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Round|Natural|GIA

1.05ct H I1 Round Natural Diamond

EX • H/I1 • GIA 6425595989

Certificate GIA 6425595989

Diamond specifications and retailer prices

From €1,679 EUR
$1,876 USD
As of November 1, 2026
Save €2,206 EUR (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €3,886 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6425595989. Listed at 7 retailers as of October 30, 2026, with prices from €1,679 to €3,886, a €2,206 spread on the same certified stone. NZ Jewellers lists it at €3,886. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
H
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6425595989
Dimensions6.49 × 6.46 × 4.04 mm
L/W Ratio1.00
Top View
6.49 mm6.46 mm1.05 ctH / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425595989
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: €3,886 EUR|Low: €1,679 EUR|High: €3,886 EUR|Avg: €2,219 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9€1,679 EUR
Retailer 7€1,753 EUR
Retailer 4€1,858 EUR
Retailer 6€1,858 EUR
Retailer 3€1,944 EUR
Retailer 5€2,145 EUR
Retailer 8€2,212 EUR
Retailer 10€2,266 EUR
Retailer 2€2,527 EUR
NZ Jewellers€3,886 EUR

21 data points across 10 retailers

7 retailers€1,679 EUR to €3,886 EUR

B+
Cheapest Retailer
-
€1,679 EUR
$1,876 USD
B+
Retailer 2
-
€1,858 EUR
$2,076 USD
View
B+
Retailer 3
-
€1,858 EUR
$2,076 USD
View
B+
Retailer 4
-
€1,944 EUR
$2,172 USD
View
B
Retailer 5
-
€2,145 EUR
$2,396 USD
View
B
Retailer 6
-
€2,527 EUR
View
Most Expensive
B
NZ Jewellers
c4d2fe79-2c19-4ff9-bc90-d82f61b0973f · Oct 30
€3,886 EUR
$4,341 USD
View
6 more retailers have this diamond
Prices start from €1,679 EURSave up to €2,206 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+
1.05ct Round
€1,679 EUR