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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 2557319194

Certificate GIA 2557319194

Diamond specifications and retailer prices

From $1,225 SGD
As of November 6, 2026
Save $2,839 SGD (70%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,064 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2557319194. Listed at 17 retailers as of November 5, 2026, with prices from $1,225 to $4,064, a $2,839 spread on the same certified stone. NZ Jewellers lists it at $4,064. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557319194
Dimensions6.75 × 5.13 × 3.58 mm
L/W Ratio1.32
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.75 mm5.13 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557319194
Side View
Table 69.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 69.7%

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: $4,064 SGD|Low: $1,225 SGD|High: $4,201 SGD|Avg: $2,039 SGD|-3.3%
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
November 7, 2026
Retailer 12$1,225 SGD
Retailer 11$1,526 SGD
Retailer 8$1,557 SGD
Retailer 13$1,598 SGD
Retailer 4$1,666 SGD
Retailer 7$1,694 SGD
Retailer 10$1,711 SGD
Retailer 6$1,824 SGD
Retailer 14$1,839 SGD
Retailer 9$1,862 SGD
Retailer 3$1,901 SGD
Retailer 5$2,033 SGD
Retailer 15$2,289 SGD
Retailer 2$3,000 SGD
NZ Jewellers$4,064 SGD

16 data points across 15 retailers

17 retailers$1,225 SGD to $4,064 SGD

A
Cheapest Retailer
-
$1,225 SGD
B+
Retailer 2
-
$1,526 SGD
View
B+
Retailer 3
-
$1,557 SGD
View
B+
Retailer 4
-
$1,598 SGD
View
B+
Retailer 5
-
$1,666 SGD
View
Retailer 6
-
$1,694 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,711 SGD
View
B+
Retailer 8
-
$1,824 SGD
View
B+
Retailer 9
-
$1,839 SGD
View
B+
Retailer 10
-
$1,862 SGD
View
B+
Retailer 11
-
$1,901 SGD
View
B+
Retailer 12
-
$2,026 SGD
View
B+
Retailer 13
-
$2,033 SGD
View
Retailer 14
-
$2,177 SGD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
$2,289 SGD
View
B
Retailer 16
-
$3,000 SGD
View
Most Expensive
B
NZ Jewellers
d434b20b-ed23-45c4-9d50-843a31c5c7dc · Nov 5
$4,064 SGD
$3,171 USD
View
16 more retailers have this diamond
Prices start from $1,225 SGDSave up to $2,839 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
$1,225 SGD