5, 2026, with prices from $4,340 to $10,006, a $5,666 spread on the same certified stone. NZ Jewellers lists it at $10,006. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565410290
Dimensions6.39 × 6.41 × 3.92 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.39 mm6.41 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565410290
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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: $10,006 NZD|Low: $4,293 NZD|High: $10,006 NZD|Avg: $6,524 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 3$4,340 NZD
Retailer 2$4,497 NZD
Retailer 15$5,046 NZD
Retailer 17$5,249 NZD
Retailer 10$5,302 NZD
Retailer 4$5,312 NZD
Retailer 11$5,496 NZD
Retailer 5$5,744 NZD
Retailer 7$5,744 NZD
Retailer 13$5,906 NZD
Retailer 6$5,965 NZD
Retailer 12$6,020 NZD
Retailer 9$6,628 NZD
Retailer 16$6,680 NZD
Retailer 14$7,010 NZD
Retailer 8$9,564 NZD
Retailer 18$9,606 NZD
NZ Jewellers$10,006 NZD

21 data points across 18 retailers

24 retailers$4,340 NZD to $10,006 NZD

A
Cheapest Retailer
-
$4,340 NZD
A
Retailer 2
-
$4,497 NZD
View
A
Retailer 3
-
$5,046 NZD
View
B+
Retailer 4
-
$5,147 NZD
View
B+
Retailer 5
-
$5,240 NZD
View
B+
Retailer 6
-
$5,249 NZD
View
B+
Retailer 7
-
$5,302 NZD
View
Final sale: no returns
B+
Retailer 8
-
$5,312 NZD
View
B+
Retailer 9
-
$5,312 NZD
View
B+
Retailer 10
-
$5,496 NZD
View
B+
Retailer 11
-
$5,744 NZD
View
Retailer 12
-
$5,744 NZD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$5,809 NZD
View
B+
Retailer 14
-
$5,906 NZD
View
B+
Retailer 15
-
$5,965 NZD
View
B+
Retailer 16
-
$6,002 NZD
View
B+
Retailer 17
-
$6,020 NZD
View
Retailer 18
-
$6,159 NZD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$6,628 NZD
View
B+
Retailer 20
-
$6,680 NZD
View
B+
Retailer 21
-
$7,010 NZD
View
Retailer 22
-
$9,564 NZD
View
Price last confirmed 10 days ago
B
Retailer 23
-
$9,606 NZD
View
Most Expensive
B
NZ Jewellers
825c2c48-2507-4220-9faf-f08f54ee642f · Nov 5
$10,006 NZD
$5,547 USD
View
23 more retailers have this diamond
Prices start from $4,340 NZDSave up to $5,666 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
$4,340 NZD