Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6441821726

Certificate GIA 6441821726

Diamond specifications and retailer prices

From $3,249 USD
As of November 6, 2026
Save $3,606 USD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,499 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 6441821726. Listed at 22 retailers as of November 2, 2026, with a 111% 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

1.00
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6441821726
Dimensions6.47 × 6.43 × 3.86 mm
L/W Ratio1.01
Star length50%
Top View
6.47 mm6.43 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6441821726
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,307 USD|Low: $3,112 USD|High: $6,938 USD|Avg: $4,377 USD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$3,249 USD
Retailer 8$3,360 USD
Retailer 7$3,432 USD
Retailer 9$3,599 USD
Retailer 1$4,307 USD
Retailer 6$4,422 USD
Retailer 4$4,554 USD
Retailer 10$4,591 USD
Retailer 3$5,254 USD
Retailer 5$6,855 USD

42 data points across 10 retailers

22 retailers$3,249 USD to $6,855 USD

B+
Cheapest Retailer
-
$3,249 USD
B+
Retailer 2
-
$3,360 USD
View
B+
Retailer 3
-
$3,363 USD
View
B+
Retailer 4
-
$3,432 USD
View
B
Retailer 5
-
$3,599 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,725 USD
View
B+
Retailer 7
-
$3,892 USD
View
Retailer 8
-
$3,899 USD
View
Price last confirmed 21 days ago
Retailer 9
-
$3,899 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$4,049 USD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$4,307 USD
View
B
Retailer 12
-
$4,400 USD
View
B
Retailer 13
-
$4,400 USD
View
B
Retailer 14
-
$4,422 USD
View
Retailer 15
-
$4,499 USD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$4,550 USD
View
B
Retailer 17
-
$4,554 USD
View
Retailer 18
-
$4,591 USD
View
Price last confirmed 28 days ago
Retailer 19
-
$4,870 USD
View
Price last confirmed 14 days ago
B
Retailer 20
-
$5,254 USD
View
B
Retailer 21
-
$6,855 USD
View
Most Expensive
NZ Jewellers
eca354b8-503c-4be2-9e95-23624b3afd7e · Oct 20
$7,499 USD
View
Price last confirmed 17 days ago
21 more retailers have this diamond
Prices start from $3,249 USDSave up to $3,606 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.

B+
1.00ct Round
$3,249 USD