Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6565154005

Certificate GIA 6565154005

Diamond specifications and retailer prices

From $2,419 USD
As of November 6, 2026
Save $3,301 USD (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,720 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565154005. Listed at 10 retailers as of November 5, 2026, with prices from $2,419 to $5,720, a $3,301 spread on the same certified stone. NZ Jewellers lists it at $5,720. 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

1.05
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565154005
Dimensions6.42 × 6.45 × 4.02 mm
L/W Ratio1.00
Key to symbols
Crystal, Feather, Needle, Pinpoint, Cloud
Top View
6.42 mm6.45 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565154005
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

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 6
Current: $5,720 USD|Low: $2,419 USD|High: $5,892 USD|Avg: $3,689 USD|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$2,419 USD
Retailer 7$2,809 USD
Retailer 10$2,989 USD
Retailer 2$3,142 USD
Retailer 5$3,283 USD
Retailer 3$3,371 USD
Retailer 8$3,410 USD
Retailer 4$3,760 USD
Retailer 6$5,476 USD
NZ Jewellers$5,720 USD

20 data points across 10 retailers

10 retailers$2,419 USD to $5,720 USD

A
Cheapest Retailer
-
$2,419 USD
A
Retailer 2
-
$2,809 USD
View
B+
Retailer 3
-
$2,989 USD
View
B+
Retailer 4
-
$3,142 USD
View
B+
Retailer 5
-
$3,283 USD
View
B+
Retailer 6
-
$3,371 USD
View
B+
Retailer 7
-
$3,410 USD
View
B+
Retailer 8
-
$3,760 USD
View
B
Retailer 9
-
$5,476 USD
View
Most Expensive
B
NZ Jewellers
a0ea82f5-239f-4be0-b24e-886fd76c7c48 · Nov 5
$5,720 USD
View
9 more retailers have this diamond
Prices start from $2,419 USDSave up to $3,301 USD

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
1.05ct Round
$2,419 USD