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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 7453410385

Certificate GIA 7453410385

Diamond specifications and retailer prices

From $1,443 SGD
As of November 6, 2026
Save $3,032 SGD (68%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,475 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7453410385. Listed at 25 retailers as of November 5, 2026, with prices from $1,443 to $4,475, a $3,032 spread on the same certified stone. NZ Jewellers lists it at $4,475. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.01°
Pavilion angle54.52°
OriginNatural
Grading LabGIA
CertificateGIA 7453410385
Dimensions6.61 × 5.09 × 3.55 mm
L/W Ratio1.30
Top View
6.61 mm5.09 mm1.00 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7453410385
Side View
Table 67.0%Crown 40.01°Girdle: MED-STKPavilion 54.52°Culet: NoneDepth 69.7%

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: $2,025 SGD|Low: $1,443 SGD|High: $3,248 SGD|Avg: $2,100 SGD|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3$1,443 SGD
Retailer 6$1,446 SGD
Retailer 12$1,615 SGD
Retailer 5$1,701 SGD
Retailer 7$1,779 SGD
Retailer 2$1,793 SGD
Retailer 8$2,010 SGD
Retailer 4$2,020 SGD
Retailer 1$2,025 SGD
Retailer 10$2,239 SGD
Retailer 9$2,541 SGD
Retailer 11$3,205 SGD

27 data points across 12 retailers

25 retailers$1,443 SGD to $4,475 SGD

A
Cheapest Retailer
-
$1,443 SGD
A
Retailer 2
-
$1,446 SGD
View
A
Retailer 3
-
$1,615 SGD
View
A
Retailer 4
-
$1,693 SGD
View
Final sale: no returns
A
Retailer 5
-
$1,701 SGD
View
A
Retailer 6
-
$1,779 SGD
View
A
Retailer 7
-
$1,793 SGD
View
Retailer 8
-
$1,835 SGD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,835 SGD
View
A
Retailer 10
-
$1,897 SGD
View
A
Retailer 11
-
$1,920 SGD
View
A
Retailer 12
-
$1,961 SGD
View
B+
Retailer 13
-
$2,008 SGD
View
B+
Retailer 14
-
$2,010 SGD
View
A
Retailer 15
-
$2,020 SGD
View
B+
Retailer 16
-
$2,025 SGD
View
B+
Retailer 17
-
$2,033 SGD
View
B+
Retailer 18
-
$2,035 SGD
View
B+
Retailer 19
-
$2,117 SGD
View
B+
Retailer 20
-
$2,239 SGD
View
Retailer 21
-
$2,394 SGD
View
Price last confirmed 33 days ago
B+
Retailer 22
-
$2,541 SGD
View
B
Retailer 23
-
$2,704 SGD
View
B
Retailer 24
-
$3,205 SGD
View
Most Expensive
B
NZ Jewellers
ecfbdb91-2f60-416a-b625-deba8701c916 · Nov 5
$4,475 SGD
$3,492 USD
View
24 more retailers have this diamond
Prices start from $1,443 SGDSave up to $3,032 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 Radiant
$1,443 SGD