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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6551596013

Certificate GIA 6551596013

Diamond specifications and retailer prices

From $4,199 SGD
As of November 6, 2026
Save $4,637 SGD (52%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,988 SGD at NZ Jewellers · As of October 17, 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 6551596013. Listed at 22 retailers as of November 4, 2026, with a 110% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551596013
Dimensions7.69 × 5.30 × 3.60 mm
L/W Ratio1.45
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.69 mm5.30 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551596013
Side View
Table 68.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.9%

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: $5,634 SGD|Low: $4,166 SGD|High: $9,188 SGD|Avg: $6,041 SGD|-3.2%
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
November 7, 2026
Retailer 14$4,199 SGD
Retailer 7$4,348 SGD
Retailer 5$4,987 SGD
Retailer 12$5,071 SGD
Retailer 4$5,134 SGD
Retailer 9$5,296 SGD
Retailer 8$5,397 SGD
Retailer 1$5,634 SGD
Retailer 6$5,733 SGD
Retailer 3$5,753 SGD
Retailer 10$6,259 SGD
Retailer 11$6,787 SGD
Retailer 13$8,835 SGD
Retailer 2$9,008 SGD

24 data points across 14 retailers

22 retailers$4,199 SGD to $8,835 SGD

A
Cheapest Retailer
-
$4,199 SGD
A
Retailer 2
-
$4,348 SGD
View
B+
Retailer 3
-
$4,987 SGD
View
B+
Retailer 4
-
$5,071 SGD
View
B+
Retailer 5
-
$5,134 SGD
View
Final sale: no returns
B+
Retailer 6
-
$5,243 SGD
View
B+
Retailer 7
-
$5,248 SGD
View
B+
Retailer 8
-
$5,296 SGD
View
B+
Retailer 9
-
$5,397 SGD
View
B+
Retailer 10
-
$5,562 SGD
View
B+
Retailer 11
-
$5,634 SGD
View
Retailer 12
-
$5,733 SGD
View
Price last confirmed 20 days ago
Retailer 13
-
$5,733 SGD
View
Price last confirmed 22 days ago
Retailer 14
-
$5,733 SGD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$5,753 SGD
View
Retailer 16
-
$6,140 SGD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$6,259 SGD
View
Retailer 18
-
$6,614 SGD
View
Price last confirmed 19 days ago
B
Retailer 19
-
$6,787 SGD
View
B
Retailer 20
-
$8,835 SGD
View
Retailer 21
-
$9,008 SGD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
25c61bb8-2ffe-42e2-83bd-8333ee437c0f · Oct 17
$9,988 SGD
$7,793 USD
View
Price last confirmed 20 days ago
21 more retailers have this diamond
Prices start from $4,199 SGDSave up to $4,637 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
$4,199 SGD