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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7521931738

Certificate GIA 7521931738

Diamond specifications and retailer prices

From $3,601 NZD
As of November 6, 2026
Save $6,104 NZD (63%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $9,705 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7521931738. Listed at 24 retailers as of November 5, 2026, with prices from $3,601 to $9,705, a $6,104 spread on the same certified stone. NZ Jewellers lists it at $9,705. 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 angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7521931738
Dimensions6.35 × 6.31 × 3.99 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.35 mm6.31 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7521931738
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°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 6
Current: $9,705 NZD|Low: $3,579 NZD|High: $9,705 NZD|Avg: $5,327 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 6$3,601 NZD
Retailer 19$3,790 NZD
Retailer 3$4,120 NZD
Retailer 16$4,158 NZD
Retailer 20$4,441 NZD
Retailer 2$4,515 NZD
Retailer 7$4,591 NZD
Retailer 10$4,609 NZD
Retailer 9$4,641 NZD
Retailer 11$4,641 NZD
Retailer 14$4,762 NZD
Retailer 22$4,883 NZD
Retailer 8$4,894 NZD
Retailer 21$5,015 NZD
Retailer 13$5,082 NZD
Retailer 12$5,101 NZD
Retailer 15$5,356 NZD
Retailer 4$5,621 NZD
Retailer 23$5,664 NZD
Retailer 17$7,142 NZD
Retailer 18$7,342 NZD
Retailer 5$8,109 NZD
NZ Jewellers$9,705 NZD

22 data points across 23 retailers

24 retailers$3,601 NZD to $9,705 NZD

A
Cheapest Retailer
-
$3,601 NZD
A
Retailer 2
-
$3,790 NZD
View
A
Retailer 3
-
$4,120 NZD
View
A
Retailer 4
-
$4,158 NZD
View
A
Retailer 5
-
$4,441 NZD
View
A
Retailer 6
-
$4,515 NZD
View
Final sale: no returns
A
Retailer 7
-
$4,591 NZD
View
A
Retailer 8
-
$4,609 NZD
View
A
Retailer 9
-
$4,641 NZD
View
Retailer 10
-
$4,641 NZD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$4,762 NZD
View
A
Retailer 12
-
$4,883 NZD
View
B+
Retailer 13
-
$4,894 NZD
View
B+
Retailer 14
-
$5,015 NZD
View
B+
Retailer 15
-
$5,082 NZD
View
B+
Retailer 16
-
$5,101 NZD
View
B+
Retailer 17
-
$5,356 NZD
View
Retailer 18
-
$5,370 NZD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$5,621 NZD
View
B+
Retailer 20
-
$5,664 NZD
View
B
Retailer 21
-
$7,142 NZD
View
B
Retailer 22
-
$7,342 NZD
View
B
Retailer 23
-
$8,109 NZD
View
Most Expensive
B
NZ Jewellers
5cb3b936-66a2-46ea-adc4-2528a6c27ea0 · Nov 5
$9,705 NZD
$5,380 USD
View
23 more retailers have this diamond
Prices start from $3,601 NZDSave up to $6,104 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
$3,601 NZD