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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 $3,558 AUD
As of November 5, 2026
Save $1,909 AUD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,468 AUD 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 $3,558 to $5,468, a $1,909 spread on the same certified stone. Washington Diamond lists it at $5,468. 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

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,806 AUD|Low: $3,558 AUD|High: $5,468 AUD|Avg: $4,167 AUD|+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$3,558 AUD
Retailer 2$3,580 AUD
Retailer 7$3,806 AUD
Retailer 11$3,854 AUD
Retailer 4$4,001 AUD
Retailer 6$4,077 AUD
Retailer 13$4,317 AUD
Retailer 9$4,323 AUD
Retailer 10$4,323 AUD
Retailer 12$4,350 AUD
Retailer 8$4,468 AUD
Retailer 5$4,653 AUD
Retailer 1$4,806 AUD
Washington Diamond$5,468 AUD

19 data points across 14 retailers

11 retailers$3,558 AUD to $5,468 AUD

B
Cheapest Retailer
-
$3,558 AUD
B
Retailer 2
-
$3,580 AUD
View
B
Retailer 3
-
$3,806 AUD
View
B
Retailer 4
-
$3,854 AUD
View
B
Retailer 5
-
$4,317 AUD
View
B
Retailer 6
-
$4,323 AUD
View
B
Retailer 7
-
$4,323 AUD
View
B
Retailer 8
-
$4,350 AUD
View
B
Retailer 9
-
$4,468 AUD
View
B
Retailer 10
-
$4,806 AUD
View
Most Expensive
C
Washington Diamond
1917994528 · Nov 6
$5,468 AUD
$3,757 USD
View
10 more retailers have this diamond
Prices start from $3,558 AUDSave up to $1,909 AUD

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
$3,558 AUD