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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 €1,643 EUR
HK$14,400 HKD
As of November 1, 2026
Save €2,949 EUR (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,593 EUR at NZ Jewellers · As of November 2, 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 November 1, 2026, with prices from €1,643 to €4,593, a €2,949 spread on the same certified stone. NZ Jewellers lists it at €4,593. 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
Colour
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: €4,593 EUR|Low: €1,632 EUR|High: €4,593 EUR|Avg: €2,306 EUR
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
November 1, 2026
Retailer 7€1,643 EUR
Retailer 8€1,761 EUR
Retailer 10€1,784 EUR
Retailer 14€1,797 EUR
Retailer 11€1,990 EUR
Retailer 13€1,990 EUR
Retailer 9€2,082 EUR
Retailer 12€2,296 EUR
Retailer 4€2,300 EUR
Retailer 6€2,300 EUR
Retailer 5€2,372 EUR
Retailer 3€2,614 EUR
Retailer 2€2,731 EUR
NZ Jewellers€4,593 EUR

18 data points across 14 retailers

12 retailers€1,643 EUR to €4,593 EUR

B+
Cheapest Retailer
-
€1,643 EUR
HK$14,400 HKD
B+
Retailer 2
-
€1,761 EUR
$1,975 USD
View
B+
Retailer 3
-
€1,784 EUR
$2,001 USD
View
B
Retailer 4
-
€1,990 EUR
$2,232 USD
View
B
Retailer 5
-
€1,990 EUR
$2,232 USD
View
B
Retailer 6
-
€2,082 EUR
$2,335 USD
View
B
Retailer 7
-
€2,296 EUR
$2,575 USD
View
B
Retailer 8
-
€2,300 EUR
$2,580 USD
View
B
Retailer 9
-
€2,300 EUR
$2,580 USD
View
B
Retailer 10
-
€2,372 EUR
$2,660 USD
View
B
Retailer 11
-
€2,731 EUR
View
Most Expensive
C
NZ Jewellers
2322e5a0-8041-479e-a371-46dfcafacd32 · Nov 2
€4,593 EUR
$5,151 USD
View
11 more retailers have this diamond
Prices start from €1,643 EURSave up to €2,949 EUR

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
€1,643 EUR