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Radiant|Natural|GIA

1.02ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1236810838

Certificate GIA 1236810838

Diamond specifications and retailer prices

From $2,750 SGD
As of November 5, 2026
Save $4,274 SGD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,024 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct 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 1236810838. Listed at 17 retailers as of November 5, 2026, with prices from $2,750 to $7,024, a $4,274 spread on the same certified stone. NZ Jewellers lists it at $7,024. 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

1.02
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236810838
Dimensions6.38 × 5.22 × 3.70 mm
L/W Ratio1.22
Girdle conditionPolished
Cert comments
Clouds pinpoints and surface graining are not shown.
Key to symbols
Feather, Crystal
Top View
6.38 mm5.22 mm1.02 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236810838
Side View
Table 69.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,024 SGD|Low: $2,809 SGD|High: $7,024 SGD|Avg: $3,791 SGD
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$2,809 SGD
Retailer 11$2,936 SGD
Retailer 6$2,948 SGD
Retailer 3$3,037 SGD
Retailer 5$3,044 SGD
Retailer 7$3,044 SGD
Retailer 15$3,185 SGD
Retailer 14$3,317 SGD
Retailer 4$3,453 SGD
Retailer 2$3,555 SGD
Retailer 13$3,764 SGD
Retailer 9$4,101 SGD
Retailer 8$4,172 SGD
Retailer 10$5,870 SGD
NZ Jewellers$7,024 SGD

44 data points across 15 retailers

17 retailers$2,750 SGD to $7,024 SGD

B+
Cheapest Retailer
-
$2,750 SGD
B+
Retailer 2
-
$2,809 SGD
View
Final sale: no returns
B+
Retailer 3
-
$2,936 SGD
View
B+
Retailer 4
-
$2,948 SGD
View
B+
Retailer 5
-
$3,037 SGD
View
B+
Retailer 6
-
$3,044 SGD
View
Retailer 7
-
$3,044 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$3,105 SGD
View
B
Retailer 9
-
$3,185 SGD
View
B
Retailer 10
-
$3,453 SGD
View
B
Retailer 11
-
$3,513 SGD
View
B
Retailer 12
-
$3,555 SGD
View
Retailer 13
-
$3,764 SGD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$4,101 SGD
View
B
Retailer 15
-
$4,172 SGD
View
B
Retailer 16
-
$5,870 SGD
View
Most Expensive
B
NZ Jewellers
6cfd1771-c680-41ac-b95e-bfae3f91d2e6 · Nov 5
$7,024 SGD
$5,481 USD
View
16 more retailers have this diamond
Prices start from $2,750 SGDSave up to $4,274 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.

B+
1.02ct Radiant
$2,750 SGD