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Round|Natural|GIA

1.00ct F I1 Round Natural Diamond

VG • F/I1 • GIA 1428408599

Certificate GIA 1428408599

Diamond specifications and retailer prices

From $1,843 USD
HK$14,400 HKD
As of November 1, 2026
Save $3,308 USD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,151 USD at NZ Jewellers · As of October 30, 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 I1 clarity (included), with a very-good cut grade and certified by GIA 1428408599. Listed at 12 retailers as of October 30, 2026, with prices from $1,843 to $5,151, a $3,308 spread on the same certified stone. NZ Jewellers lists it at $5,151. 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

1.00
Carat
F
Color
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1428408599
Dimensions6.46 × 6.40 × 3.89 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
6.46 mm6.40 mm1.00 ctF / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1428408599
Side View
Table 62.0%Crown 32°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 60.4%

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 1
Current: $5,151 USD|Low: $1,775 USD|High: $5,151 USD|Avg: $2,532 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 7$1,775 USD
Retailer 2$1,843 USD
Retailer 9$1,975 USD
Retailer 11$2,001 USD
Retailer 15$2,016 USD
Retailer 12$2,232 USD
Retailer 14$2,232 USD
Retailer 10$2,335 USD
Retailer 13$2,575 USD
Retailer 4$2,580 USD
Retailer 6$2,580 USD
Retailer 5$2,660 USD
Retailer 3$2,932 USD
Retailer 8$3,077 USD
NZ Jewellers$5,151 USD

17 data points across 15 retailers

12 retailers$1,843 USD to $5,151 USD

B+
Cheapest Retailer
-
$1,843 USD
HK$14,400 HKD
Retailer 2
-
$1,975 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
$2,001 USD
View
B
Retailer 4
-
$2,232 USD
View
B
Retailer 5
-
$2,232 USD
View
B
Retailer 6
-
$2,335 USD
View
B
Retailer 7
-
$2,575 USD
View
B
Retailer 8
-
$2,580 USD
View
B
Retailer 9
-
$2,580 USD
View
B
Retailer 10
-
$2,660 USD
View
B
Retailer 11
-
$3,077 USD
€2,930 EUR
View
Most Expensive
C
NZ Jewellers
2322e5a0-8041-479e-a371-46dfcafacd32 · Oct 30
$5,151 USD
View
11 more retailers have this diamond
Prices start from $1,843 USDSave up to $3,308 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
$1,843 USD