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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5553042899

Certificate GIA 5553042899

Diamond specifications and retailer prices

From $2,955 NZD
As of November 5, 2026
Save $4,059 NZD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,606 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553042899. Listed at 19 retailers as of November 2, 2026, with a 137% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5553042899
Dimensions6.33 × 6.36 × 4.00 mm
L/W Ratio1.00
Top View
6.33 mm6.36 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553042899
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

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: $8,606 NZD|Low: $2,955 NZD|High: $8,606 NZD|Avg: $4,403 NZD|+0.8%
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 15$2,955 NZD
Retailer 17$3,051 NZD
Retailer 5$3,277 NZD
Retailer 3$3,348 NZD
Retailer 18$3,394 NZD
Retailer 14$3,718 NZD
Retailer 2$3,725 NZD
Retailer 10$3,729 NZD
Retailer 8$3,901 NZD
Retailer 4$4,216 NZD
Retailer 6$4,216 NZD
Retailer 9$4,303 NZD
Retailer 11$4,325 NZD
Retailer 7$4,358 NZD
Retailer 16$4,887 NZD
Retailer 12$5,097 NZD
Retailer 13$7,014 NZD
NZ Jewellers$8,606 NZD

26 data points across 18 retailers

19 retailers$2,955 NZD to $7,014 NZD

A
Cheapest Retailer
-
$2,955 NZD
A
Retailer 2
-
$3,051 NZD
View
A
Retailer 3
-
$3,277 NZD
View
A
Retailer 4
-
$3,348 NZD
View
Final sale: no returns
A
Retailer 5
-
$3,394 NZD
View
Retailer 6
-
$3,700 NZD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$3,718 NZD
View
A
Retailer 8
-
$3,725 NZD
View
Retailer 9
-
$3,729 NZD
View
Price last confirmed 15 days ago
Retailer 10
-
$3,901 NZD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$4,216 NZD
View
A
Retailer 12
-
$4,216 NZD
View
Retailer 13
-
$4,303 NZD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$4,325 NZD
View
B+
Retailer 15
-
$4,358 NZD
View
B+
Retailer 16
-
$4,887 NZD
View
B+
Retailer 17
-
$5,097 NZD
View
B
Retailer 18
-
$7,014 NZD
View
Most Expensive
NZ Jewellers
83c0332c-7649-483a-b899-540f4f630fff · Oct 20
$8,606 NZD
$4,838 USD
View
Price last confirmed 17 days ago
18 more retailers have this diamond
Prices start from $2,955 NZDSave up to $4,059 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
$2,955 NZD