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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 2566373367

Certificate GIA 2566373367

Diamond specifications and retailer prices

From $1,870 SGD
As of November 6, 2026
Save $4,220 SGD (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,090 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 2566373367. Listed at 11 retailers as of November 5, 2026, with prices from $1,870 to $6,090, a $4,220 spread on the same certified stone. NZ Jewellers lists it at $6,090. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566373367
Dimensions6.48 × 4.98 × 3.56 mm
L/W Ratio1.30
Girdle conditionThick to Very Thick
Key to symbols
Feather, Crystal
Top View
6.48 mm4.98 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566373367
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.4%

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: $6,090 SGD|Low: $1,853 SGD|High: $6,090 SGD|Avg: $2,917 SGD|+12.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10$1,870 SGD
Retailer 4$1,879 SGD
Retailer 3$1,990 SGD
Retailer 11$2,334 SGD
Retailer 5$2,422 SGD
Retailer 9$2,497 SGD
Retailer 6$2,599 SGD
Retailer 8$2,612 SGD
Retailer 2$3,107 SGD
Retailer 7$4,363 SGD
NZ Jewellers$6,090 SGD

31 data points across 11 retailers

11 retailers$1,870 SGD to $6,090 SGD

A
Cheapest Retailer
-
$1,870 SGD
A
Retailer 2
-
$1,879 SGD
View
A
Retailer 3
-
$1,990 SGD
View
Final sale: no returns
B+
Retailer 4
-
$2,334 SGD
View
B+
Retailer 5
-
$2,422 SGD
View
B+
Retailer 6
-
$2,497 SGD
View
B+
Retailer 7
-
$2,599 SGD
View
B+
Retailer 8
-
$2,612 SGD
View
B+
Retailer 9
-
$3,107 SGD
View
B
Retailer 10
-
$4,363 SGD
View
Most Expensive
C
NZ Jewellers
147dd911-f053-4819-bf74-292a933c0f11 · Nov 5
$6,090 SGD
$4,752 USD
View
10 more retailers have this diamond
Prices start from $1,870 SGDSave up to $4,220 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
$1,870 SGD