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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 €1,650 EUR
HK$14,400 HKD
As of November 1, 2026
Save €2,961 EUR (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,611 EUR 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 €1,650 to €4,611, a €2,961 spread on the same certified stone. NZ Jewellers lists it at €4,611. 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: €4,611 EUR|Low: €1,638 EUR|High: €4,611 EUR|Avg: €2,315 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€1,650 EUR
Retailer 8€1,768 EUR
Retailer 10€1,791 EUR
Retailer 14€1,805 EUR
Retailer 11€1,998 EUR
Retailer 13€1,998 EUR
Retailer 9€2,090 EUR
Retailer 12€2,305 EUR
Retailer 4€2,309 EUR
Retailer 6€2,309 EUR
Retailer 5€2,381 EUR
Retailer 3€2,624 EUR
Retailer 2€2,742 EUR
NZ Jewellers€4,611 EUR

18 data points across 14 retailers

12 retailers€1,650 EUR to €4,611 EUR

B+
Cheapest Retailer
-
€1,650 EUR
HK$14,400 HKD
B+
Retailer 2
-
€1,768 EUR
$1,975 USD
View
B+
Retailer 3
-
€1,791 EUR
$2,001 USD
View
B
Retailer 4
-
€1,998 EUR
$2,232 USD
View
B
Retailer 5
-
€1,998 EUR
$2,232 USD
View
B
Retailer 6
-
€2,090 EUR
$2,335 USD
View
B
Retailer 7
-
€2,305 EUR
$2,575 USD
View
B
Retailer 8
-
€2,309 EUR
$2,580 USD
View
B
Retailer 9
-
€2,309 EUR
$2,580 USD
View
B
Retailer 10
-
€2,381 EUR
$2,660 USD
View
B
Retailer 11
-
€2,742 EUR
View
Most Expensive
C
NZ Jewellers
2322e5a0-8041-479e-a371-46dfcafacd32 · Oct 30
€4,611 EUR
$5,151 USD
View
11 more retailers have this diamond
Prices start from €1,650 EURSave up to €2,961 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
€1,650 EUR