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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2567270628

Certificate GIA 2567270628

Diamond specifications and retailer prices

From $3,233 NZD
As of November 6, 2026
Save $4,277 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,090 NZD at NZ Jewellers · As of October 17, 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 2567270628. Listed at 19 retailers as of November 4, 2026, with a 132% 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2567270628
Dimensions6.40 × 6.38 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.40 mm6.38 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2567270628
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,233 NZD|Low: $3,233 NZD|High: $7,658 NZD|Avg: $4,393 NZD|-3.3%
Retailer 1
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
November 6, 2026
Retailer 1$3,233 NZD
Retailer 6$3,233 NZD
Retailer 5$3,640 NZD
Retailer 11$3,685 NZD
Retailer 14$3,761 NZD
Retailer 3$3,920 NZD
Retailer 10$3,943 NZD
Retailer 4$3,965 NZD
Retailer 7$4,113 NZD
Retailer 12$4,564 NZD
Retailer 9$4,925 NZD
Retailer 8$5,053 NZD
Retailer 2$6,240 NZD
Retailer 13$7,510 NZD

22 data points across 14 retailers

19 retailers$3,233 NZD to $7,510 NZD

A
Cheapest Retailer
-
$3,233 NZD
A
Retailer 2
-
$3,233 NZD
View
Retailer 3
-
$3,640 NZD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$3,685 NZD
View
A
Retailer 5
-
$3,761 NZD
View
A
Retailer 6
-
$3,920 NZD
View
A
Retailer 7
-
$3,943 NZD
View
A
Retailer 8
-
$3,949 NZD
View
A
Retailer 9
-
$3,965 NZD
View
Final sale: no returns
A
Retailer 10
-
$4,113 NZD
View
Retailer 11
-
$4,347 NZD
View
Price last confirmed 19 days ago
A
Retailer 12
-
$4,564 NZD
View
Retailer 13
-
$4,600 NZD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$4,925 NZD
View
Retailer 15
-
$5,017 NZD
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$5,053 NZD
View
B+
Retailer 17
-
$6,240 NZD
View
B
Retailer 18
-
$7,510 NZD
View
Most Expensive
NZ Jewellers
70971cb7-2c63-445b-9832-600e7f6dc01d · Oct 17
$9,090 NZD
$5,039 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $3,233 NZDSave up to $4,277 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
$3,233 NZD