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Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1555638026

Certificate GIA 1555638026

Diamond specifications and retailer prices

From $4,093 SGD
As of November 4, 2026
Save $3,694 SGD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,787 SGD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1555638026. Listed at 13 retailers as of November 4, 2026, with prices from $4,093 to $7,787, a $3,694 spread on the same certified stone. Helzberg Diamonds lists it at $7,787. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555638026
Dimensions6.94 × 5.34 × 3.65 mm
L/W Ratio1.30
Culet sizeNone
Top View
6.94 mm5.34 mm1.20 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555638026
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.3%

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 4
Current: $7,787 SGD|Low: $4,093 SGD|High: $7,787 SGD|Avg: $5,269 SGD|+4.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 9$4,093 SGD
Retailer 11$4,163 SGD
Retailer 6$4,193 SGD
Retailer 10$4,375 SGD
Retailer 2$4,728 SGD
Retailer 4$4,932 SGD
Retailer 13$5,224 SGD
Retailer 3$5,301 SGD
Retailer 8$5,458 SGD
Retailer 7$5,680 SGD
Retailer 12$6,905 SGD
Retailer 5$7,409 SGD
Helzberg Diamonds$7,787 SGD

38 data points across 13 retailers

13 retailers$4,093 SGD to $7,787 SGD

A
Cheapest Retailer
-
$4,093 SGD
A
Retailer 2
-
$4,163 SGD
View
A
Retailer 3
-
$4,193 SGD
View
B+
Retailer 4
-
$4,375 SGD
View
B+
Retailer 5
-
$4,728 SGD
View
B+
Retailer 6
-
$4,932 SGD
View
B+
Retailer 7
-
$5,224 SGD
View
B+
Retailer 8
-
$5,301 SGD
View
B+
Retailer 9
-
$5,458 SGD
View
B+
Retailer 10
-
$5,680 SGD
View
B
Retailer 11
-
$6,905 SGD
View
B
Retailer 12
-
$7,409 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLMJOGIM · Nov 4
$7,787 SGD
$6,076 USD
View
12 more retailers have this diamond
Prices start from $4,093 SGDSave up to $3,694 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
$4,093 SGD