Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5553372344

Certificate GIA 5553372344

Diamond specifications and retailer prices

From $4,340 NZD
As of November 5, 2026
Save $2,648 NZD (38%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $10,138 NZD at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553372344. Listed at 28 retailers as of November 5, 2026, with a 61% 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5553372344
Dimensions6.40 × 6.35 × 3.99 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.40 mm6.35 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553372344
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.6%

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 5
Current: $10,138 NZD|Low: $3,871 NZD|High: $11,798 NZD|Avg: $5,980 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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 6, 2026
Retailer 9$3,871 NZD
Retailer 8$4,050 NZD
Retailer 4$4,340 NZD
Retailer 15$4,420 NZD
Retailer 11$4,456 NZD
Retailer 12$4,562 NZD
Retailer 2$4,645 NZD
Retailer 22$4,789 NZD
Retailer 14$5,004 NZD
Retailer 19$5,078 NZD
Retailer 17$5,478 NZD
Retailer 5$5,607 NZD
Retailer 10$5,774 NZD
Retailer 20$5,888 NZD
Retailer 3$5,899 NZD
Retailer 6$5,899 NZD
Retailer 18$6,097 NZD
Retailer 21$6,274 NZD
Retailer 16$6,631 NZD
Retailer 13$6,790 NZD
Retailer 23$6,988 NZD
Retailer 7$9,286 NZD
NZ Jewellers$10,138 NZD

19 data points across 23 retailers

28 retailers$4,340 NZD to $6,988 NZD

Retailer 1
-
$3,871 NZD
Price last confirmed 9 days ago
Retailer 2
-
$4,050 NZD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$4,340 NZD
View
Retailer 4
-
$4,420 NZD
View
Price last confirmed 16 days ago
Retailer 5
-
$4,456 NZD
View
Price last confirmed 11 days ago
Retailer 6
-
$4,562 NZD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$4,645 NZD
View
A
Retailer 8
-
$4,789 NZD
View
Final sale: no returns
Retailer 9
-
$5,004 NZD
View
Price last confirmed 12 days ago
Retailer 10
-
$5,004 NZD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$5,078 NZD
View
Retailer 12
-
$5,197 NZD
View
Price last confirmed 12 days ago
Retailer 13
-
$5,271 NZD
View
Price last confirmed 25 days ago
Retailer 14
-
$5,271 NZD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$5,478 NZD
View
B+
Retailer 16
-
$5,607 NZD
View
Retailer 17
-
$5,774 NZD
View
Price last confirmed 10 days ago
B+
Retailer 18
-
$5,888 NZD
View
B+
Retailer 19
-
$5,899 NZD
View
B+
Retailer 20
-
$5,899 NZD
View
Retailer 21
-
$6,083 NZD
View
Price last confirmed 28 days ago
B+
Retailer 22
-
$6,097 NZD
View
B+
Retailer 23
-
$6,274 NZD
View
Retailer 24
-
$6,631 NZD
View
Price last confirmed 24 days ago
B+
Retailer 25
-
$6,790 NZD
View
B+
Retailer 26
-
$6,988 NZD
View
Retailer 27
-
$9,286 NZD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
be185f9c-4bed-42f0-a803-0f81cb0430b9 · Oct 9
$10,138 NZD
$5,620 USD
View
Price last confirmed 28 days ago
27 more retailers have this diamond
Prices start from $4,340 NZDSave up to $2,648 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