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Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6392476992

Certificate GIA 6392476992

Diamond specifications and retailer prices

From $10,257 AUD
As of November 4, 2026
Save $4,151 AUD (29%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,898 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6392476992. Listed at 22 retailers as of November 4, 2026, with a 40% 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6392476992
Dimensions6.68 × 6.63 × 3.92 mm
L/W Ratio1.01
Top View
6.68 mm6.63 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6392476992
Side View
Table 60.0%CrownGirdle: ThinPavilionCulet: NoneDepth 58.9%

Caratlytics Score

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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 4
Current: $12,655 AUD|Low: $9,605 AUD|High: $19,439 AUD|Avg: $13,883 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$10,257 AUD
Retailer 7$11,527 AUD
Retailer 1$12,655 AUD
Retailer 8$12,678 AUD
Retailer 6$12,731 AUD
Retailer 3$14,182 AUD
Retailer 2$16,815 AUD
Retailer 4$19,155 AUD

44 data points across 8 retailers

22 retailers$10,257 AUD to $14,408 AUD

B
Cheapest Retailer
-
$10,257 AUD
B
Retailer 2
-
$10,448 AUD
View
B
Retailer 3
-
$10,792 AUD
View
B
Retailer 4
-
$11,324 AUD
View
B
Retailer 5
-
$11,471 AUD
View
Retailer 6
-
$11,527 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$11,527 AUD
View
Final sale: no returns
B
Retailer 8
-
$12,487 AUD
View
B
Retailer 9
-
$12,655 AUD
View
B
Retailer 10
-
$12,678 AUD
View
Retailer 11
-
$12,731 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$13,671 AUD
View
B
Retailer 13
-
$13,671 AUD
View
B
Retailer 14
-
$13,701 AUD
View
B
Retailer 15
-
$14,128 AUD
View
B
Retailer 16
-
$14,182 AUD
View
B
Retailer 17
-
$14,408 AUD
View
Retailer 18
-
$15,175 AUD
View
Price last confirmed 14 days ago
Retailer 19
-
$16,815 AUD
View
Price under review
Retailer 20
-
$19,155 AUD
View
Price under review
Most Expensive
Diamond Quarter
1.03SI1E6392EF6AN · Nov 5
$20,898 AUD
£11,519 GBP
View
Price under review
20 more retailers have this diamond
Prices start from $10,257 AUDSave up to $4,151 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 Round
$10,257 AUD