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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5553042899

Certificate GIA 5553042899

Diamond specifications and retailer prices

From €1,480 EUR
As of November 5, 2026
Save €2,033 EUR (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €4,310 EUR 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553042899. Listed at 19 retailers as of November 2, 2026, with a 137% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5553042899
Dimensions6.33 × 6.36 × 4.00 mm
L/W Ratio1.00
Top View
6.33 mm6.36 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553042899
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €4,310 EUR|Low: €1,480 EUR|High: €4,310 EUR|Avg: €2,205 EUR|+0.8%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 15€1,480 EUR
Retailer 17€1,528 EUR
Retailer 5€1,641 EUR
Retailer 3€1,677 EUR
Retailer 18€1,700 EUR
Retailer 14€1,862 EUR
Retailer 2€1,866 EUR
Retailer 10€1,867 EUR
Retailer 8€1,954 EUR
Retailer 4€2,112 EUR
Retailer 6€2,112 EUR
Retailer 9€2,155 EUR
Retailer 11€2,166 EUR
Retailer 7€2,183 EUR
Retailer 16€2,447 EUR
Retailer 12€2,553 EUR
Retailer 13€3,513 EUR
NZ Jewellers€4,310 EUR

26 data points across 18 retailers

19 retailers€1,480 EUR to €3,513 EUR

A
Cheapest Retailer
-
€1,480 EUR
A
Retailer 2
-
€1,528 EUR
View
A
Retailer 3
-
€1,641 EUR
View
A
Retailer 4
-
€1,677 EUR
View
Final sale: no returns
A
Retailer 5
-
€1,700 EUR
View
Retailer 6
-
€1,853 EUR
View
Price last confirmed 21 days ago
A
Retailer 7
-
€1,862 EUR
View
A
Retailer 8
-
€1,866 EUR
View
Retailer 9
-
€1,867 EUR
View
Price last confirmed 15 days ago
Retailer 10
-
€1,954 EUR
View
Price last confirmed 15 days ago
A
Retailer 11
-
€2,112 EUR
View
A
Retailer 12
-
€2,112 EUR
View
Retailer 13
-
€2,155 EUR
View
Price last confirmed 16 days ago
B+
Retailer 14
-
€2,166 EUR
View
B+
Retailer 15
-
€2,183 EUR
View
B+
Retailer 16
-
€2,447 EUR
View
B+
Retailer 17
-
€2,553 EUR
View
B
Retailer 18
-
€3,513 EUR
View
Most Expensive
NZ Jewellers
83c0332c-7649-483a-b899-540f4f630fff · Oct 20
€4,310 EUR
$4,838 USD
View
Price last confirmed 17 days ago
18 more retailers have this diamond
Prices start from €1,480 EURSave up to €2,033 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.

A
1.00ct Round
€1,480 EUR