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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 $1,459 USD
As of November 4, 2026
Save $1,970 USD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,787 USD 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
Color
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 4
Current: $4,787 USD|Low: $1,446 USD|High: $4,811 USD|Avg: $2,272 USD|-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$1,459 USD
Retailer 8$1,721 USD
Retailer 14$1,772 USD
Retailer 5$1,811 USD
Retailer 2$1,852 USD
Retailer 4$1,963 USD
Retailer 15$1,963 USD
Retailer 7$2,023 USD
Retailer 16$2,053 USD
Retailer 3$2,100 USD
Retailer 9$2,106 USD
Retailer 6$2,265 USD
Retailer 10$2,266 USD
Retailer 11$2,660 USD
Retailer 12$3,429 USD
NZ Jewellers$4,787 USD

27 data points across 16 retailers

18 retailers$1,459 USD to $3,429 USD

A
Cheapest Retailer
-
$1,459 USD
A
Retailer 2
-
$1,721 USD
View
A
Retailer 3
-
$1,772 USD
View
Retailer 4
-
$1,786 USD
View
Price last confirmed 82 days ago
A
Retailer 5
-
$1,811 USD
View
Final sale: no returns
A
Retailer 6
-
$1,852 USD
View
Retailer 7
-
$1,963 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$1,963 USD
View
Price last confirmed 12 days ago
A
Retailer 9
-
$1,968 USD
View
A
Retailer 10
-
$2,023 USD
View
Retailer 11
-
$2,053 USD
View
Price last confirmed 12 days ago
A
Retailer 12
-
$2,100 USD
View
A
Retailer 13
-
$2,106 USD
View
Retailer 14
-
$2,265 USD
View
Price last confirmed 10 days ago
A
Retailer 15
-
$2,266 USD
View
B+
Retailer 16
-
$2,660 USD
View
B+
Retailer 17
-
$3,429 USD
View
Most Expensive
NZ Jewellers
a1e2d04e-eca9-40e4-84d3-f1cc22c453cf · Oct 27
$4,787 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $1,459 USDSave up to $1,970 USD

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
$1,459 USD