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Round|Natural|GIA

1.09ct F I1 Round Natural Diamond

GD • F/I1 • GIA 6203875080

Certificate GIA 6203875080

Diamond specifications and retailer prices

From $3,928 AUD
$2,753 USD
As of November 3, 2026
Save $638 AUD (14%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,951 AUD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a standard cut grade and certified by GIA 6203875080. Listed at 11 retailers as of November 2, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.09
Carat
F
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6203875080
Dimensions6.58 × 6.54 × 3.96 mm
L/W Ratio1.01
Top View
6.58 mm6.54 mm1.09 ctF / I1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6203875080
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 60.4%

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 3
Current: $4,423 AUD|Low: $3,450 AUD|High: $5,322 AUD|Avg: $4,406 AUD|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 12, 2026
Retailer 7$3,450 AUD
Retailer 5$3,701 AUD
Retailer 3$3,928 AUD
Retailer 1$4,423 AUD
Retailer 6$4,423 AUD
Retailer 9$4,527 AUD
Retailer 4$4,566 AUD
Retailer 8$5,084 AUD
Retailer 2$5,296 AUD

14 data points across 9 retailers

11 retailers$3,928 AUD to $4,566 AUD

Retailer 1
-
$3,701 AUD
$2,594 USD
Price last confirmed 27 days ago
B
Retailer 2
-
$3,928 AUD
$2,753 USD
View
Retailer 3
-
$4,135 AUD
$2,898 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$4,135 AUD
$2,898 USD
View
Price last confirmed 26 days ago
Retailer 5
-
$4,294 AUD
$3,009 USD
View
Price last confirmed 34 days ago
B
Retailer 6
-
$4,423 AUD
$3,100 USD
View
B
Retailer 7
-
$4,423 AUD
$3,100 USD
View
Retailer 8
-
$4,527 AUD
$3,173 USD
View
Price last confirmed 99 days ago
B
Retailer 9
-
$4,566 AUD
$3,200 USD
View
Retailer 10
-
$4,770 AUD
$3,343 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
90fbc592-841a-4fdf-92a0-2f37c67d0cd1 · Sep 27
$7,951 AUD
$5,572 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from $3,928 AUDSave up to $638 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
1.09ct Round
$3,928 AUD