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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 7552598001

Certificate GIA 7552598001

Diamond specifications and retailer prices

From $2,000 SGD
$1,564 USD
As of November 2, 2026
Save $1,797 SGD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,286 SGD at NZ Jewellers · As of September 30, 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 7552598001. Listed at 12 retailers as of November 1, 2026, with a 90% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7552598001
Dimensions6.67 × 4.91 × 3.35 mm
L/W Ratio1.36
Girdle conditionPolished
Culet sizeNone
Key to symbols
Knot, Crystal, Needle
Top View
6.67 mm4.91 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7552598001
Side View
Table 68.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.1%

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 2
Current: $2,960 SGD|Low: $1,833 SGD|High: $3,843 SGD|Avg: $2,649 SGD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$2,000 SGD
Retailer 5$2,085 SGD
Retailer 2$2,429 SGD
Retailer 4$2,645 SGD
Retailer 7$2,828 SGD
Retailer 1$2,960 SGD
Retailer 3$3,797 SGD

43 data points across 7 retailers

12 retailers$2,000 SGD to $3,797 SGD

A
Cheapest Retailer
-
$2,000 SGD
$1,564 USD
Final sale: no returns
A
Retailer 2
-
$2,085 SGD
$1,630 USD
View
Retailer 3
-
$2,168 SGD
$1,695 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$2,168 SGD
$1,695 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$2,267 SGD
$1,773 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$2,429 SGD
£1,495 GBP
View
Retailer 7
-
$2,500 SGD
$1,955 USD
View
Price last confirmed 34 days ago
B+
Retailer 8
-
$2,645 SGD
ZAR 33,415 ZAR
View
Retailer 9
-
$2,828 SGD
A$3,402 AUD
View
Price last confirmed 27 days ago
B+
Retailer 10
-
$2,960 SGD
€2,204 EUR
View
B
Retailer 11
-
$3,797 SGD
£2,338 GBP
View
Most Expensive
NZ Jewellers
70523df3-f6a3-4abf-bd35-067ea9c37820 · Sep 30
$5,286 SGD
$4,133 USD
View
Price last confirmed 33 days ago
11 more retailers have this diamond
Prices start from $2,000 SGDSave up to $1,797 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
$2,000 SGD