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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 2245018786

Certificate GIA 2245018786

Diamond specifications and retailer prices

From $3,559 SGD
As of November 6, 2026
Save $4,331 SGD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,200 SGD at NZ Jewellers · As of October 11, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245018786. Listed at 22 retailers as of November 4, 2026, with a 122% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245018786
Dimensions6.88 × 5.27 × 3.67 mm
L/W Ratio1.31
Girdle conditionPolished
Top View
6.88 mm5.27 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245018786
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: 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: $4,515 SGD|Low: $3,494 SGD|High: $8,082 SGD|Avg: $4,690 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
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 8$3,559 SGD
Retailer 18$3,753 SGD
Retailer 2$3,833 SGD
Retailer 10$3,955 SGD
Retailer 12$4,029 SGD
Retailer 4$4,140 SGD
Retailer 5$4,147 SGD
Retailer 11$4,216 SGD
Retailer 16$4,257 SGD
Retailer 9$4,305 SGD
Retailer 6$4,383 SGD
Retailer 1$4,515 SGD
Retailer 13$4,589 SGD
Retailer 7$4,861 SGD
Retailer 14$5,508 SGD
Retailer 15$5,775 SGD
Retailer 3$7,201 SGD
Retailer 17$7,890 SGD

19 data points across 18 retailers

22 retailers$3,559 SGD to $7,890 SGD

A
Cheapest Retailer
-
$3,559 SGD
A
Retailer 2
-
$3,753 SGD
View
A
Retailer 3
-
$3,833 SGD
View
B+
Retailer 4
-
$3,955 SGD
View
Final sale: no returns
A
Retailer 5
-
$4,029 SGD
View
A
Retailer 6
-
$4,140 SGD
View
A
Retailer 7
-
$4,147 SGD
View
A
Retailer 8
-
$4,216 SGD
View
A
Retailer 9
-
$4,257 SGD
View
A
Retailer 10
-
$4,305 SGD
View
B+
Retailer 11
-
$4,383 SGD
View
B+
Retailer 12
-
$4,515 SGD
View
B+
Retailer 13
-
$4,589 SGD
View
B+
Retailer 14
-
$4,688 SGD
View
Retailer 15
-
$4,843 SGD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$4,861 SGD
View
Retailer 17
-
$5,067 SGD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$5,508 SGD
View
B+
Retailer 19
-
$5,775 SGD
View
B
Retailer 20
-
$7,201 SGD
View
B
Retailer 21
-
$7,890 SGD
View
Most Expensive
NZ Jewellers
1423e8c1-e719-4934-8b1e-4f5e77c950b6 · Oct 11
$8,200 SGD
$6,398 USD
View
Price last confirmed 26 days ago
21 more retailers have this diamond
Prices start from $3,559 SGDSave up to $4,331 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
$3,559 SGD