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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

GD • H/SI1 • GIA 2556450106

Certificate GIA 2556450106

Diamond specifications and retailer prices

From $2,748 NZD
HK$12,100 HKD
As of November 1, 2026
Save $5,827 NZD (68%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,575 NZD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 2556450106. Listed at 25 retailers as of October 30, 2026, with prices from $2,748 to $8,575, a $5,827 spread on the same certified stone. NZ Jewellers lists it at $8,575. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle40°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556450106
Dimensions6.02 × 6.11 × 4.09 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Cloud, Pinpoint, Indented Natural, Natural
Top View
6.02 mm6.11 mm1.00 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 2556450106
Side View
Table 59.0%Crown 40°Girdle: MED-VTKPavilion 41°Culet: NoneDepth 67.4%

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 1
Current: $8,575 NZD|Low: $2,725 NZD|High: $8,575 NZD|Avg: $4,167 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
Retailer 24
November 2, 2026
Retailer 20$2,748 NZD
Retailer 13$2,772 NZD
Retailer 7$3,159 NZD
Retailer 15$3,176 NZD
Retailer 11$3,245 NZD
Retailer 10$3,292 NZD
Retailer 8$3,513 NZD
Retailer 4$3,517 NZD
Retailer 6$3,517 NZD
Retailer 21$3,584 NZD
Retailer 23$3,630 NZD
Retailer 5$3,678 NZD
Retailer 3$3,761 NZD
Retailer 12$3,817 NZD
Retailer 2$3,834 NZD
Retailer 9$4,056 NZD
Retailer 14$4,056 NZD
Retailer 22$4,322 NZD
Retailer 19$4,699 NZD
Retailer 24$5,137 NZD
Retailer 16$5,163 NZD
Retailer 17$5,309 NZD
Retailer 18$6,161 NZD
NZ Jewellers$8,575 NZD

28 data points across 24 retailers

25 retailers$2,748 NZD to $8,575 NZD

B+
Cheapest Retailer
-
$2,748 NZD
HK$12,100 HKD
A
Retailer 2
-
$2,772 NZD
₹148,805 INR
View
B+
Retailer 3
-
$3,159 NZD
A$2,739 AUD
View
B+
Retailer 4
-
$3,176 NZD
$1,790 USD
View
B+
Retailer 5
-
$3,245 NZD
$1,829 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,292 NZD
SGD 2,507 SGD
View
B+
Retailer 7
-
$3,513 NZD
$1,980 USD
View
B+
Retailer 8
-
$3,517 NZD
$1,982 USD
View
B+
Retailer 9
-
$3,517 NZD
$1,982 USD
View
B+
Retailer 10
-
$3,584 NZD
$2,020 USD
View
B+
Retailer 11
-
$3,630 NZD
$2,046 USD
View
B+
Retailer 12
-
$3,678 NZD
$2,073 USD
View
B+
Retailer 13
-
$3,761 NZD
$2,120 USD
View
B+
Retailer 14
-
$3,817 NZD
SGD 2,907 SGD
View
B+
Retailer 15
-
$3,834 NZD
£1,702 GBP
View
B+
Retailer 16
-
$4,056 NZD
£1,800 GBP
View
B+
Retailer 17
-
$4,056 NZD
$2,286 USD
View
B+
Retailer 18
-
$4,322 NZD
ZAR 39,349 ZAR
View
Retailer 19
-
$4,560 NZD
A$3,954 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
$4,699 NZD
€2,522 EUR
View
B
Retailer 21
-
$5,137 NZD
$2,895 USD
View
B
Retailer 22
-
$5,163 NZD
$2,910 USD
View
B
Retailer 23
-
$5,309 NZD
$2,992 USD
View
B
Retailer 24
-
$6,161 NZD
£2,734 GBP
View
Most Expensive
C
NZ Jewellers
a8977eb8-a3da-4fd8-8ac7-0b132184bc8c · Oct 30
$8,575 NZD
$4,833 USD
View
24 more retailers have this diamond
Prices start from $2,748 NZDSave up to $5,827 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
$2,748 NZD