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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 7556341509

Certificate GIA 7556341509

Diamond specifications and retailer prices

From $3,734 NZD
As of November 4, 2026
Save $6,265 NZD (63%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $9,999 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 7556341509. Listed at 27 retailers as of November 4, 2026, with prices from $3,734 to $9,999, a $6,265 spread on the same certified stone. NZ Jewellers lists it at $9,999. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7556341509
Dimensions6.49 × 6.42 × 3.83 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Needle, Natural
Top View
6.49 mm6.42 mm1.00 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556341509
Side View
Table 64.0%Crown 31.5°Girdle: THN-THKPavilion 41.2°Culet: NoneDepth 59.3%

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 4
Current: $9,999 NZD|Low: $3,711 NZD|High: $9,999 NZD|Avg: $5,301 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
Retailer 25
Retailer 26
November 6, 2026
Retailer 3$3,734 NZD
Retailer 23$3,748 NZD
Retailer 11$4,225 NZD
Retailer 17$4,232 NZD
Retailer 24$4,273 NZD
Retailer 15$4,284 NZD
Retailer 12$4,415 NZD
Retailer 2$4,577 NZD
Retailer 4$4,714 NZD
Retailer 8$4,751 NZD
Retailer 6$4,783 NZD
Retailer 9$4,783 NZD
Retailer 10$4,796 NZD
Retailer 7$4,967 NZD
Retailer 20$5,033 NZD
Retailer 5$5,034 NZD
Retailer 13$5,200 NZD
Retailer 19$5,475 NZD
Retailer 14$5,520 NZD
Retailer 21$5,602 NZD
Retailer 25$5,824 NZD
Retailer 22$5,838 NZD
Retailer 16$7,036 NZD
Retailer 18$7,231 NZD
Retailer 26$8,355 NZD
NZ Jewellers$9,999 NZD

20 data points across 26 retailers

27 retailers$3,734 NZD to $9,999 NZD

A
Cheapest Retailer
-
$3,734 NZD
A
Retailer 2
-
$3,748 NZD
View
A
Retailer 3
-
$4,225 NZD
View
A
Retailer 4
-
$4,232 NZD
View
A
Retailer 5
-
$4,273 NZD
View
A
Retailer 6
-
$4,284 NZD
View
A
Retailer 7
-
$4,415 NZD
View
Final sale: no returns
A
Retailer 8
-
$4,577 NZD
View
B+
Retailer 9
-
$4,714 NZD
View
A
Retailer 10
-
$4,751 NZD
View
Retailer 11
-
$4,783 NZD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$4,783 NZD
View
A
Retailer 13
-
$4,796 NZD
View
B+
Retailer 14
-
$4,967 NZD
View
A
Retailer 15
-
$5,033 NZD
View
B+
Retailer 16
-
$5,034 NZD
View
B+
Retailer 17
-
$5,200 NZD
View
B+
Retailer 18
-
$5,475 NZD
View
B+
Retailer 19
-
$5,520 NZD
View
B+
Retailer 20
-
$5,602 NZD
View
Retailer 21
-
$5,623 NZD
View
Price last confirmed 30 days ago
B+
Retailer 22
-
$5,824 NZD
View
B+
Retailer 23
-
$5,838 NZD
View
B
Retailer 24
-
$7,036 NZD
View
B
Retailer 25
-
$7,231 NZD
View
B
Retailer 26
-
$8,355 NZD
View
Most Expensive
B
NZ Jewellers
5902ba5c-c8b1-40b6-acc0-31f7ddff97ce · Nov 5
$9,999 NZD
$5,621 USD
View
26 more retailers have this diamond
Prices start from $3,734 NZDSave up to $6,265 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
$3,734 NZD