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Round|Natural|GIA

1.00ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2447974240

Certificate GIA 2447974240

Diamond specifications and retailer prices

From $2,595 NZD
As of November 6, 2026
Save $3,504 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,516 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2447974240. Listed at 18 retailers as of November 4, 2026, with a 135% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2447974240
Dimensions6.54 × 6.51 × 3.91 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.54 mm6.51 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2447974240
Side View
Table 60.0%Crown 31.5°Girdle: THN-NULPavilion 41.6°Culet: NoneDepth 59.9%

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: $8,516 NZD|Low: $2,572 NZD|High: $8,558 NZD|Avg: $4,042 NZD|-0.5%
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
November 6, 2026
Retailer 13$2,595 NZD
Retailer 8$3,061 NZD
Retailer 14$3,152 NZD
Retailer 5$3,222 NZD
Retailer 2$3,295 NZD
Retailer 4$3,492 NZD
Retailer 15$3,492 NZD
Retailer 7$3,599 NZD
Retailer 16$3,652 NZD
Retailer 3$3,736 NZD
Retailer 9$3,746 NZD
Retailer 6$4,029 NZD
Retailer 10$4,031 NZD
Retailer 11$4,732 NZD
Retailer 12$6,100 NZD
NZ Jewellers$8,516 NZD

27 data points across 16 retailers

18 retailers$2,595 NZD to $6,100 NZD

A
Cheapest Retailer
-
$2,595 NZD
A
Retailer 2
-
$3,061 NZD
View
A
Retailer 3
-
$3,152 NZD
View
Retailer 4
-
$3,177 NZD
View
Price last confirmed 82 days ago
A
Retailer 5
-
$3,222 NZD
View
Final sale: no returns
A
Retailer 6
-
$3,295 NZD
View
Retailer 7
-
$3,492 NZD
View
Price last confirmed 11 days ago
Retailer 8
-
$3,492 NZD
View
Price last confirmed 12 days ago
A
Retailer 9
-
$3,501 NZD
View
A
Retailer 10
-
$3,599 NZD
View
Retailer 11
-
$3,652 NZD
View
Price last confirmed 12 days ago
A
Retailer 12
-
$3,736 NZD
View
A
Retailer 13
-
$3,746 NZD
View
Retailer 14
-
$4,029 NZD
View
Price last confirmed 10 days ago
A
Retailer 15
-
$4,031 NZD
View
B+
Retailer 16
-
$4,732 NZD
View
B+
Retailer 17
-
$6,100 NZD
View
Most Expensive
NZ Jewellers
a1e2d04e-eca9-40e4-84d3-f1cc22c453cf · Oct 27
$8,516 NZD
$4,787 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $2,595 NZDSave up to $3,504 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
$2,595 NZD