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Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 6565507550

Certificate GIA 6565507550

Diamond specifications and retailer prices

From $4,183 SGD
As of November 6, 2026
Save $5,617 SGD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,800 SGD at NZ Jewellers · As of November 5, 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 D 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 6565507550. Listed at 22 retailers as of November 5, 2026, with prices from $4,183 to $9,800, a $5,617 spread on the same certified stone. NZ Jewellers lists it at $9,800. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565507550
Dimensions7.57 × 5.24 × 3.48 mm
L/W Ratio1.44
Girdle conditionPolished
Top View
7.57 mm5.24 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565507550
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.4%

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: $9,800 SGD|Low: $3,952 SGD|High: $9,800 SGD|Avg: $5,678 SGD|+2.5%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 8$4,183 SGD
Retailer 11$4,300 SGD
Retailer 22$4,407 SGD
Retailer 4$4,430 SGD
Retailer 13$4,477 SGD
Retailer 12$4,575 SGD
Retailer 16$4,693 SGD
Retailer 10$4,703 SGD
Retailer 6$4,835 SGD
Retailer 3$4,864 SGD
Retailer 20$4,991 SGD
Retailer 9$5,006 SGD
Retailer 14$5,033 SGD
Retailer 2$5,266 SGD
Retailer 7$5,394 SGD
Retailer 17$5,457 SGD
Retailer 15$5,754 SGD
Retailer 18$6,208 SGD
Retailer 19$6,863 SGD
Retailer 5$8,443 SGD
Retailer 21$8,935 SGD
NZ Jewellers$9,800 SGD

18 data points across 22 retailers

22 retailers$4,183 SGD to $9,800 SGD

A
Cheapest Retailer
-
$4,183 SGD
A
Retailer 2
-
$4,300 SGD
View
B+
Retailer 3
-
$4,407 SGD
View
A
Retailer 4
-
$4,430 SGD
View
A
Retailer 5
-
$4,477 SGD
View
A
Retailer 6
-
$4,575 SGD
View
B+
Retailer 7
-
$4,693 SGD
View
B+
Retailer 8
-
$4,703 SGD
View
Final sale: no returns
B+
Retailer 9
-
$4,835 SGD
View
B+
Retailer 10
-
$4,864 SGD
View
B+
Retailer 11
-
$4,991 SGD
View
B+
Retailer 12
-
$5,006 SGD
View
Retailer 13
-
$5,033 SGD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$5,266 SGD
View
B+
Retailer 15
-
$5,394 SGD
View
B+
Retailer 16
-
$5,457 SGD
View
Retailer 17
-
$5,754 SGD
View
Price last confirmed 12 days ago
B+
Retailer 18
-
$6,208 SGD
View
B+
Retailer 19
-
$6,863 SGD
View
B
Retailer 20
-
$8,443 SGD
View
B
Retailer 21
-
$8,935 SGD
View
Most Expensive
B
NZ Jewellers
8e292ed4-27ca-407b-8ce0-f56f7954f340 · Nov 5
$9,800 SGD
$7,647 USD
View
21 more retailers have this diamond
Prices start from $4,183 SGDSave up to $5,617 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
$4,183 SGD