Round|Natural|GIA

1.00ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6451475677

Certificate GIA 6451475677

Diamond specifications and retailer prices

From $2,614 USD
As of November 6, 2026
Save $4,346 USD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,960 USD at Diamond Quarter · As of November 6, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451475677. Listed at 19 retailers as of November 6, 2026, with prices from $2,614 to $6,960, a $4,346 spread on the same certified stone. Diamond Quarter lists it at $6,960. 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

1.00
Carat
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6451475677
Dimensions6.46 × 6.42 × 3.93 mm
L/W Ratio1.01
Top View
6.46 mm6.42 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451475677
Side View
Table 57.0%Crown 33°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 61.0%

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: $2,614 USD|Low: $2,614 USD|High: $6,101 USD|Avg: $3,657 USD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$2,614 USD
Retailer 8$2,649 USD
Retailer 2$3,143 USD
Retailer 9$3,200 USD
Retailer 3$3,259 USD
Retailer 10$3,326 USD
Retailer 4$3,692 USD
Retailer 5$3,707 USD
Retailer 7$3,849 USD
Retailer 6$6,012 USD

31 data points across 10 retailers

19 retailers$2,614 USD to $6,960 USD

A
Cheapest Retailer
-
$2,614 USD
A
Retailer 2
-
$2,649 USD
View
B+
Retailer 3
-
$3,143 USD
View
B+
Retailer 4
-
$3,200 USD
View
B+
Retailer 5
-
$3,259 USD
View
B+
Retailer 6
-
$3,326 USD
View
Final sale: no returns
Retailer 7
-
$3,374 USD
View
Price last confirmed 109 days ago
Retailer 8
-
$3,605 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$3,605 USD
View
B+
Retailer 10
-
$3,692 USD
View
B+
Retailer 11
-
$3,707 USD
View
B+
Retailer 12
-
$3,743 USD
View
B+
Retailer 13
-
$3,750 USD
View
B+
Retailer 14
-
$3,849 USD
View
B
Retailer 15
-
$4,159 USD
View
B
Retailer 16
-
$4,217 USD
View
B
Retailer 17
-
$6,012 USD
View
B
Retailer 18
-
$6,280 USD
View
Most Expensive
B
Diamond Quarter
1.0SI2F64778F74N · Nov 6
$6,960 USD
£5,481 GBP
View
18 more retailers have this diamond
Prices start from $2,614 USDSave up to $4,346 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
1.00ct Round
$2,614 USD