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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1242026926

Certificate GIA 1242026926

Diamond specifications and retailer prices

From $2,345 SGD
As of November 6, 2026
Save $3,222 SGD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,625 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct 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 1242026926. Listed at 19 retailers as of November 4, 2026, with a 137% 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242026926
Dimensions7.08 × 5.23 × 3.53 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.08 mm5.23 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242026926
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.5%

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: $3,009 SGD|Low: $2,297 SGD|High: $5,663 SGD|Avg: $3,359 SGD|+0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 3$2,345 SGD
Retailer 7$2,389 SGD
Retailer 12$2,570 SGD
Retailer 6$2,663 SGD
Retailer 11$2,749 SGD
Retailer 14$2,896 SGD
Retailer 15$2,922 SGD
Retailer 5$2,957 SGD
Retailer 1$3,009 SGD
Retailer 2$3,273 SGD
Retailer 9$3,888 SGD
Retailer 8$3,956 SGD
Retailer 4$4,434 SGD
Retailer 13$4,734 SGD
Retailer 10$5,567 SGD

31 data points across 15 retailers

19 retailers$2,345 SGD to $5,567 SGD

A
Cheapest Retailer
-
$2,345 SGD
A
Retailer 2
-
$2,389 SGD
View
A
Retailer 3
-
$2,570 SGD
View
B+
Retailer 4
-
$2,663 SGD
View
Final sale: no returns
B+
Retailer 5
-
$2,749 SGD
View
B+
Retailer 6
-
$2,896 SGD
View
B+
Retailer 7
-
$2,922 SGD
View
B+
Retailer 8
-
$2,957 SGD
View
B+
Retailer 9
-
$3,009 SGD
View
B+
Retailer 10
-
$3,163 SGD
View
Retailer 11
-
$3,182 SGD
View
Price last confirmed 37 days ago
B+
Retailer 12
-
$3,273 SGD
View
B
Retailer 13
-
$3,888 SGD
View
Retailer 14
-
$3,911 SGD
View
Price last confirmed 36 days ago
B
Retailer 15
-
$3,956 SGD
View
B
Retailer 16
-
$4,434 SGD
View
B
Retailer 17
-
$4,734 SGD
View
B
Retailer 18
-
$5,567 SGD
View
Most Expensive
NZ Jewellers
62ffbbde-18a4-4360-8d7e-35c1b4843a32 · Sep 30
$6,625 SGD
$5,169 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $2,345 SGDSave up to $3,222 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
1.20ct Radiant
$2,345 SGD