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Radiant|Natural|GIA

1.03ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1377931134

Certificate GIA 1377931134

Diamond specifications and retailer prices

From $3,134 SGD
As of November 5, 2026
Save $1,681 SGD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,815 SGD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1.03ct natural radiant diamond

This 1.03ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1377931134. Listed at 11 retailers as of November 5, 2026, with prices from $3,134 to $4,815, a $1,681 spread on the same certified stone. Washington Diamond lists it at $4,815. 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

1.03
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1377931134
Dimensions5.59 × 5.40 × 3.82 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.59 mm5.40 mm1.03 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1377931134
Side View
Table 63.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 70.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,232 SGD|Low: $3,134 SGD|High: $4,815 SGD|Avg: $3,669 SGD|+2.0%
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
Washington Diamond
November 6, 2026
Retailer 3$3,134 SGD
Retailer 2$3,153 SGD
Retailer 7$3,351 SGD
Retailer 11$3,394 SGD
Retailer 4$3,523 SGD
Retailer 6$3,590 SGD
Retailer 13$3,801 SGD
Retailer 9$3,806 SGD
Retailer 10$3,806 SGD
Retailer 12$3,831 SGD
Retailer 8$3,935 SGD
Retailer 5$4,097 SGD
Retailer 1$4,232 SGD
Washington Diamond$4,815 SGD

19 data points across 14 retailers

11 retailers$3,134 SGD to $4,815 SGD

B
Cheapest Retailer
-
$3,134 SGD
B
Retailer 2
-
$3,153 SGD
View
B
Retailer 3
-
$3,351 SGD
View
B
Retailer 4
-
$3,394 SGD
View
B
Retailer 5
-
$3,801 SGD
View
B
Retailer 6
-
$3,806 SGD
View
B
Retailer 7
-
$3,806 SGD
View
B
Retailer 8
-
$3,831 SGD
View
B
Retailer 9
-
$3,935 SGD
View
B
Retailer 10
-
$4,232 SGD
View
Most Expensive
C
Washington Diamond
1917994528 · Nov 6
$4,815 SGD
$3,757 USD
View
10 more retailers have this diamond
Prices start from $3,134 SGDSave up to $1,681 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.

B
1.03ct Radiant
$3,134 SGD