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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 $1,864 SGD
As of November 6, 2026
Save $2,516 SGD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,114 SGD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,114 SGD|Low: $1,847 SGD|High: $6,145 SGD|Avg: $2,902 SGD|-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$1,864 SGD
Retailer 8$2,198 SGD
Retailer 14$2,263 SGD
Retailer 5$2,313 SGD
Retailer 2$2,366 SGD
Retailer 4$2,507 SGD
Retailer 15$2,507 SGD
Retailer 7$2,584 SGD
Retailer 16$2,622 SGD
Retailer 3$2,682 SGD
Retailer 9$2,690 SGD
Retailer 6$2,893 SGD
Retailer 10$2,894 SGD
Retailer 11$3,398 SGD
Retailer 12$4,380 SGD
NZ Jewellers$6,114 SGD

27 data points across 16 retailers

18 retailers$1,864 SGD to $4,380 SGD

A
Cheapest Retailer
-
$1,864 SGD
A
Retailer 2
-
$2,198 SGD
View
A
Retailer 3
-
$2,263 SGD
View
Retailer 4
-
$2,281 SGD
View
Price last confirmed 82 days ago
A
Retailer 5
-
$2,313 SGD
View
Final sale: no returns
A
Retailer 6
-
$2,366 SGD
View
Retailer 7
-
$2,507 SGD
View
Price last confirmed 11 days ago
Retailer 8
-
$2,507 SGD
View
Price last confirmed 12 days ago
A
Retailer 9
-
$2,514 SGD
View
A
Retailer 10
-
$2,584 SGD
View
Retailer 11
-
$2,622 SGD
View
Price last confirmed 12 days ago
A
Retailer 12
-
$2,682 SGD
View
A
Retailer 13
-
$2,690 SGD
View
Retailer 14
-
$2,893 SGD
View
Price last confirmed 10 days ago
A
Retailer 15
-
$2,894 SGD
View
B+
Retailer 16
-
$3,398 SGD
View
B+
Retailer 17
-
$4,380 SGD
View
Most Expensive
NZ Jewellers
a1e2d04e-eca9-40e4-84d3-f1cc22c453cf · Oct 27
$6,114 SGD
$4,787 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $1,864 SGDSave up to $2,516 SGD

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
$1,864 SGD