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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555742497

Certificate GIA 6555742497

Diamond specifications and retailer prices

From $4,077 NZD
As of November 6, 2026
Save $6,731 NZD (62%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,809 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555742497. Listed at 26 retailers as of November 5, 2026, with prices from $4,077 to $10,809, a $6,731 spread on the same certified stone. NZ Jewellers lists it at $10,809. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555742497
Dimensions6.44 × 6.46 × 3.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.44 mm6.46 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555742497
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.6%

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: $4,810 NZD|Low: $4,100 NZD|High: $8,749 NZD|Avg: $5,534 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$4,100 NZD
Retailer 1$4,810 NZD
Retailer 6$4,864 NZD
Retailer 7$5,081 NZD
Retailer 8$5,084 NZD
Retailer 2$5,440 NZD
Retailer 3$5,641 NZD
Retailer 4$8,622 NZD

42 data points across 8 retailers

26 retailers$4,077 NZD to $10,809 NZD

A
Cheapest Retailer
-
$4,077 NZD
A
Retailer 2
-
$4,100 NZD
View
Final sale: no returns
A
Retailer 3
-
$4,109 NZD
View
A
Retailer 4
-
$4,195 NZD
View
B+
Retailer 5
-
$4,346 NZD
View
B+
Retailer 6
-
$4,419 NZD
View
B+
Retailer 7
-
$4,684 NZD
View
Retailer 8
-
$4,684 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$4,751 NZD
View
B+
Retailer 10
-
$4,810 NZD
View
B+
Retailer 11
-
$4,864 NZD
View
B+
Retailer 12
-
$5,081 NZD
View
B+
Retailer 13
-
$5,081 NZD
View
B+
Retailer 14
-
$5,084 NZD
View
B+
Retailer 15
-
$5,120 NZD
View
B+
Retailer 16
-
$5,354 NZD
View
B+
Retailer 17
-
$5,354 NZD
View
B+
Retailer 18
-
$5,403 NZD
View
B+
Retailer 19
-
$5,404 NZD
View
B+
Retailer 20
-
$5,440 NZD
View
B
Retailer 21
-
$5,532 NZD
View
B+
Retailer 22
-
$5,641 NZD
View
B
Retailer 23
-
$6,265 NZD
View
B
Retailer 24
-
$7,450 NZD
View
B
Retailer 25
-
$8,622 NZD
View
Most Expensive
B
NZ Jewellers
3e6af43f-47f0-4dd2-a37d-27fc8b5b5cca · Nov 5
$10,809 NZD
$6,076 USD
View
25 more retailers have this diamond
Prices start from $4,077 NZDSave up to $6,731 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
$4,077 NZD